M-ary hyper phase-shift keying with Reed Solomon encoding and soft decision reliability information

Caldwell, J.; Robertson, C.

doi:10.1109/milcom.2009.5380034

Cited by 3 publications

(11 citation statements)

References 12 publications

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“…In [4] a novel decoding technique for RS codes was introduced that can extend the error correction capability of traditional RS HD decoding with much less complexity than the GS SD algorithm. Furthermore, hybrid HD/SD is capable of correctly significantly more symbol errors per block, even for high code rates, than the GS SD algorithm.…”

Section: Reed Solomon Hybrid Hard Decision-soft Decision Decodingmentioning

confidence: 99%

“…Since most decoding failures occur for only a few symbol errors in excess of the error correction capability of the HD decoder, the correction of a small number of additional symbol errors often leads to successfully decoding the received block. The complexity of the HD decoder is proportional to 2 log n n [7], and since SD reliability information is used only a small percentage of the time, then the computational complexity of hybrid HD/SD decoding is not significantly more than that of traditional HD decoding and is significant less than that of the GS SD decoding algorithm [4].…”

Section: Reed Solomon Hybrid Hard Decision-soft Decision Decodingmentioning

confidence: 99%

“…SD reliability information is computed as a matrix for all possible symbols at each code symbol location where each matrix element is given by [4] ( ) ( )…”

Section: Reed Solomon Hybrid Hard Decision-soft Decision Decodingmentioning

confidence: 99%

“…Hybrid HD/SD decoding is described in [4]. The simulation results that were presented utilized a maximum value of 9 2 permutations, but the simulation results in this paper are based on 10 2 permutations.…”

Section: Reed Solomon Hybrid Hard Decision-soft Decision Decodingmentioning

confidence: 99%

“…In [4] Reed Solomon (RS) forward error correction (FEC) coding in conjunction with M-ary hyper phase-shift keying (MHPSK) and hybrid hard decision-soft decision (HD/SD) decoding was considered in order to improve the robustness of a high spectral efficiency, non-linear satellite communications downlink. Since both ALE 2G and the Link-16/ Joint Tactical Information Distribution System (JTIDS) will be integrated into JTRS, this paper will present alternative waveforms for both using RS encoding, double-symbol 8-FSK, where two modulation symbols are used to transmit a single RS code symbol, and hybrid HD/SD decoding.…”

Section: Introductionmentioning

confidence: 99%

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Performance simulation and analysis of alternative Automatic Link Establishment and Link-16/JTIDS waveforms with Reed Solomon encoding and hybrid soft decision-hard decision decoding

Spyridis

Robertson

2010

2010 7th International Symposium on Wireless Communication Systems

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Hybrid hard decision-soft decision (HD/SD) decoding is a novel decoding technique for Reed Solomon (RS) codes. HD/SD decoding utilizes traditional hard decision RS decodingwhere the received block is either decoded correctly or a decoding failure exists. In the event of a decoding failure, channel reliability information is used to identify received code symbols with a low probability of being correctly received and to generate new code symbol estimates that are used in the traditional RS decoding algorithm. HD/SD RS decoding was developed for use with bandwidth efficient modulation schemes such as M-ary phase-shift keying and has been examined only in an additive white Gaussian noise (AWGN) environment. This paper presents the performance simulation and analysis of proposed alternative waveforms for Automatic Link Establishment and the Link-16/Joint Tactical Information Distribution System utilizing orthogonal signaling and Reed Solomon (RS) encoding. The proposed modulation scheme is double-symbol 8-FSK, where two modulation symbols are used to transmit a single RS code symbol, and hybrid HD/SD decoding. In addition to AWGN, the effects of pulse-noise interference (PNI) are considered. An interesting result is that hybrid HD/SD decoding has better performance and error correction capability than either traditional HD decoding or other RS SD techniques that have been examined in the literature, especially when PNI is present. The proposed alternative waveforms provide more robust communication links and increased throughput.

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Section: Reed Solomon Hybrid Hard Decision-soft Decision Decodingmentioning

confidence: 99%

Section: Reed Solomon Hybrid Hard Decision-soft Decision Decodingmentioning

confidence: 99%

“…SD reliability information is computed as a matrix for all possible symbols at each code symbol location where each matrix element is given by [4] ( ) ( )…”

Section: Reed Solomon Hybrid Hard Decision-soft Decision Decodingmentioning

confidence: 99%

Section: Reed Solomon Hybrid Hard Decision-soft Decision Decodingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Performance simulation and analysis of alternative Automatic Link Establishment and Link-16/JTIDS waveforms with Reed Solomon encoding and hybrid soft decision-hard decision decoding

Spyridis

Robertson

2010

2010 7th International Symposium on Wireless Communication Systems

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N-dimensional M-ary Constant Energy Modulation for Nonlinear Communications Channels

Romero

Heng

2019

2019 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)

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Performance simulation and analysis of M-ary frequency-shift keying with Reed Solomon encoding, coherent demodulation, and hybrid soft decision-hard decision decoding

Spyridis

Robertson

2010

2010 - Milcom 2010 Military Communications Conference

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All modern communication systems use some form of forward error correction coding. Generally, coding gain is improved when soft decision decoding is used instead of hard decision decoding. While soft decision decoding is a mature technology for convolutional codes, practical soft decision decoding for the commonly used Reed-Solomon (RS) non-binary block code has only recently been developed. Most of the developed SD decoding schemes are either applicable for low to medium code rates with high complexity or for channels that are far from q-ary symmetric. A hybrid hard decision-soft decision (HD/SD) decoding scheme was recently developed for use with bandwidth efficient modulation schemes such as M-ary phase-shift keying (MPSK). Since many communication systems use orthogonal modulation schemes such as M-ary frequency-shift keying (MFSK) for more robust communication links, this paper extends the HD/SD decoding scheme developed for bandwidth efficient modulation to orthogonal modulation. The performance simulation and analysis of MFSK with RS encoding, coherent demodulation, and hybrid HD/SD decoding are presented. The effect of noise other than additive white Gaussian noise, such as pulse-noise interference, is also considered. Furthermore, in our simulations we extend the size of the soft decision reliability information matrix from 9 2 to 10 2 in order to increase the possible decoding lists for hybrid HD/SD decoding.Index Terms-forward error correction coding, reliability information matrix, hard decision decoding, soft decision decoding, orthogonal signaling

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M-ary hyper phase-shift keying with Reed Solomon encoding and soft decision reliability information

Cited by 3 publications

References 12 publications

Performance simulation and analysis of alternative Automatic Link Establishment and Link-16/JTIDS waveforms with Reed Solomon encoding and hybrid soft decision-hard decision decoding

Performance simulation and analysis of alternative Automatic Link Establishment and Link-16/JTIDS waveforms with Reed Solomon encoding and hybrid soft decision-hard decision decoding

N-dimensional M-ary Constant Energy Modulation for Nonlinear Communications Channels

Performance simulation and analysis of M-ary frequency-shift keying with Reed Solomon encoding, coherent demodulation, and hybrid soft decision-hard decision decoding

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