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一种新的22n+1阶QAM星座图设计

吴毅凌 李红滨 赵玉萍

吴毅凌, 李红滨, 赵玉萍. 一种新的22n+1阶QAM星座图设计[J]. 电子与信息学报, 2010, 32(6): 1510-1514. doi: 10.3724/SP.J.1146.2008.00865
引用本文: 吴毅凌, 李红滨, 赵玉萍. 一种新的22n+1阶QAM星座图设计[J]. 电子与信息学报, 2010, 32(6): 1510-1514. doi: 10.3724/SP.J.1146.2008.00865
Wu Yi-ling, Li Hong-bin, Zhao Yu-ping. A Novel Constellation Design for 22n+1-QAM[J]. Journal of Electronics & Information Technology, 2010, 32(6): 1510-1514. doi: 10.3724/SP.J.1146.2008.00865
Citation: Wu Yi-ling, Li Hong-bin, Zhao Yu-ping. A Novel Constellation Design for 22n+1-QAM[J]. Journal of Electronics & Information Technology, 2010, 32(6): 1510-1514. doi: 10.3724/SP.J.1146.2008.00865

一种新的22n+1阶QAM星座图设计

doi: 10.3724/SP.J.1146.2008.00865

A Novel Constellation Design for 22n+1-QAM

  • 摘要: 该文研究了22n+1阶正交幅度调制(Quadrature Amplitude Modulation,QAM)的星座图,提出了一种可以根据格雷映射规则建立映射表的正方形QAM星座图。为了对比正方形星座图与十字形以及矩形星座图的性能,该文以32 QAM为例对3种星座图的信号功率效率进行了分析,并对三者的误码性能进行了仿真。仿真结果表明,与信道编码结合使用时,正方形星座图的误码性能优于十字形星座图和矩形星座图。而且,对于多载波通信系统,正方形星座图和十字形以及矩形星座图具有相同的信号功率效率。
  • Svensson A. An introduction to adaptive QAM modulation schemes for known and predicted channels [J].Proceedings of the IEEE.2007, 95(12):2322-2336[2]Conti A, Win M Z, and Chiani M. Slow adaptive M-QAM with diversity in fast fading and shadowing [J].IEEE Transactions on Communications.2007, 55(5):895-905[3]Keying J. Odd-bit quadrature amplitude-shift [J].IEEE Transactions on Communications.1975, 23(3):385-389[4]Agrell E, Lassing J, and Strom E G, et al.. On the optimality of the binary reflected Gray code [J].IEEE Transactions on Information Theory.2004, 50(12):3170-3182[5]Agrell E, Lassing J, and Strom E G, et al.. Gray coding for multilevel constellations in Gaussian noise [J].IEEE Transactions on Communications.2007, 53(1):224-235[6]European Telecommunications Sdandards Institute (ETSI), EN 300 429 Version 1.2.1, Digital Video Broadcasting (DVB): Framing structure, channel coding and modulation for cable systems, 650 Route des Lucioles - Sophia Antipolis Valbonne - FRANCE, ETSI, Apr., 1998.[7]Vaezi M, Mirzaee A, and Safavi S M. Power-efficient M-QAM signal constellations to reduce the PMEPR in OFDM systems [C][J].IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, Berlin, Germany.2005, 2:1135-1139[8]Hou Hsin-An. Modified 128-QAM constellation schemes allowing low complexity non-data-aided carrier recovery [C][J].IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, Berlin, Germany.2005, 4:2557-2561[9]Vitthaladevuni P K, Alouini M S, and Kieffer J C. Exact BER computation for cross QAM constellations [J].IEEE Transactions on Wireless Communications.2005, 4(6):3039-3050[10].
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出版历程
  • 收稿日期:  2008-07-07
  • 修回日期:  2010-04-24
  • 刊出日期:  2010-06-19

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