Title :
Capacity bounds for a coded DS-CDMA system as a function of block size
Author :
Rivera, J. M Luna ; Cruickshank, D.G.M. ; Thompson, J.S.
Author_Institution :
Dept. of Electron. & Electr. Eng., Edinburgh Univ., UK
fDate :
6/23/1905 12:00:00 AM
Abstract :
This paper examines the capacity bounds for a direct sequence code division multiple access (DS-CDMA) system with forward error correction (FEC) coding in an additive white Gaussian noise (AWGN) channel. Using Shannon´s sphere-packing bounds, the capacity for this type of system as a function of the block size is shown. Furthermore, its analysis provides a comparison baseline for DS-CDMA communication channels. We compare these limits with the achievable capacity of a DS-CDMA system based on an iterative multiuser receiver (IMR)
Keywords :
AWGN channels; cellular radio; channel capacity; channel coding; code division multiple access; error statistics; forward error correction; spread spectrum communication; AWGN channel; FEC; Shannon sphere-packing bounds; additive white Gaussian noise; block size; capacity bounds; cellular radio; coded DS-CDMA system; communication channel capacity; direct sequence code division multiple access; forward error correction; AWGN; Additive white noise; Error probability; Forward error correction; Information rates; Information theory; Multiaccess communication; Robustness; Spread spectrum communication; Turbo codes;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Conference_Location :
Atlantic City, NJ
Print_ISBN :
0-7803-7005-8
DOI :
10.1109/VTC.2001.957125
