Nghiên cứu phát triển hệ thống truyền thông hỗn loạn sử dụng đa sóng mang879

B GIÁO DO I HC BÁCH KHOA HÀ NI NGUYN HU LONG NGHIÊN CU PHÁT TRIN H THNG TRUYN THÔNG HN LON S D LUN ÁN TIN S K THUT VIN THÔNG HÀ NI - 2017 B GIÁO DO I HC BÁCH KHOA HÀ NI NGUYN HU LONG NGHIÊN CU PHÁT TRIN H THNG TRUYN THÔNG HN LON S D Chuyên ngành: K thut vin thông Mã s: 62520208 LUN ÁN TIN S K THUT VIN THÔNG ng dn khoa h HÀ NI - 2017 L     rng ni dung c trình bày lun án thành qu nghiên cu ca bn thân sut thi gian làm nghiên cu sinh i s ch bo ca  ng dn khoa hc Các kt qu  c không trùng lp  ng xut hin công b ca tác gi khác  Các kt qu s liu c xác trung thc M i thơng tin trích dc lit kê rõ ràng  tài liu tham kho Tơi xin hồn tồn chu trách nhim v ni dung  kt qu lun án Hà Ni, ngày 10 tháng 04 7 Nghiên cu sinh Nguyn Hu Long LI C Tơi xin bày t  lịng bit c n ng dn khoa hc,  Yêm, n tình ch bo v mt chuyên môn, ng thi  ng viên rt nhi tơi có th hồn thành bn lun án i li cn TS Nguyn Xuân Quyni  h tr v nghiên cu sut thi gian làm nghiên cu sinh Tôi  xin c thy cô bn nghiên cu sinh  to m u kin thun cho tơi q trình hc tp nghiên cu ti Vin t-Vin thông Vin i hi hc Bách Khoa Hà Ni S dy bng viên khích l ca h ng lc mnh m   hoàn thành ni dung nghiên cu Cui ng lc to ln nht,   tâm chia s ca b m, anh ch c bit v hai ca  da vng chc cho sut trình làm nghiên cu hồn thành lun án Hà Ni, ngày 10 tháng 04 7 Nghiên cu sinh Nguyn Hu Long MC LC MC LC MC LC Danh mc thut ng vit tt Danh mc hình Danh mc bng M u 10 Truyn thông s dng hn lon 10 u ch ng d ng truyn thông hn lon 11 ng lc, mng, gii háp nghiên cu ca lun án 12 ng lc nghiên cu 12 Mc tiêu nghiên cu 13 ng nghiên cu 13 Gii hn nghiên cu 13 u 14 T chc ni dung ca lun án 14  16 Tng quan v truyn thông s dng hn lon 16 1.1 Gii thiu 16 1.2 Hn lom 16 1.3 Phát tín hiu hn lon lc nhiu 19 1.3.1 Thc thi hàm hn lon 19 1.3.2 Lc nhiu cho tín hiu hn lon 21 1.4 ng b tín hiu hn lon 22 1.4.1 ng b ng hn lon 22 1.4.2 ng b hn lon ng dng truyn thông 23 1.5 Các h thng thông tin hn long b  23 1.5.1 Các h th 24 1.5.2 Các h thng s 24 1.6 Các h thng thông tin hn long b 27 1.6.1 Các h thng t 28 1.6.2 Các h thng s 28 1.7 Các h thng thông tin hn lo 31 1.7.1 -DCSK) 31 MC LC 1.7.2 1.8 DCSK ghép kênh phân chia tn s trc giao (OFDM-DCSK) 33 Kt lun 35  36 H thng khóa dch hn lon vi sai - i chui tri ph lp 36 2.1 Gii thiu 36 2.2 Hn ch ca h thng truyn th xut 36 2.3 Thit k h thng RSS-MC-DCSK 37 2.3.1 Máy phát 37 2.3.2 Máy thu 40 2.4 Phân tích hi l li bit 42 2.4.1 2.4.2 ng bit trung bình 42 Biu thc BER 43 2.4.3 Tích phân s 45 2.5 Hiu su 48 2.6 Mô phng s so sánh hi 50 2.7 Kt lun 54  55 H thc giao s dng hn lon 55 3.1 Gii thiu 55 3.2 H thng OFDM xáo trn sóng mang hn lon 56 3.2.1 Ánh x Baker 56 3.2.2  h th xut 58 3.2.3 Hii bit ca h thng 59 3.2.4 Phân tích h s  63 3.3 -PSK/OFDM s dng tri ph trc tip hn lon 64 3.3.1 Máy phát máy thu 64 3.3.2 Kt qu mô phng 67 3.3.3 m bo mt 73 3.4 Kt lun 74 