Title :
CDMA wireless communication systems with FEC
Author_Institution :
Dept. of Radio Tech., Univ. of Electron. Sci. & Technol. of China, Sichuan, China
Abstract :
The paper estimates the capacity of SSMA communications. A DS/SSMA transmission model is analyzed to obtain the output signal to noise ratio (SNR) of a receiver, the result is modified to count in the interference from adjacent cells. Using a multiple cell pattern and the propagation in micro cells, the average SNR at a mobile unit is obtained also. The two results show a close approximation for the capacity of a cell. The voice activity factor, cell sectorization, and FEC are considered in SSMA. The values show that the cellular SSMA system can provide greater capacity than traditional FDMA or TDMA systems
Keywords :
cellular radio; channel capacity; code division multiple access; error correction codes; radiofrequency interference; spread spectrum communication; CDMA wireless communication systems; DS-SS system; DS/SSMA transmission model; FEC; SNR; SSMA communications; adjacent cells; capacity; cell sectorization; cellular radio; forward error correction; interference; micro cells; mobile unit; multiple access; multiple cell pattern; propagation; receiver; signal to noise ratio; spread spectrum; voice activity factor; Delay; Fading; Frequency division multiaccess; Interference; Mobile communication; Multiaccess communication; Signal to noise ratio; Spread spectrum communication; Time division multiple access; Wireless communication;
Conference_Titel :
Singapore ICCS/ISITA '92. 'Communications on the Move'
Print_ISBN :
0-7803-0803-4
DOI :
10.1109/ICCS.1992.255006
