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Low complexity soft decision decoding technique for T-user collaborative coding multiple-access channels

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2 Author(s)
Ali, F. ; Dept. of Eng., Warwick Univ., Coventry, UK ; Honary, B.

The collaborative coding multiple-access (CCMA) scheme permits potentially efficient simultaneous transmission by several users sharing a common channel, without subdivision in time or frequency. A new low complexity soft decision decoding technique is introduced to make use of the CCMA error control capability. The proposed soft decision CCMA (SD CCMA) decoding algorithm for the T-user baseband CCMA adder channel is presented. Theoretical simulation results of the probability of error for a particular two-user CCMA scheme is also given using SD CCMA and hard decision (HD CCMA) decoding techniques.

Published in:

Electronics Letters  (Volume:27 ,  Issue: 13 )