Kt lung phát trin 76 Ni dung kt qu c 76 i 77 MC LC ng phát trin 77 Danh m ca lun án 78 Bài báo tp chí hi ngh 78  tài nghiên cu tham gia 79 TÀI LIU THAM KHO 80 TÀI LIU TING VIT 80 TÀI LIU TING ANH 80 Danh mc thut ng vit tt Danh mc thut ng vit tt T vit tt Cm t ting Anh Cm t ting Vit 4G Fourth Generation Mng th h th  AWGN Additive White Gaussian №ise Nhiu Gausian trng cng BE Bandwidth Efficiency Hiu su BER Bit Error Rate T l li bit BPSK Binary Phase Shift Keying Khóa dch pha nh phân BW Bandwidth  CDSCDMA Chaotic Direct Sequence-Code Division Multiple Access p phân chia theo mã hn lon trc tip CDSK Correlation Delay Shift Keying Khóa dch tr  CDSSS Chaotic Direct-Sequence/Spread \ Tri ph chui trc tip s dng Spectrum chui hn lon CEF Complementary Error Function Hàm li bù CM-DCSK Continuous Mobility DCSK Khóa dch hn lon ng liên t c COOK CPF CPF CPM Chaotic On/Off Keying Chebyshev Polynomial Function Chebyshev Polynomial Function Chaotic Parameter Modulation Khóa tt/m hn lon c Chebyshev c Chebyshev u ch thông s hn lon CPPG Chaotic Pulse Position Generator Khi phát v trí xung hn lon CPPM Chaotic Pulse Position Modulation u ch v trí xung hn lon CPWPM Chaotic Pulse Width-Position u ch v trí- rng xung hn Modulation lon CSD Chaotic Symbolic Dynamics ng kí t hn lon CSK Chaos Shift Keying Khóa dch hn lon DBM Discretized Baker Map Ánh x Baker ri rc DCSK Differential Chaos Shift Keying Khóa dch hn lon vi sai DCSK/S Simplest Version of Enhanced DCSK ng phiên b gin nht DCSK-WC Differential Chaos Shift Keying-Walsh Codes Khóa dch hn lon vi sai-mã Walsh DDCSK- Differentially DCSK-Walsh Codes Khóa dch hn lon vi sai mã WC Walsh DSP Digital Signal Processing X lý tín hiu s DSSS Direct-Sequence Spread-Spectrum Tri ph chui trc tip DVB-T Digital Video Broadcasting- Truyn hình s qung bá mt Danh mc thut ng vit tt Terrestrial DWSCS Discrete Wheel-Switching Chaotic System H thng hn lon chuyn mchvòng ri rc EE Energy Efficiency Hiu sung FM-DCSK Frequency Modulated-Differential Khóa dch hn lon vi sai u tn Chaos Shift Keying FPGAs Field Programmable Gate Arrays Mng cng logic kh ng FSK Frequency Shift Keying Khóa dch tn s HE-DCSK High Efficiency-Differential Chaos Khóa dch hn lon vi sai-hiu Shift Keying  Improved-Differential Chaos Shift Khóa dch hn lon vi sai ci tin I-DCSK Keying ISI Intersymbol Interference Nhiu liên kí t LPI Low Probability of Intercept Xác sut b chn thp MA Multiple Access p MC-DCSK Multi Carrier-Differential Chaos Khóa dch hn lon a sóng Shift Keying mang MCM Multi-carrier Modulation u ch  NR-DCSK №ise reduction DCSK Khóa dch hn lon vi sai gim nhiu NRZ №n Return to Zero Không tr v không OFDM- Orthogonal Frequency Division Khóa dch hn lon vi sai ghép DCSK Multiplex- Differential Chaos kênh phân chia theo tn s trc Shift Keying giao Peak-to-Average Power Ratio T s công sunh trung PAPR bình P/S Parallel/Series Song song/ni tip PDF Probability