Luận văn Thạc sĩ Kỹ thuật: Nghiên cứu tối ưu điều khiển công suất khi tăng cường các trạm lặp MIMO trong Cell

Đề tài Nghiên cứu tối ưu điều khiển công suất khi tăng cường các trạm lặp MIMO trong Cell đã tìm hiểu và đề xuất mô hình tăng cường MIMO Relays trên cơ sở tối ưu điều khiển công suất nhằm tối ưu dung lượng của Cell. Mời các bạn cùng tham khảo nội dung chi tiết.

B O I HI - NGUY U TU KHIT M LP MIMO TRONG CELL LU THUT I - 2015 B O I H NI - NGUY U TU KHIT M LP MIMO TRONG CELL  THUT TRUY LU THUT NG DN KHOA HC : TS NGUYN NG I - 2015 MỤC LỤC L .4 : GII THIU CHUNG 14 1.1 H thng 14 1.1.1 Lch s n ca h thng 14  17 1.1.3 Nhng v n t h ng .20 1.2 Nu 22 1.3 Kt lu .23 : M LP MIMO TRONG CELL .24 2.1 Gii thiu chung .24  thng MIMO 26 -MIMO 30 -SISO 31 -SIMO 31 -MISO 32 -MIMO 33 -MIMO 35 p MAC-MIMO .35 -MIMO 36 p MAC- MIMO 36 - MIMO 37 m c MIMO .37 m ca MIMO 37 2.m ca MIMO 37 m lp 38 i trm lp 39 2.3.1.1 Trm lp khuyn tip 40 2.3.1.2 Trm lp gin tip 40 m lp MIMO Cell 40 2.3.2.1 Trin khai trm lp c nh 40 2.3.2.2 Trin khai trm lng .41 2.3.2.3 Trin khai trm lp tm thi 42 2.3.2.3 Trin khai trm lp cho khu vc ngo 43 2.3.2.4 Trin khai trm lp cho khu v .44 2.3.2.5 Trin khai trm lp cho khu v 44 m c trm lp .45 m c trm lp .45 m c trm lp 46 ng trm lp MIMO Cell .46 t UE-RN 48 2.4.2 t RN-eNB 49 t eNB-RN 49 2.5 Kt lu .49 : TU KHIT M LP MIMO TRONG CELL 50 3.1 Gii thiu chung .50 3.2 Thuu khi t 52 3.2.1 Thuu khi u 52 3.2.1.2 Thuu khin  .53 3.2.1.3 Thung (Up-down) 55  thi ca thuu khi 55 3.2.2 Thup 59 3.2.3 Thui gin 62 3.3 Tu khim lp MIMO Cell 65 3.3.1 Tu khing trm lp AF MIMO 66  thm lp AF MIMO 67 3.3.1.2 Tu khi 70 3.3.1.3 Tu khi i RN 70 3.3.1.4 Tu khi i eNB 71 3.3.1.5 Kt qu t  .75 3.3.2 T t ching .77 3.3.3 T  u khi    t h thng MIMO Relay mt chiu hai chng, s dn tip song song .78 3.3.4 T  u khi    t h thng MIMO Relay mt chiu hai chn dit trc tip ngu .79 3.3.5 Tu khit cho h thng MIMO hai chiu, hai chng .80 t qu ng thc nghim .82 3.4.1 Tu khim lp AF MIMO tuy 82 t qu ng thc nghim 85 3.5 Kt lu .89 : KT LUN NGH  XUT 90 U THAM KHO 93 L c s k thu thc hin  c i s ng dn khoa hc ca TS Nguyn Ngt qu  u o t  cu khoa h N v sai phm bn quy ng    DANH M VIT TT ADC Analog Digital Converter ADSL Asymmetric Digital Subscriber Line AF Amplify and Forward AMPS Advance Mobile Phone Service AWGN Additive White Gaussian Noise BER Bit Error Rate BLAST Bell-Laboratories Layered Space-Time Code BPF Band Pass Filter BPSK Binary Phase Shift Keying BS Base Station CDM Code Division Multiplexing CDMA Code Division Multiple Access CMPT Coordinated Multi-Point Transmission CSI Channel State Information DAC Digital Analog Converter DAB Digital Analog Broadcasting D-BLAST Diagonal- Bell-Laboratories Layered Space-Time Code DF Decode and Forward DFT Discrete Fourier Transform DPSK Differential Phase Shift Keying DVB -H Digital Video Broadcasting - Handheld DVB -T Digital Video Broadcasting  Terrestrial EDGE Enhanced Data rates for GSM Evolution NB FDM N d B Division Multiplexing Frequency FDMA FEC Frequency Division Multiple Access Forward