Reed-Solomon and Simplex Codes for Peak-to-Average Power Ratio Reduction in OFDM

New schemes for peak-to-average power ratio reduction in orthogonal frequency-division multiplexing (OFDM) systems are proposed. Reed-Solomon (RS) and simplex codes are employed to create a number of candidates, from which the best are selected. Thereby, in contrast to existing approaches, the codes...

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Veröffentlicht in:IEEE transactions on information theory Jg. 55; H. 4; S. 1519 - 1528
Hauptverfasser: Fischer, R.F.H., Siegl, C.
Format: Journal Article
Sprache:Englisch
Veröffentlicht: New York, NY IEEE 01.04.2009
Institute of Electrical and Electronics Engineers
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Schlagworte:
Added delay
Antennas
Applied sciences
Approximation
Automatic repeat request
Channel coding
Channels
Code Division Multiple Access
Coding
Coding, codes
Communication channels
Data transmission
Decoding
Delay
Exact sciences and technology
Frequency division multiplexing
Gain
Information theory
Information, signal and communications theory
Multiplexing
OFDM
Orthogonal Frequency Division Multiplexing
Orthogonal frequency-division multiplexing (OFDM)
Packet transmission
Peak to average power ratio
peak-to-average power ratio (PAR) reduction
Reduction
Redundancy
Reed-Solomon (RS) code
Reed-Solomon codes
Signal and communications theory
Signal mapping
Signal representation. Spectral analysis
Signal representations
Signal, noise
simplex code
Telecommunications and information theory
Reed Solomon code
Performance evaluation
Packet switching
Similarity
Redundancy
Peak to average power ratio
Mapping
Decoding
Signal representation
Channel coding
Orthogonal frequency-division multiplexing (OFDM)
peak-to-average power ratio (PAR) reduction
Reed―Solomon (RS) code
Orthogonal frequency division multiplexing
Selection criterion
Numerical simulation
Delay time
simplex code
Antenna array
Automatic repeat request
ISSN:0018-9448, 1557-9654
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Beschreibung
Zusammenfassung:New schemes for peak-to-average power ratio reduction in orthogonal frequency-division multiplexing (OFDM) systems are proposed. Reed-Solomon (RS) and simplex codes are employed to create a number of candidates, from which the best are selected. Thereby, in contrast to existing approaches, the codes are arranged over a number of OFDM frames rather than over the carriers, hence a combination of the principles of multiple signal representation with selection (as done in selected mapping) and the use of channel coding is present. In particular, in multiple-antenna transmission, the proposed schemes do not cause any additional delay, but due to the utilization of the dimension space, additional gains can be achieved. Moreover, the schemes are very flexible; due to the selection step, any criterion of optimality can be taken into account. Besides multiple-antenna transmission, packet transmission is briefly considered, which, moreover, covers the appealing similarities with incremental redundancy check schemes in automatic repeat request (ARQ) applications and with decoding of codes transmitted over the erasure channel. The performance of the schemes is (using some approximations) derived analytically and is covered by numerical results that are in very good agreement with the theory. Significant gains can be achieved with these very flexible and versatile methods.
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ISSN:0018-9448
1557-9654
DOI:10.1109/TIT.2009.2013000