Density Function Hàm m xác sut PG Processing Gain  li x lý PN Pseudo-random №ise Nhiu gi ngu nhiên PRBS Pilot Random Binary Sequence Chui nh phân ngu nhiên hoa tiêu PS-DCSK Phase Separated Differential Chaos Shift Keying Khóa dch hn lon vi sai chia pha P™ Pulse Time Modulation u ch thi gian xung PWL Piece Wise Linear Tuyn tính tn RBE Ration of Bandwidth Efficiency T l hiu su RBF Radial Basis Function n xuyên tâm REE Ratio of Energy Efficiency T l hiu sung RF Radio Frequency Tn s vô tuyn RM-DCSK Reference Modulated-Differential Chaos Shift Keying Khóa dch hn lon u ch tham chiu RSS Repeated Spreading Sequence Chui tri ph lp RSS-MC- Repeated Spreading Sequence- i chui tri DCSK Multicarrier-DCSK ph lp S/P Series/Parallel Ni tip/Song song SF Spreading Factor H s tri ph SNR Signal №ise Rate T s tín hiu tp âm SR-DCSK Short Reference DCSK Khóa dch hn lon vi sai tham chiu ngn SRRS Square-Root-Raised Cosine Cosin nâng c hai WLAN Wireless Local Access Network Mng truy nhp nôi b không dây WPAN Wireless Personal Access Network Mng truy nhp cá nhân không dây 72 H thc giao s dng hn lon 3.17 M = 3.18 u ki n kh ng u khác thông s qua kênh AWGN Fading; (c), (d) v qua kênh AWGN Fading          truyn thng  ,  s dng hàm  hin th H 3.17  vic s dng k  thut tri ph chui trc tip làm cho   h thng truyn thng BPSK-     BPSK-OFDM ng  Vi k  thut       th        -DSSS   -PSK/OFDM s dng tri ph trc tip hn lon      BPSK-DSSS lt   73              3.3.3 m bo mt  vic   hàm  phát   á hp l  thông tin v giá tr   xut, vic tách phát li t tín hiu kênh truyn         p thơng tin, bi     c nhân vi chui d liu c mang bi các con Bi scc bit cc tính hn lou kin kh mt sai s rt nh  dn khác bit hoàn toàn ca chui phát li 3.19 qua kênh AWGN Hình 3.18 mơ phng s ph thuc ca chịm tín hi  u kin kh ng  sai khác thông s gia bên phát bên thu sau gii tri ph c chia thành bn  bi 3.18(a) 3.18(b) Trong p trung t i mt 3.18(c) 3.18(  u kin khng Sai khác rt nh vi giá tr thông s s dn sai khác hoàn toàn vi c phát li chui tri ph, làm cho trình gii tri ph  li Kt qu hu hc khôi phu b li Hình 3.19 3.20 ch ng hp sai khác thông s khng kênh truyn   Có th thy r ng cong BER gm       i máy thu không   i  giá tr hp l c p thông tin, sai khác giá tr  thông s cho q trình dị, tách khơi 74 H thc giao s dng hn lon phc thông tin tht bc áp d ng tri ph hn lo o mt lp vt lý ca h thng H 3.20 qua kênh Rayleigh Fadin 3.4 Kt lun    tác gi   xut thc hin hai h thng thông tin   mang trc giao OFDM s dng hn lon   máy phát máy thu, nguyên lý hot ng, hi t  l li bit c t Có th thy t kt qu c  ý sau: (i) H thng OFDM v c xáo trn hn lo c tính ng ca hàm Baker ri rc th hi m vic gim t  s công su nh công su   ng thi  ng tính bo mt cho h thng,  vn gi c hi k thc nhm vn có c a h thng OFDM truyn thngc bit kh  loi b ng cn chng truyn thông (ii) H thng M-PSK/OFDM s dng tri ph chui hn lon-NRZ trc tip không nhng k  th    m ca h thng M-PSK/OFDM truyn