期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

多用户OFDM系统子载波比特分配算法 被引量：3

Subcarrier-Bit Allocation Algorithm in Multiuser OFDM System
下载PDF
导出
摘要 针对多用户正交频分复用(OFDM)系统功率优化问题,提出一种高效的子载波、比特分配算法.该算法基于最小化-最大者(Min-Max)的原则逐个分配子载波,使用户功率递减;采用注水原理分配比特,使用户功率最小化;最后使用贪婪算法将分配比特取整,以实现系统功率最小化的目标.理论分析和仿真结果表明,本算法有效地降低了系统发射功率和运算复杂度. A scheme of subcarrier-bit allocation is proposed for power optimization in multiuser orthogonal frequency division multiplexing（OFDM）system. The scheme allocates the subcarriers to reduce the power of users with the principle of Min-Max, and allocates the bit by water-filling to minimize the power of users. Finally the bit is rounded by greedy algorithm to obtain the minimized total transmit power of the system. Analysis and simulation results show that the performance is improved but with low complexity.
作者 杨睿哲 袁超伟 丁义 杨奎
机构地区 北京邮电大学通信网络综合技术研究所 德州学院计算机科学与技术系 中国网通北京分公司
出处 《北京邮电大学学报》 EI CAS CSCD 北大核心 2008年第4期112-116,共5页 Journal of Beijing University of Posts and Telecommunications
基金 国家自然科学基金项目(60672132)
关键词 多用户正交频分复用 子载波、比特分配 最小化-最大者 multiuser orthogonal frequency division multiplexing subcarrier-bit allocation Min-Max
分类号 TN911.22 [电子电信—通信与信息系统]
  • 相关文献

参考文献9

  • 1Jang J, Lee K B. Transmit power adaptation for multiuser OFDM systems[J]. IEEE Journal on Selected Areas in Communications, 2003, 21(2): 171-178.
  • 2Yu Guanding, Zhang Zhaoyang, Chen Yan, et al. Subcarrier and bit allocation for OFDMA systems with proportional fairness[ C]//IEEE WCNC. NY: IEEE Inc, 2006: 1717-1722.
  • 3王晏君,陈前斌,邝育军.基于RA准则的多用户OFDM自适应资源分配算法改进[J].应用科学学报,2007,25(1):21-25. 被引量：3
  • 4丁乐,殷勤业,邓科,孟银阔.一种无线OFDM系统中的高效功率和比特分配算法[J].电子与信息学报,2007,29(7):1537-1541. 被引量：7
  • 5Wong C Y, Cheng R S, Letaief K B, et al. Multiuser OFDM with adaptive subcarrier bit and power allocation [J]. IEEE Journal on Selected Areas in Communications, 1999, 17(10): 1747-1758.
  • 6Zhou Kainan, Chew Y H. Heuristic algorithms to adaptive subcarrier-and-bit allocation in multiclass multiuser OFDM systems[C]//IEEE VTC. NJ: IEEE Piscataway, 2006: 1416-1420.
  • 7Zhang Guodong. Subcarrier and bit allocation for realtime services in multiuser OFDM systems[C] //IEEE ICC. NJ: IEEE Piscataway, 2004: 2985-2989.
  • 8Yu Guanding, Zhang Zhaoyang, Chen Yan. A novel resource allocation algorithm for real-time services in multiuser OFDM systems[ C]//IEEE VTC. NJ : IEEE Piscaraway, 2006: 1156-1160.
  • 9佟学俭 罗涛.OFDM移动通信技术原理与应用[M].北京:人民邮电出版社,2005..

二级参考文献16

  • 1SHEN Zukang,ANDREWS J G,EVANS B L.Optimal power allocation in multiuser OFDM systems[C]//IEEE Global Telecommunications Conference (GLOBECOM ' 03).Texas:2003:337-341.
  • 2LAWREY E.Multiuser OFDM[C]//Proceedings of the Fifth International Symposium on Signal Processing and Its Applications.1999.8:761-764.
  • 3JANG J,LEE K B.Transmit power adaptation for multiuser OFDM systems[J].IEEE Journal on Selected Areas in Communications,2003,21(2):171-178.
  • 4WONG I C,SHEN Zukang,EVANS B L,ANDREWS J G.A low complexity algorithm for proportional resource allocation in OFDMA systems[C]//IEEE Workshop on Signal Processing Systems.2004:1-6.
  • 5GOLDSMITH A J,CHUA Soon-Ghee.Variable-rate variablepower MQAM for fading channels[J].IEEE Transactions on Communications,1997,10:1218-1230.
  • 6CHUANG S T,GOLDSMITH A J.Degrees of freedom in adaptive modulation:a unified view[J].IEEE Trans on Communications,2001,49(9):1561-1571.
  • 7RHEE W,CIOFFI J M.Increase in capacity of multiuser OFDM system using dynamic subchannel allocation[C]//IEEE Vehicular Technology Conference (VTC' 2000).2000:1085 -1089.
  • 8SEO H,LEE B G.A proportional-fair power allocation scheme for fair and efficient multiuser OFDM systems[C]//IEEE Global Telecommunications Conference (GLOBECOM ' 04).2004.12:3737-3741.
  • 9Prince K,Krongold B and Dey S.A framework for efficient rate-power allocation for OFDM in a composite-fading enviroment.Proc.ICC'2005,Seoul,Korea,May 2005:2558-2562.
  • 10Jang Jiho,Lee Kwang Bok,and Lee Yong-Hwan.Transmit power and bit allocation for OFDM systems in a fading channel.Proc.IEEE GLOBECOM'2003,San Francisco,USA,Dec 2003,2:858-862.

共引文献13

同被引文献24

  • 1李海花,曹铮.提供固定业务和移动业务的IMS[J].电信科学,2006,22(4):42-44. 被引量：4
  • 2Sendonaris A, Erkip E, Aazhang B. User cooperation diversity-part Ⅰ: system description [ J ]. IEEE Trans Commun, 2003, 51(11): 1927-1938.
  • 3Sendonaris A, Erkip E, Aazhang B. Increasing uplink capacity via user cooperation diversity [ C] // ISIT1998. Cambridge: IEEE Press, 1998: 156.
  • 4Laneman J N, Wornell G W, Tse D N C. An efficient protocolfor realizing cooperative diversity in wireless networks[C]//ISIT2001. Washington: IEEE Press, 2001: 294.
  • 5Hunter T E, Nosratinia A. Cooperation diversity through coding[C.]//ISIT2002. Lausanne: IEEE Press, 2002: 220.
  • 6Jang J, Lee K B. Transmit power adaptation for multiuser OFDM systems[J]. IEEE Journal on Selected Areas in Communications, 2003, 21(2): 171-178.
  • 7Shen Z, Andrews J G, Evans B L. Adaptive resource allocation in multiuser OFDM systems with proportional rate constraints[J ]. IEEE Transactions on Wireless Communications, 2005, 4(6): 2726-2737.
  • 8Suh C, Hwang C S. Dynamic subchannel and bit allocation for multicast OFDM systems[ C] //PIMRC 2004. Barcelona, Spain: IEEE Press, 2004: 2102-2106.
  • 9Suh C, Mo J. Resource allocation for multicast services in multicarrier wireless communications [ C ] // INFOCOM 2006. Barcelona: IEEE Press, 2006: 1-12.
  • 10Won H, Cai H, Eun D Y, etal. Multieast scheduling in cellular data networks [ C ]//INFOCOM 2007. Anchorage, AK, United States: IEEE Press, 2007: 1172- 1180.

引证文献3

二级引证文献8

北京邮电大学学报
2008年 第4期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部