Error Correction FFT Fast Fourier Transform FIR Finite Impluse Response GPRS General Packet Radio Services GSM Global System For Mobile Communication HDSL Hight-bir-rate Digital Subscriber Line HSPA High Speed Packet Access I.I.D Independent and Identically Distributed ICI Inter Carrier Interference IDFT Inverse Discrete Fourier Transform IEEE Institute of Electrical and Electronics Engineers IFFT Inverse Fast Fourier Transform IS-136 Interim Standard 136 IS-95 Interim Standard 95 ISI InterSymbol Interference ITU International Telecom Union LAN Local Area Network LMMSE Linear Minimum Mean Sqare Error LOS Light Of Sight LPF Low Pass Filter LTE Long Term Evolution MI Mutual Information MIMO Multiple Input Muliple Output MU-MIMO Multi-User MIMO MISO Multiple Input single Output ML Maximum Likelihood MMSE Minimum Mean Sqare Error MMSE-IC MMSE-Interference Cancellation MRC Maximum Ratio Combiner MS Mobile Station MSE NLOS Mean Sqare Error Non Light Of Sight NMT450 Nordic Mobile Telephone 450 NTT Nipon Telegraph and Telephone OFDM Orthogonal Frequency Division Multiplexing OFDMA Orthogonal Frequency Division Multiple Access P/S Parallel to Serial PAPR Peak to Average Power Ratio PDC Personal Digital Cell Pdf Probability Density Function QAM Quadrature Amplitute Modulation QPSK Quadrature Phase Shift Keying RF Radio Frequency S/P Serial to Parallel SC Single Carrier Communication SD Source-to-Destination SDM Spatial Division Multiplexing SU- MIMO Single User MIMO SIMO Single Input Multiple Output SINR Signal to Interference plus Noise Ratio SR Source-to-Relay SISO Single Input Single Output STBC Space-Time Block Code STMLD Space-Time Maximum Likelihood Decoder SVD Singular Value Decomposition TACS Total Access Communication System TDMA Time Division Multiple Access TGn Task Group N V-BLAST Vertical-Bell-Laboratories Layered Space-Time WCDMA Wideband CDMA WIFI Wireless Fidelity WIMAX ZF World Interoperability Microwave Access Zero-Forcing ZF-OIC Zero-Forcing  Ordered Interference Cancellation       x, n, m, i Vec- x, s  H     P anten thu N,  M P, N, M (.) -1  H-1    E{.}  E{nnH} tr (.)   tr (H)  (.) H HH Hermitian   {      IK  IN 0N  0N hi,j  H h1,1 A = diag {a n}  M, C MxN N    C MAC CMAC   C BC CBC  ng thi truyn u khe thc ti trm lp c truyn chuyn tip i gian th  n bit d liu truyn cdo vy ti ngu  loi b nhiu ni ti t u nhc mic CSI Ngun Trung gian 1 H1r  H2r 𝒙  x G MS Hr1 MS F MS Hr2 MS W :Khe thi gian th nht :Khe thi gian th hai 10 khi ca h thng MIMO Relay tuy      mang li hiu qu ph   v   thng truy  c ti     c ti   n c   thng truyn ti khi ca mt mng chuyn tip MIMO hai chiu hai ch, si vi i = 1, biu th -n b i Mt s     u khi     ng trm lp AF MIMO hai chiu hai ch  tp trung ti  n hoc gim thiu l t t tu cun tip Trong c ng hp, mt thu lp d thut gim gra--i gii g ti  (G, F, W) thm i vi c ng hn tic s dng [17] Biu thc ti u khi t tn ti F = Q 1AQ2 (3.3.30) 81         t ma tr (Q 1, Q2 )  unitary nhc t   Q 1R1 = [       (3.3.31)  Q 2R2 = [     (3.3.32)    vi (R1,R 2)   t qu  ng thi t (G, W