Diversity combining techniques for LDPC coded FFH/BFSK system over Rayleigh fading channel

Analysis of LDPC code in the FH system with partial‐band interference

“…Since the (3, 6)‐regular code has the best performance in the set of 1/2‐rate regular LDPC codes, and also has been widely employed on PBI channel [8–10], we take it as an example in the following sections and the thresholds of regular codes with other rates are presented in the Appendix. The SNR is fixed to 10 dB for SFH/BPSK system and changed to 20 dB for FFH/BFSK system in the simulations.…”

“…The performance of LDPC code for FFH/BFSK system with PBI is presented in [8, 9], and various diversity combining techniques are also discussed. In addition, the channel fading are involved in the FFH/BFSK system with PBI [10]. However, all the results of above literatures except [6, 7] are obtained by simulations of concrete codes, in other words, the performance bound (to be specific, the decoding threshold ) of LDPC codes in FH system with PBI has not been achieved yet.…”

The performance of LDPC coded FFH/BFSK system over Rayleigh fading channel under multitone jamming

“…So we will focus the practical combining techniques. The expression of LLR for various robust combining [7] is presented in Table I The performance simulation for LDPC coded FFH/BFSK system over Rayleigh fading channel under BMTJ is presented here. The (3,6)-regular LDPC code is employed based on progressive-edge-growth algorithm [9].…”

“…Four soft-decoding schemes in convolution/Turbo coded FFH/MFSK system over Rayleigh fading channel under BMTJ are proposed in [6]. The performance of LDPC coded FFH/BFSK system over Rayleigh fading channel with PBNJ is given in [7].…”