全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

OFDMA中继网络上行链路资源分配算法设计

, PP. 80-85

Keywords: 正交频分多址(OFDMA),放大-转发,中继网络,上行链路,异构业务,资源分配

Full-Text   Cite this paper   Add to My Lib

Abstract:

针对放大-转发OFDMA中继网络上行链路,考虑具有不同QoS要求的异构业务场景,在用户与中继独立功率约束条件下,提出一种子载波对匹配分配与功率分配算法,以实现在满足非弹性用户速率需求前提下,最大化弹性用户和速率的目标.为降低算法计算复杂度,将原混合二进制整数规划问题分解为子载波对匹配分配,非弹性用户与中继、弹性用户与中继联合功率分配三个子问题,从而实现计算复杂度从指数级别到线性的下降.仿真结果显示,所提方案能够满足非弹性用户的速率需求,且弹性用户的和速率容量明显高于等功率分配原则和未进行子载波匹配下的资源分配算法.

References

[1]  [1] ZHOU N, ZHU X, HUANG Y. Adaptive resource allocation for multidestination relay systems based on OFDM modulation[C]// Proceedings of the 2009 IEEE International Conference on Communications. Dresden:IEEE Press, 2009:1-5.
[2]  [2] SALEM M, ADINOYI A, RAHMAN M, et al. An overview of radio resource management in relayenhanced OFDMA-based networks[J]. IEEE Commun Surveys & Tutorials, 2010,12(3):422-436.
[3]  [3] HSU C, SU H, LIN P. Joint subcarrier pairing and power allocation for OFDM transmission with decode-and-forward relaying[J]. IEEE Transactions on Signal Processing, 2011,59(1):399-414.
[4]  [4] 万庆涛, 马冠一. 放大-转发OFDMA中继系统多业务资源分配方案[J]. 应用科学学报, 2012, 30(1): 8-12.
[5]  WAN Qing-tao, MA Guan-yi, Resource allocation scheme for heterogeneous services in amplifyandforward OFDM relay system [J]. Journal of Applied Sciences, 2012,30(1):8-12.(in Chinese)
[6]  [5] LI G, LIU H. Resource allocation for OFDMA relay networks with fairness constraints[J]. IEEE Journal on Selected Areas in Communications, 2006, 24(11): 2061-2068.
[7]  [6] SIDHU G A S, GAO F, FAN L. A joint resource allocation scheme for relay aided uplink multi-user OFDMA system[C]// Proceedings of the 2011 IEEE Global Telecommunications Conference. Houston:IEEE Press, 2011:1-5.
[8]  [7] HYUNDOO J, JAE L H, HANBYUL S. Resource allocation for uplink multiuser ofdm relay networks with fairness constraints[C]//Proceedings of the 2009 IEEE 69th Vehicular Technology Conference. Barcelona: IEEE Press, 2009: 1-5.
[9]  [8] LIU K J R, SADEK A K, SU W,et al. Cooperative Communications and Networking[M]. Cambridge : Cambridge University Press, 2009.
[10]  [9] NG D W K, SCHOBER R. Crosslayer scheduling for OFDMA amplifyandforward relay Networks[J]. IEEE Transactions on Vehicular Technology, 2010, 59(3):1443-1458.
[11]  [10] HUI D S W, LAU V K N, LAM W H. Crosslayer design for OFDMA wireless systems with heterogeneous delay requirements[J]. IEEE Transactions on Wireless Communications, 2007, 6(8): 2872-2880.
[12]  [11] ANTONTOU A, LU W S. Practical Optimization: Algorithms and Engineering Applications[M]. [S.l.]:Springer, 2007.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133