Next generation wireless systems and networks phần 2 pot
Next generation wireless systems and networks phần 2 pot
... waveform, and f(t)= 1 − |t| τ , |t|≤τ 0, |t| >τ ⇔ F(ω) = τ sin 2 ωτ 2 ωτ 2 2 (2. 19) where the base of the triangular pulse is 2 ,and f(t)= e − ( t τ ) 2 2 ⇔ F(ω) = τ √ 2 e (τ ω) 2 2 (2. 20) respectively. ... be FUNDAMENTALS OF WIRELESS COMMUNICATIONS 39 f(t) f(t) f(t) 1 1 1 F (w) = t sin (wt /2) wt /2 F (w) = t F (w) = t sin (wt /2) wt /2 2p t 2p t 4p...
Ngày tải lên: 09/08/2014, 19:22
Next generation wireless systems and networks phần 3 potx
... rate 38K 1 /24 1/5 9.6 76K 1/ 12 1/5 4.8 153K 1/6 1/5 2. 4 307K-2S 1/3 1/5 1 .2 307K-4S 16/49 16/49 2 614K-1S 2/ 3 1/3 1 614K-2S 32/ 49 16/49 1 912K 48/49 16/49 1 1.2M-1S 4/3 2/ 3 1 1.2M-2S 64/49 16/49 ... M-ary Walsh OVSF OVSF VSF 4·· 25 6 4·· 25 6 1···16 Carrier 2 GHz 2 GHz 2 GHz Modulation DL: QPSK, UL: BPSK DL: QPSK, UL: BPSK QPSK, 8PSK (2 Mbps) Bandwidth 1 .25 *2/ 3.75 *2...
Ngày tải lên: 09/08/2014, 19:22
Next generation wireless systems and networks phần 4 potx
... 161 20 01 20 02 2003 20 04 20 05 20 06E 20 07E 600 500 400 300 20 0 100 0 (millions) Analog/Other PDC TDMA CDMA WCDMA GSM Figure 3.17 Handset sale comparison for different 2 3G systems. IMT -20 00 candidate ... 1843 .2 2457.6 Modem QPSK QPSK QPSK QPSK QPSK QPSK QPSK 8PSK QPSK 16QAM 8PSK 16QAM Encoded 1 024 / 1 024 / 1 024 / 1 024 / 20 48/ 1 024 / 20 48/ 30 72/ 20 48/ 4096/ 30 7...
Ngày tải lên: 09/08/2014, 19:22
Next generation wireless systems and networks phần 6 pot
... time, and every active user is assigned a particular time slot in the Next Generation Wireless Systems and Networks Hsiao-Hwa Chen and Mohsen Guizani 20 06 John Wiley & Sons, Ltd 27 8 MULTIPLE ... infinite, and 26 2 ARCHITECTURE OF B3G WIRELESS SYSTEMS Reconfigurability and spectrum issues are changing the way wireless networks are planned. Planners are mind...
Ngày tải lên: 09/08/2014, 19:22
Next generation wireless systems and networks phần 10 pot
... standard, 29 8, 3 92 8 02. 16e standard, 389 8 02. 16h, 15, 389 8 02. 18, 366 8 02. 19, 370 8 02. 20, 24 9, 29 8 8 02. 22, 15, 29 8, 389, 391, 3 92, 393 8 02. 22 standard, 3 92 8 02. 22 working group, 389, 3 92 8 02. 22 WRAN, ... 383 8 02. 15.3, 303 8 02. 15.3a, 27 0, 29 7, 29 8, 303, 3 82, 383 8 02. 15.3a standard, 29 8 8 02. 15.3a wireless UWB standard, 384 8 02. 15.4, 29 8...
Ngày tải lên: 09/08/2014, 19:22
Next generation wireless systems and networks phần 5 ppt
... telecommunication services: PSTN and IP networks. Next Generation Wireless Systems and Networks Hsiao-Hwa Chen and Mohsen Guizani 20 06 John Wiley & Sons, Ltd 23 4 WIRELESS DATA NETWORKS • Up to eight ... Mbps, and in the late 1990s the Gigabit Ethernet was standardized Next Generation Wireless Systems and Networks Hsiao-Hwa Chen and Mohsen Guizani...
Ngày tải lên: 09/08/2014, 19:22
Next generation wireless systems and networks phần 7 ppt
... 322 MULTIPLE ACCESS TECHNOLOGIES FOR B3G WIRELESS + N − q − 1 T c − l − 1 λT c − NT c 2 − 1 2 σ 2 mp = K k =2 Q k q=1 L k l=1 β 2 1 w 2 k,q,l α 2 k,q,l 2N − NT c − 2 ( q − ... variables, that is, (n 1 ,n 2 ) ∼ (0,σ 2 I),soare(n 1 ,n ∗ 2 ) with its mean and variance being (n 1 ,n ∗ 2 ) ∼ (0,σ 2 I),where0 and I denote a 2 2 zero matrix and 2...
Ngày tải lên: 09/08/2014, 19:22
Next generation wireless systems and networks phần 8 docx
... Q(z) is defined as and Q(z) = ∞ z 1 √ 2 e − x 2 2 dx (9.19) and SNR = E b N 0 + N q + N j = E b N 0 + R 2 3 1 2 2B q 1 f IF + 4R 2 f IF 1 −exp( 2 2 f 2 IF σ 2 j ) (9 .20 ) 370 COGNITIVE ... the TV bands. The IEEE P8 02. 22 project, “Standard for Wireless Regional Area Networks (WRAN)-Specific requirements-Part 22 : Cognitive Wireless RAN MAC and PHY Speci...
Ngày tải lên: 09/08/2014, 19:22
Next generation wireless systems and networks phần 9 pps
... March, China RAN #27 , 9–11 March, Tokyo RAN #28 , 1–3 June, Quebec RAN #29 , 21 23 Sept, Tallin RAN #30 30 Nov 2 Dec, MT 20 06 20 05 Nov SA1 #30 24 28 Oct, Vancouver RAN 1 ,2, 3,4 Feb, TBD RAN 1 ,2, 3,4 May, ... Springer-Verlag, 1990. [ 32] R. Steele, Mobile Radio Communications, IEEE Press, 19 92. Next Generation Wireless Systems and Networks Hsiao-Hwa Chen and Mohsen G...
Ngày tải lên: 09/08/2014, 19:22
next generation wireless systems and networks
... 3.4 Italy 28 ,610,000 58,608,565 48.8 3.0 France 25 ,614,899 60,619,718 42. 3 2. 7 Brazil 22 , 320 ,000 181, 823 ,645 12. 3 2. 4 Russia 22 ,300,000 144,003,901 15.5 2. 4 Canada 20 ,450,000 32, 050,369 63.8 2. 2 Spain ... 15,300,000 21 9,307,147 7.0 1.6 Mexico 14,901,687 103,8 72, 328 14.3 1.6 Taiwan 13,800,000 22 ,794,795 60.5 1.5 Australia 13,784,966 20 ,507 ,26 4 67 .2 1.5 Neth...
Ngày tải lên: 03/06/2014, 01:05