A) i bn ch    (G, W, A)  c dng g   c v thng chuyn tip mt chiu  c(G, F,W)  dng g b h thng chuyn ti khc phc, m thc s hc d tc l A (W, U)  xut u [8]   kt qu ng thc nghim 3.4.1 Tu khit tm lp AF MIMO tuy Trung gian 1  Ngun MR F1 MR   1 𝐇𝐬𝐝 x G MS  Trung gian K  MR FK 𝒙  W  :Khe thi gian th nht MR :Khe thi gian th hai 11  thng AF MIMO Relay mt chiu hai chng, tuy 82 ng trm l xuu t qu ng ph mt h thng truy MIMO-SDM [22] mt chiu hai ch truyn gi         Rayleigh phng, bi i chm, ma trn x   u t  m lp thc hi   c khuych i chuyn tip, n theo    -     ngu  x    xi   c truy anten th i cn eNB vi i = 1,2, ,MS  s anten, gi thit E{xx H} =    n gin eNB v n eNB vn ti       UE lH sd  H  H  sk    rkd  u n r , n d , n d l tn tip RN, ti khe thi gian th nh ti khe thi gian th hai Gi thit   t n Gaussian ph c lp th vi nhau,             E  E            bng Trong khe thi gian th nhu thu tu ti  trung gian RN th k l       Gi nh rng sau khe thi gian th nht K    ch chuyn tip RN th r n tip [14] Trong khe thi gian th huyn tip r thc hin khuy tuyu nhc bi ma trn Fr ri truyn vi m sut t P(F r ):   P(F r ) = tr          (3.4.3) u nhc ti gian th n tip th r            x+ y=  =      83 (3.4.5)     H@    𝐇   , n@ @     𝐇  (3.4.6) S d u tuy  nh nht MMSE (Minimum Mean Square Error) tu kt hp t i gian   c tnh:   = Wy = W( Hx +n) (3.4.8)  (3.4.9)   W1 W2  W =      AF MIMO Relay  3.4.10):  MSE ( F k, W 1, W2 ) = E -    (3.4.10) Gi3.4.10) bng vic chn mt F k nh t      t SD t RD  lc Wiener                 -              - (3.4.11) (3.4.12) (3.4.10)  - -                   84 F k     (3.4.3)         (3.4.14)          (3.4.15) C       ,               = diag     = diag     [4]            (3.4.16)      k = diag        (3.4.3) (3.4.13) 3. 3.4.17)  Min MSE (Fk) =                  (3.4.17)    s.t p(Fk) =     ) = PR (3.4.18) - Kuhn-             -                            T (x) + = max (x3.3.3.4.16)  3.   ch kt qu ng thc nghim Thc hing Monte-carlo t l l  s  hinhiu SNR2 c n ti nh t s u t n tn tip RN v SNR1 = 20dB c li c nh SNR2ng t l l s u SNR1 ci gi thit s n ting 85 nhau: MS= MR = MD = M  u nhc t s d Thc hi hin din cu ch QPSK 23] M r        k i ngu l suy gim ho kt hp v u ch 8-PSK  thuc BER  thng AF MIMO t SD 12  BER theo SNR 1=20dB 2 M S= M R= M D = M = 86 BER performance versus SNR 10 while fixing SNR =20dB, 8PSK, 4x4 ZF, without direct MMSE, without direct ZF, with direct MMSE, with direct -1 Average BER 10 10 10 -2 -3 -10 -5 10 15 20 25 SNR2 [dB] 13  BER theo SNR 1=20dB 2  - S= M R = MD = M = M BER performance versus SNR 10 while fixing SNR =20dB, N=4 ZF, without direct MMSE, without direct ZF, with direct MMSE, with direct Average BER 10 10 10 10 -1 -2 -3 -4 -10 -5 10 15 20 25 SNR [dB] 14  BER theo SNR 1 2=20dB  M S= MR = M D = M = 87 BER performance versus SNR while fixing SNR =20dB, 8PSK, N=4 10 ZF, without direct MMSE, without direct ZF, with direct MMSE, with direct -1 Average BER 10 -2 10 -3 10 -10 -5 10 15 20 25 SNR [dB] 15  BER theo SNR 1 2=20dB  S= M R = M D = M = M t qu biu di vi SNR 2,   BER theo SNR hai ng