Title :
Concatenated coding for DS/CDMA transmission in wireless communications
Author :
Wong, Y. F Melanie ; Letaief, Khaled Ben
Author_Institution :
Center for Wireless Inf. Technol., Hong Kong Univ. of Sci. & Technol., Kowloon, China
fDate :
12/1/2000 12:00:00 AM
Abstract :
We investigate the use of forward-error correction (FEC) as well as concatenated coding for reliable data transmission in asynchronous direct-sequence code-division multiple-access communications over frequency-selective Rayleigh fading channels. The FEC scheme combines antenna diversity with low complexity concatenated codes which consist of a Reed-Solomon outer code and a convolutional inner code. Under this concatenated coding scheme, we analyze the average bit-error rate performance and capacity tradeoffs between various system parameters under a fixed total bandwidth expansion and concatenated codes constraint requirements
Keywords :
Rayleigh channels; Reed-Solomon codes; channel capacity; code division multiple access; concatenated codes; data communication; diversity reception; error statistics; forward error correction; multiuser channels; phase shift keying; spread spectrum communication; BER; BPSK; DS/CDMA transmission; FEC; Reed-Solomon outer code; antenna diversity; asynchronous multiple-access communications; average bit-error rate performance; binary phase-shift keying; capacity tradeoff; coded asynchronous DS/CDMA systems; concatenated coding; convolutional inner code; direct-sequence code-division multiple-access; forward-error correction; frequency-selective Rayleigh fading channels; low complexity concatenated codes; power controlled system; reliable data transmission; system parameters; total bandwidth expansion; wireless communications; Bandwidth; Bit error rate; Concatenated codes; Convolutional codes; Data communication; Fading; Frequency; Multiaccess communication; Performance analysis; Reed-Solomon codes;
Journal_Title :
Communications, IEEE Transactions on
