Adaptive Modulation and Coding Schemes Based on LDPC Codes with Irregular Modulation

In this paper we propose an adaptive modulation and coding (AMC) scheme which uses only a single low-density parity-check (LDPC) encoder/decoder with irregular modulation. Two Gray-mapped quadrature-amplitude modulations are employed within a codeword so that the transmission rates of the proposed A...

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Vydáno v:	IEEE transactions on communications Ročník 58; číslo 9; s. 2465 - 2470
Hlavní autoři:	Ahn, Seok-Ki, Yang, Kyeongcheol
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	New York, NY IEEE 01.09.2010 Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:	Adaptive modulation and coding (AMC) Applied sciences Coders Coding Coding, codes Constellation diagram Decoders Encoders Encoding Exact sciences and technology Information, signal and communications theory irregular modulation low-density parity-check (LDPC) codes Mapping Modulation Modulation, demodulation Parity check codes Reliability Signal and communications theory Signal to noise ratio Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Transmission and modulation (techniques and equipments) Performance evaluation Quadrature amplitude modulation Mapping Overmodulation Adaptive coding Codec low-density parity-check (LDPC) codes Numerical simulation Adaptive modulation and coding (AMC) Error correcting code Parity check codes Transmission rate Adaptive modulation irregular modulation Modulation coding Parity check
ISSN:	0090-6778, 1558-0857
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