hp            da  hai -  gi ngun  t qu   nhn thy, tt cu                    li BER t  hin din ca tia truyn thng (LOS: Line of Sight) 88 3.5 Kt lu Vi m t ng trm lp MIMO cell, na lup trung u  thng trm lp MIMO, trm lp SU-MIMO m lp AF MIMO           u ti  u khin  t cho h thng AF MIMO Realy di gin nhm tu khit  ngu   n tip ng dng   thu ZF thay cho ng dng thu LMMSE tdsai s    o u gc t Do ng dng thu ZF c thc hi  suy gim  sai s MSE li ng dng thu LMMSE s ng anten tn tit Bi vy, lu   ng dng thu ZF tn khai thit k g ng anten  n tip, ti  n tip u qu nhiu da   i ng dng thu LMMSE ti n ti  lu t qu c u khin  t   ng trm l     m ti thiu sai s c tch  hin din ct SD Lu kt qu ng thc nghim ca mt s   s hin din ca  ngu, n c t qu ng hp ng du ZF  thu ch QPSK, i c BER theo SNR2 1=20dB, t  lu  kt qu     ng h u ch 8-PSK c     vi SNR12=20dB  minh hu khin  sut AF MIMO Relay 89  KT LUN N NGH  XUT                      (LTE Adavance)                       cho                 ,   nh D                  MIMO, OFDM/OFDMA, Relay   -    dung                                                     ,       MIMO, OFDM/OFDMA, Relay cho y    Cell,                   , Lu u ng m lp MIMO cell d  m truyn thngn cho t -MIMO, MU-n khai s dng trm lp nhm m r cho khu vc nhng khu v tri trm gm c 90 da h thng trm lp MIMO, Lun   t s thuu khi su trm lp .Lutp trung u tu khit ng trm lp  xut ng dng thut p, thui gi phc v tu khit cho h thng  ng  trm lp AF MIMO Cell, dm t s  t  s hin din c truyn trc tip t ngun t T tu  u khi t tn ti ca h thng AF MIMO Relay Kt qu u tu khing m lp MIMO Cell, c th hin qua vit qu ng bng thc nghim m ti thiu t l li thiu sai s   s u u SIR tn tip  hiu thu ZF, MMSE t bng  thu ch -PSK Pt qu tu khin t ng trm lp MIMO Cell c d n cu  (non-regenerative),  n          duplexng truyn dnh Rayleigh phng,  cch yu tp trung  thng MIMO Relay  hin din ca t trc tip SD gia ngu  tp trung  tn  hin din c  c tham s    NR  ng hp h thng c t  u khin t   hin din ct ngun- vng h c tu khi hin din ct t ngun t  thca vic tu khing MIMO Relay cell thcc chm tng Cell Ni dung luu hn ch  mi ch mi tc n t u khit m lp AF MIMO 91 Cell ru cho ng hp tng trm lp DF MIMO u  thuc t Do vn tip theo ca Lu   s tu m riu khin  tht h MIMO v   tin tin kh  OFDM/    -OFDMA Relay  c s  v  n t u khit, tng Cell, hn ch nhiu ng    h thng kt hp ng dng   tin tin mng th h mi LTE Advanced      92 U THAM KHO A Toding,                 in Proc 6th Int Conf.on Wireless Commun Networking and Mobile Computing (WiCOM), pp 1-4 Alan, E (1988), Eigenvalues and condition numbers of random matrices, SIAM J Matrix Anal Appl 9(4), 543560           - duplex  IEEE J Sel Areas Commun., vol 25, no 2, pp 379-389 Boyd, S.Vandenberghe, L.(2004), Convex Optimization, Cambridge University Press D Gesbert et al.(2003),  IEEE Journal Selected Areas in Communications, Volume: 21 , Issue: 3, pp 281  302 , N  (2008),    Fangni Chen (2013), "Optimal Design for MIMO Relay System," Journal of Signal and Information Processing, Published Online   Optimizing Wireles Communication Systems, Springer Science+Business Media, LLC, New York, N 10013, USA, pp.3-18 Principles of Mobile Communication, Kluwer Academic 11 K J Ray Liu, A K Sadek, W Su and A Kwasinski (2009), Cooperative Communication and Networking, Cambridge University Press 12 K.