Next generation wireless systems and networks phần 3 potx

... 4.8 153K 1/6 1/5 2.4 30 7K-2S 1 /3 1/5 1.2 30 7K-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 1 1.8M 2 2 /3 1 2.4M 8 /3 2 /3 1 Table 3. 11 ... [425], CDMA2000 [34 5], TD-SCDMA [ 432 , 433 ], and so on. The basic technical parameters for three major 3G standards, that is, WCDMA, CDMA2000 and TD-SCDMA, are...

Ngày tải lên: 09/08/2014, 19:22

... 1024/ 2048/ 30 72/ 2048/ 4096/ 30 72/ 4096/ packet length (bits/ms) 26.67 13. 33 6.67 3. 33 6.67 1.67 3. 33 3 .33 1.67 3. 33 1.67 1.67 Code rate 1/5 1/5 1/5 1/5 1 /3 1 /3 1 /3 1 /3 1 /3 1 /3 1 /3 1 /3 No.ofslots1684241221 ... types 3 and 11 influence the procedure. There are three types of handovers specified in UMTS. (1) Intrafrequency handovers; (2) Inter- frequency hando...

Ngày tải lên: 09/08/2014, 19:22

... ) is the CCF of element codes A 1 and B 1 , R A 2 ,B 2 (τ ) is the CCF of element codes A 2 and B 2 , R A 3 ,B 3 (τ ) is the CCF of element codes A 3 and B 3 ,andR A,B (τ ) is the sum of R A 0 ,B 0 (τ ... wireless communication systems, exemplified by its applications in many impor- tant standards, such as IS-95 [31 7 34 4], CDMA2000 [34 5], UMTS-UTRA [425], WCDMA [ 431 ] and...

Ngày tải lên: 09/08/2014, 19:22

... telecommunication services: PSTN and IP networks. Next Generation Wireless Systems and Networks Hsiao-Hwa Chen and Mohsen Guizani  2006 John Wiley & Sons, Ltd 234 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

... CDMA system. Tables 7.2 and 7 .3 give two examples of the OC code sets obtained using the REAL approach. Figures 2 .33 and 2 .34 , given in Section 2 .3. 3, show how the ideal PACF and PCCF of two OC codes ... need to be synchronized in time, and every active user is assigned a particular time slot in the Next Generation Wireless Systems and Networks Hsiao-Hwa Chen and...

Ngày tải lên: 09/08/2014, 19:22

... channel, and g(τ) is the com- bined effect of the transmitter pulse-shaping and the receiver matched-filtering. Thus, the received Next Generation Wireless Systems and Networks Hsiao-Hwa Chen and Mohsen ... m-sequences [ 132 – 138 ], and so on, and orthogonal codes such as Walsh-Hadamard sequences [200–2 03] , OVSF codes, and so on. One of the most problematic MULTIPLE...

Ngày tải lên: 09/08/2014, 19:22

... various wireless applications, such as wireless regional area networks (WRANs), wireless metropolitan area networks (WMANs), wireless local area networks (WLANs), and wireless personal area networks ... in the same band (such as GPS, radar and satellite systems, and so on.), and the other being the mutual interference among unlicensed users (such as WLANs and Blue...

Ngày tải lên: 09/08/2014, 19:22

... kHz Sampling frequency 1.92 MHz (1/2 × 3. 84 MHz) 3. 84 MHz 7.68 MHz (2 × 3. 84 MHz) 15 .36 MHz (4 × 3. 84 MHz) 23. 04 MHz (6 × 3. 84 MHz) 30 .72 MHz (8 × 3. 84 MHz) FFT size 128 256 512 1024 1 536 2048 Number of occupied subcarriers a 76 ... nT c )dt  (C .3) Next Generation Wireless Systems and Networks Hsiao-Hwa Chen and Mohsen Guizani  2006 John Wiley & Sons, Lt...

Ngày tải lên: 09/08/2014, 19:22

... 14, 33 1, 35 9 CDMA, 14, 33 1 ,34 1 34 6, 34 8, 34 9, 35 2 35 9 CDMA scheme, 35 9 CDMA system, 33 1, 34 1 34 6, 34 8, 34 9, 35 2 35 5, 35 7 35 9 decoding, 34 5, 35 1 Gold code DS-CDMA, 35 6 Gold code DS-CDMA system, 35 6 MIMO ... INDEX Receiver (Rx), 13, 20, 27, 36 antenna, 20, 33 1 33 3, 33 5, 33 8 33 9, 35 3 35 8 based code, 89 based spreading code protocol, 88 beam-f...

Ngày tải lên: 09/08/2014, 19:22

... DS-CDMAUWBSystemPerformance 32 5 8 MIMO Systems 33 1 8.1 SIMO,MISOandMIMOSystems 33 1 8.2 SpatialDiversityinMIMOSystems 33 4 8.2.1 Diversity Combining Methods 33 4 8.2.2 Receiver Diversity 33 4 8.2 .3 Transmitter Diversity 33 6 8 .3 ... 2.4 Russia 22 ,30 0,000 144,0 03, 901 15.5 2.4 Canada 20,450,000 32 ,050 ,36 9 63. 8 2.2 Spain 15,565, 138 43, 435 , 136 35 .8 1.7 Indonesia 15 ,...

Ngày tải lên: 03/06/2014, 01:05