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Concatenated coding for DS/CDMA transmission in wireless communications

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2 Author(s)
Y. F. M. Wong ; Center for Wireless Inf. Technol., Hong Kong Univ. of Sci. & Technol., Kowloon, China ; K. B. Letaief

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

Published in:

IEEE Transactions on Communications  (Volume:48 ,  Issue: 12 )