-J Lee, H Sung, E Park and I Lee.way MIMO AF multiple- IEEE Trans Wireless Commun, vol 9, no 12, pp 3671  3681 93           y and optimal precoding in MIMO multi- IEEE Trans.Inf Theory, vol 57, pp 2050  2069, Apr 2011 14 X.N Tran, V H Nguyen, T T Bui, and T C Dinh (2012), "Distributed Relay Selection for MIMO-SDM Cooperative Networks," IEICE Trans on Commun, vol E95-B(4), pp 1170-1179 15 O Munoz-          non-      IEEE Trans Signal Process., vol 55, no 6, pp 2593-2604 16 P W Wolniansky, G J Foschini, G D Golden, R A Valenzuela (1998),             URSI Int Symp on Signals, Syst., and Electron (ISSSE'98), Pisa, Italy, pp 295-300 -and-relay matrices for a non-regenerative two-       Commun., vol 10, no 5, pp 1645  1655 18 S.Yeh, O.  acity of multi-level amplifyand forward relay networks, 19 Saransh Malik, Sangmi Moon, Bora Kim, Cheolwoo You, Huaping Liu, Intae        lgorithm for AF, DF and DMF Relay Protocol in Multiuser MIMO Scenario Based on the LTE-Advanced System,       Algorithm, Springer Science+Business Media New York 20 Springer (2012), MIMO Communication for Cellular Networks, Springer Science +Business Media, LLC, 233 Spring Street, New York, NY10013, USA Pp11-82       -antenna Gaussian channels, European Transactions on Telecommunications Vol 10 (6), 585595 22 Vu D H Vu, Q T Do, X N Tran, V N Q Bao.(2013)," Improved Relay Selection for MIMO-SDM Cooperative Communication," Lecture Notes in Electrical Engineering, Springer, vol (240) pp 1170-1179 94 23         Design in Nonregenerative IEEE Communications Letters, Vol 12, No 7, pp.517-519 24 X Tang, Y Hua     -regenerative MIMO wireless IEEE Trans Wireless Commun., vol 6, no 4, pp 1398-1407, April 25             Proceedings of the 2010 Military Communications Conference, pp.99-104 26 Y Rong-hop MIMO relay systems with correlated IEEE Trans Wireless Commun., vol.10, pp 2835  2840 27 Non-regenerative Multicarrier MIMO   IEEE Transactions Signal Processing, Vol 57, No 12, pp 4837-4851 28          -hop MIMO IEEE Trans Wireless Commun., vol 8, pp 6068  6077 29     -regenerative Multicarrier MIMO Relay Communicat IEEE Transactions Commun, Vol 58, No 7, pp.1918-1923 30-hop MIMO IEEE Transactions Communications, Vol 59, No.10, pp 2896 31    -Advanced Relay Technology and Standardization, Signals and Communication Technology, Springer-Verlag Berlin Heidelberg, DOI: 10.1007/978-3-642-29676-5_2 32 Yuanfeng Peng, Youzheng Wang, (2012), The Optimal Joint Power Allocation Scheme and Antennas Design in AF MIMO Relay Networks Springer-Verlag, Berlin Heidelberg 95 ... Tu khi? ??m lp MIMO Cell 65 3.3.1 Tu khi? ??ng trm lp AF MIMO 66  thm lp AF MIMO. .. MAC- MIMO 36 - MIMO 37 m c MIMO .37 m ca MIMO 37 2.m ca MIMO. .. M LP MIMO TRONG CELL 50 3.1 Gii thiu chung .50 3.2 Thuu khi? ?? t 52 3.2.1 Thuu khi? ?? u