earticle

영어

In this paper, we propose an effective error and erasure decoding scheme with multi-level erasure-decision threshold for Reed-Solomon (RS) codes in frequency-hopped multiple-access communications with M-ary FSK signaling, and analyze its performance.RS coding is used to correct erasures and errors caused by other-user interference and thermal noise. The proposed decoder decides whether to erase the received RS code symbol based on the erasure decision threshold. The decision formulas for the optimal erasure decision threshold are derived in such a way that packet error probability can be minimized. Numerical results show that the proposed multi-level threshold control decoding scheme yields a higher throughput over a conventional decoding cases.