Multi-Level Threshold Control Decoding Scheme for RS codes in FH/SSMA Systems with MFSK signaling

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 MFSK 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 criteria for the erasure decision threshold are suggested in such a way that channel throughput can be maximized. Numerical results show that the proposed multi-level threshold control decoding scheme yields a higher throughput over a conventional decoding cases