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Soft decoding of algebraic-geometric codes using Koetter-Vardy algorithm

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2 Author(s)
L. Chen ; Newcastle University, Newcastle-upon-Tyne, United Kingdom ; R. A. Carrasco

The first soft-decision decoding algorithm for algebraic-geometric codes is presented. This algorithm is developed based on the Koetter-Vardy algorithm, which was proposed for the decoding of Reed-Solomon codes. The interpolation process is modified by redefining the zero condition of a trivariate polynomial and introducing complexity reducing methods. Simulation results show that 0.7 and 1.7-dB performance improvements over the hard-decision decoding bound can be achieved in AWGN and quasi-static Rayleigh fading channels, respectively.

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Electronics Letters  (Volume:45 ,  Issue: 25 )