Hybrid soft decision hard decision Reed Solomon decoding
MetadataShow full item record
Embodiments in accordance with the invention utilize Reed Solomon (RS) forward error correction (FEC) in conjunction with M-ary Bandwidth Efficient Modulation (BEM) schemes and soft decision decoding to improve the robustness of high spectral efficiency communication links. In one embodiment, information symbols in communication data blocks are encoded utilizing Reed Solomon (RS) forward error correction (FEC) coding and transmitted with either M-ary phase shift keying (MPSK) or M-ary quadrature amplitude modulation (MQAM). Using standard Reed Solomon (RS) hard decision decoding, a receiver either correctly decodes the received block or returns a decoding failure. In the event of a decoding failure, soft decision 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 Reed Solomon decoding algorithm.
Showing items related by title, author, creator and subject.
Spyridis, Konstantinos (Monterey, California. Naval Postgraduate School, 2010-06);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 ...
Performance analysis of an alternative link-16/JTIDS waveform transmitted over a channel with pulse-noise interference Cham, Kok Kiang (Monterey California. Naval Postgraduate School, 2008-03);The Joint Tactical Information Distribution System (JTIDS) is a hybrid frequency-hopped, direct sequence spread spectrum system that utilizes a (31,15) Reed-Solomon (RS) code and cyclical code-shift keying modulation for ...
Nikolakopoulos, Xenofon (Monterey, California. Naval Postgraduate School, 1997-03);The application of forward error correction coding to a fast frequency-hopped binary frequency-shift keying (FFH/BFSK) noncoherent receiver with self-normalization combining under broadband and partial-band jamming is ...