Error and Erasure Decoding Scheme for RS Codes in MFSK based FH/SSMA Communication

Abstract

In this paper, we propose an effective error and erasure decoding scheme with multilevel 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.

Analysis of Iterative Erasure Insertion and Decoding of FH/MFSK Systems without Channel State Information

“…To recover information from the contaminated signals, various channel codes have been applied with an interleaver [1]. In many previous studies [2][3][4][5][6][7][8][9][10][11], erasure insertion schemes with an error and erasure decoder have been used to increase system reliability under this kind of jamming. The main aim of erasure insertion is to erase the corrupted received symbols (or dwells) using the threshold test.…”