thng vic u chnh t d liu linh hot vu ch M-PSK nâng cao hi       ng vi k  thut OFDM mà ci thin hiu kh o mt vi vic s dng tri ph hn lon (iii)  c nhng m trên, h thng  xut i tr giá bng s phc tp x lý u làm cho vi c thc thi h thng thc t tr nên     thy rng h thng c thit k 75 Kt lun nn tng x lý mu tín hiu s  vic thc thi có th c thc hin nn tng x lý s tín hiu vi CHIP kh trình t   u làm cho vic thc thi tr nên d dàng Tt c nhm  cp làm cho h th xut tr nên kh thi  tip tc nghiên cu phát trin ng ti ng dng vào h thng thông tin s thc t Các cơng trình cn nc cơng b báo tp chí s ba báo hi ngh quc t s t kê  trang 79 Kt lung phát trin 76 Kt lung phát trin Ni dung kt qu c Lu  xut thc hin h thng Khóa dch hn lon vi sai -  vi chui tri ph lp (RSS-MC-    u ch  c phát sóng mang mnh s dng chui hn lon l tri ph thông tin  máy phát máy thu, hi u su  ng hiu su       ca h thng qua kênh truyn AWGN Fading c    th thơng qua phân tích lý thuyt ki m chng li bng mô phng s Các kt qu c ch rng h th xuc hiu sung, hiu sui h thng MC-DCSK truyn thng S ci thic bing hp s ng sóng mang thp Khi s   c ci thin, nhiên s ci thin nh lúc giá tr thông s ca h thng MC-DCSK tin gn ti giá tr ca RSS-MC-DCSK Hai h thng thông tin c giao s dng hn lon sóng mang hn lon M-PSK/OFDM tri ph trc tip hn lo xut nghiên cu Tác gi       chi tit s  máy phát máy thu, nguyên lý hot ng, hi  t  l li bit qua kênh truyn nhiu trng fading Các kt qu t c cho thy rng h th xuu th hi n nhm so vi h thng truyn th  Th nht, h thng OFDM v   c xáo trn hn long ca hàm Baker r i rc có th gim t  s cơng sunh cơng sut trung bình ca tín hiu phát ng th  ng tính bo mt cho h thng Mt khác vn gi c hi     vi h thng OFDM truyn thng Th hai, h thng M-PSK/OFDM s dng tri ph chui hn lon-NRZ trc tip k tha  m ca h thng truyn th   du ch M-PSK có s u chnh linh hot t d  liu bi s mu ch; gim thiu ISI nâng cao hing s d ng k  thut OFDM Bên cc s dng tri ph hn lon không nhng ci thin BER qua kênh truyo mt h thng Các kt qu c C2  chng t rng n xut nghiên cu ca lun án hp lý cn thi t Vic la chn s kt hp gia k  thut truy   n lon nhm ci thin ch ng truyn thông qua kênh truyn thc t  va th hic tin ca lun án  t c nhng s ci thi n trên, h th xut phi tha hip bng s phc tp x lý làm cho vic thc thi h thng thc t tr        c m ca h th  xut so vi h thng truyn thng Tuy nhiên, vi vic thit k máy phát máy u hong nn tng x lý mu tín hiu s Kt lung phát trin 77 h th xut có th c thc thi d dàng bo mch x lý s tín hiu vi CHIP kh trình t  mi Cc ca lun án c th hin ni dung kt qu t c c ch  (i)  xut h thng thơng tin khóa dch hn lo dng chui tri ph lp RSS-MC-DCSK  , chu u ch  c phát sóng mang mnh chui hn lon l tri ph dòng bit d liu vào Phân tích lý thuyt mơ phng s cho hiu su ng, hi u su l li bit c thc hin Các kt qu    ch  c s ci thin so vi h thng MC-DCSK truyn th    c công b báo tp chí báo hi ngh quc t (cơng trình s s t kê  trang 79) (ii)  xut h thng thông c giao (OFDM) xáo trn sóng mang hn lon