Channel Coding Aspects in an OFDM-CDMA System

Authors: V. Kühn, A. Dekorsy, K.-D. Kammeyer
Abstract: This paper investigates coding aspects in an OFDM-CDMA environment. The inherent bandwidth expansion in CDMA systems offers many possibilities for the application of powerful codes with low code rates. Three different coding strategies are under consideration: the combination of convolutional and repetition codes (conventional CDMA system), a code-spread system consisting of one very low rate convolutional code, and a serial concatenation of convolutional, Walsh and repetition code. Analytical and simulation results turn out that the Walsh coded system is the best choice among the considered scenarios.
Document type: Conference Paper
Publication: Munich, Germany}, 17. - 19. January 2000
Conference: 3rd ITG Conference Source and Channel Coding (SCC 2000)
Index: 85
SCC_2000_kühn.pdf109 KBSCC_2000_kü KB
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