NDLI: Performance of Reed-Solomon coded M-ary modulation systems with overlapped symbols

Content Provider	IEEE Xplore Digital Library
Author	Kar-Peo Yar Stark, W.E.
Copyright Year	2005
Description	Author affiliation: Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI (Kar-Peo Yar; Stark, W.E.)
Abstract	We analyzed the bit error probability of a single RS codeword with symbol overlapping. By symbol overlapping, we mean that the bits in each modulation symbol can belong to 2 or more RS symbols and vice versa. We propose two novel designs for Reed-Solomon (RS) coded modulation with symbol overlapping. For an RS code with symbol size $GF(2^{n}),$ the information bits are first RS coded. For the first strategy, the coded bits are matrix interleaved prior to modulation and for the second strategy, the RS symbols are matrix interleaved and the resulting coded symbols are shifted circularly by n/2 bits prior to modulation. In this paper, we considered a M = $2^{n}-ary$ modulation scheme. The received signal is demodulated appropriately, de-interleaved and RS decoded. The decoded symbols are interleaved and sent to the demodulator where it makes use of the decoded symbols from other codewords to re-demodulate the signals. This process is repeated until there is no improvement in the bit error rate. It is observed that this simple coded modulation design scheme has about 0.5 dB better performance than one that does not employ symbol overlapping over an AWGN channel at bit error rate of $10^{-3}.$ An improvement of 1 dB is observed over a Rayleigh fading channel
Starting Page	364
Ending Page	370
File Size	5004929
Page Count	7
File Format	PDF
ISBN	0780393937
DOI	10.1109/MILCOM.2005.1605711
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-10-17
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Reed-Solomon codes Modulation coding Error correction codes Decoding Performance analysis Bit error rate Bandwidth Energy efficiency Error analysis Error probability
Content Type	Text
Resource Type	Article

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