s dng hàm Baker r i rc S ci thin v t s cơng sunh cơng sut trung bình ca tín hi u phát kh o mu   ca h th  xut so vi h thng OFDM truyn thng  c chng t qua k t qu phân tích mơ phng N   c cơng b báo tp chí báo hi ngh quc t (cơng trình s s  lit kê  trang 79) (iii)  xut h thng u ch   c (M-     c giao (OFDM) s dng tri ph trc ti p chui hn lon NRZ Các kí t u ch M-c tri ph hn loc phát sóng mang OFDM Kt qu c ch rng h th xut ci thic hi truy   o mt d liu Nc công b vi báo hi ngh quc t  (cơng trình s s t kê  trang 79) ng phát trin Toàn b ni dung kt qu c lu r ng nghiên cu v s kt hp ciu ch  thut hn lon c i thi n chng ca h thng thông tin s kh thi ting phát trin thi gian t m rng h thng vi s dngng thi  th v kh o mt c xut Danh m ca lun án 78 Danh mc cơng trình  cơng b ca lun án Bài báo tp chí hi ngh Vu Van Yem and Nguyen Huu Long (2012)      r Navigation and Location Based Service (UPINLBS), doi: 10.1109/UPINLBS.2012.6409782 Vu Van Yem, Nguyen Xuan Quyen and Nguyen Huu Long (2012) the MxN-ary Chaotic Pulse Width and Position Modulation for Improving Bit Rate in Secure Digital  -Net Regional Conf on Manufacturing Engineering & 1st Human Factors and Ergonomics Society of the Philippines Conf., EDSA Shangri-La Manila, Philippines Nguyen Xuan Quyen, Nguyen Huu Long and Vu Van Yem (2014)-based Chaotic DSSS Communication System with M-    IEEE International Conference on Communications and Electronics (IEEE ICCE 2014), Danang-Vietnam, pp.106-111 Nguyen Huu Long, Nguyen Xuan Quyen and Vu Van Yem (2015)  Direct  In Proc International Conference on Advanced Technologies for Communications, HCM city-Vietnam, pp 588-593 Doan Thi Que, Nguyen Huu Long, Nguyen Xuan Quyen, Tony de Souza-Daw, Hoang Dung Nguyen, Thang Manh Hoang (2016)-Access Performance of Chaotic Bit Duration PN-     6th IEEE International Conference on Communications and Electronics (IEEE ICCE 2016), Halong BayVietnam, pp 609-613 Nguyen Huu Long, To Thi Thao, Vu Nhat Minh, Hoang Minh Son and Vu Van Yem (2016)                 T p chí khoa h c công ngh , s 114, pp 31-35 Nguyen Huu Long, Nguyen Xuan Quyen, To Thi Thao and Vu Van Yem (2016),  -Carrier Differential Chaos-Shift Keying System: Design and T p chí nghiên c u khoa h c Công ngh Quân s , s 45, pp 44-54 Nguyen Huu Long, Nguyen Xuan Quyen, Vu Van Yem (2017)    Improved Multi-      2017 International Conference on Signal Processing, Telecommunications and Computing (SigTelCom2017), Danang-Vietnam, pp 211-216 Danh m ca lun án 79  tài nghiên cu tham gia  tài nghiên cu khoa h    Nghiên cu phát trin u ch thi gian xung hn lon cho h thng thông tin s: 102.02-2012.34, thi gian thc hin: 2013-2015, vai trò: thành viên thc hin 80 TÀI LIU THAM KH O TÀI LIU THAM KHO TÀI LIU TING VIT [1] [2] Quy      u ch tri ph chui trc tip s dng thi gian xung hn lon cho thông tin s," Lun án Tii hc Bách Khoa Hà Ni, 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