Performance of a OFDM-CDMA system with orthogonal convolutional coding and interference cancellation

The performance of an OFDM-CDMA system with convolutional coding and interference cancellation is presented. The OFDM-CDMA receiver uses equal gain combining on the carriers before the received signal is passed to the interference canceller. Within the interference canceller, the interference estima...

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Bibliographic Details
Published in1997 IEEE 47th Vehicular Technology Conference. Technology in Motion Vol. 2; pp. 860 - 864 vol.2
Main Authors Stirling-Gallacher, R.A., Povey, G.J.R.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1997
Subjects
Bandwidth
Channel coding
Convolution
Convolutional codes
Decoding
Diversity reception
Interference cancellation
Multiaccess communication
OFDM
Viterbi algorithm
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Summary:The performance of an OFDM-CDMA system with convolutional coding and interference cancellation is presented. The OFDM-CDMA receiver uses equal gain combining on the carriers before the received signal is passed to the interference canceller. Within the interference canceller, the interference estimates are improved by Viterbi decoding before being subtracted from the wanted signal. Both orthogonal and super orthogonal coding are considered and their performance is compared against a 3/4 rate K=7 punctured convolutional code. A comparison is made of the spectral efficiencies of the different schemes.
ISBN:9780780336599
0780336593
ISSN:1090-3038
2577-2465
DOI:10.1109/VETEC.1997.600451