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基于用户分配和负载的频谱分配算法 被引量：10

Spectrum Allocation Algorithm Based on User Allocation and Load
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摘要 提出了一种基于用户分配和负载的频谱分配算法.该算法包括两部分:用户分配子算法和频谱分配子算法.用户分配子算法首先基于聚类划分理论,使分配到相同访问点下的用户具有相近的信噪比,缓解了无线接入网络中普遍存在的远近效应问题.在该用户分配基础上,频谱分配子算法根据各访问点的负载及其关联用户信噪比的平均值计算最优频谱分配.该算法具有可实现性、多项式时间的计算复杂度以及比例公平性.真实数据驱动的仿真实验结果表明,该算法能够有效地提高系统吞吐量,同时大幅度减小访问点的报文缓冲区队长. A spectrum allocation algorithm based on user allocation and load is proposed which includes two parts： User allocation sub-algorithm and spectrum allocation sub-algorithm. Based on the theory of cluster partitioning, an user allocation sub-algorithm is designed. This makes the users associate the same access point with similar signal noise ratios; therefore, this alleviates the popular near-far problem of wireless access network. Then, based on the user allocation results, a spectrum allocation sub-algorithm is designed for optimizing the spectrum allocation according to the load of each access point and the mean value of signal noise ratios of its associated users. The proposed algorithm is realizable, and has polynomial computation complexity and proportional fairness. The trace-driven simulations show that the system throughput is improved efficiently and the length of packet buffer is decreased profoundly by the proposed algorithm.
作者 陈剑 吴建平 李贺武
机构地区 解放军理工大学指挥自动化学院 清华大学计算机科学与技术系 清华大学信息网络工程研究中心
出处 《软件学报》 EI CSCD 北大核心 2013年第7期1638-1649,共12页 Journal of Software
基金 国家重点基础研究发展计划(973)(2009CB320500) 国家科技重大专项(2011ZX03002-002_02 2012ZX01039-003 2012ZX03002015-003) 军用网络技术实验室创新开放基金(2012002)
关键词 用户分配 关联控制 频谱分配 动态频谱访问 负载 user allocation association control spectrum allocation dynamic spectrum access load
分类号 TP393 [自动化与计算机技术—计算机应用技术]
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参考文献20

  • 1Tandra R, Sahai A. Fundamental limits on detection in low SNR under noise uncertainty. In: Proc. of the lnt'l Conf. on Wireless Networks, Communications and Mobile Computing. Maul: IEEE Press, 2005. 464-469. [doi: 10.1109/WIRLES.2005.1549453].
  • 2Zhao Q, Sadler BM. A survey of dynamic spectrum access: Signal processing, networking, and regulatory policy. IEEE Signal Processing Magazine, 2007,24(3):79-89. [doi: 10.1109/MSP.2007.361604].
  • 3Yuan Y, Bah1 P, Chandra R, Moscibroda T, Wu Y. Allocating dynamic time-spectrum blocks in cognitive radio networks. In: Proc. of the 8th ACM Int'l Symp. on Mobile Ad Hoc Networking and Computing (MobiHoc 2007). Berkeley: ACM Press. 2007. 130-139. [doi: 10.1145/1288107.1288125].
  • 4Yang L, Hou W, Zhao BY, Zheng H. Supporting demanding wireless applications with frequency-agile radios. In: Proc. of the 7th USENIX Symp. on Networked Systems Design and Implementation (NSDI 2010). New York: ACM Press, 2010. 65-80.
  • 5Moscibroda T, Chandra R, Wu Y, Sengupta S, Bahl P, Yuan Y. Load-Aware spectrum distribution in wireless LANs. In: Proc. of the 16th 1EEE lnt'l Conf. on Network Protocols (ICNP 2008). Riverside: IEEE Press, 2008. 137-146. Idol: 10.1109/ICNP.2008. 4697032].
  • 6Rayanchu S, Shrivastava V, Banerjee S. FLUID: Improving throughputs in enterprise wireless LANs through flexible channelization. In: Proc. of the 17th ACM Int'l Conf. on Mobile Computing and Networking (MobiCom 2011). New York: ACM Press, 2008. 1-12. [doi: 10.1145/2030613.2030615].
  • 7Bejerano Y, Han SJ, Li L. Fairness and load balancing in wireless LANs using association control. IEEE/ACM Trans. on Networking, 2007,15(3):560-573. [doi: 10.1145/1295237.1295244].
  • 8Papanikos I, Logothetis M. A study on dynamic load balance for IEEE 802.1 lb wireless LAN. In: Proc. of the 8th Int'l Conf. on Advances in Communication and Control (COMCON 2001). William R. Wells, 2001. 83-89. http://www-inst.eecs.berkeley.edu/ -ee228a/fa03/228A03/802.11%20wlan/dynamie load balancing.pdf.
  • 9Balachandran A, Bahl P, Voelker GM. Hot-Spot congestion relief and service guarantees in public-area wireless networks. ACM Computer Communication Review, 2002,32(1):59-59. [doi: 10.1145/510726.510733].
  • 10Tsai TC, Lien CF. IEEE 802.11 hot spot load balance and QoS maintained seamless roaming. In: Proc. of the National Computer Symp. (NCS 2003). Inderscience, 2003. 1986-1992. http://130.203.133.150/showciting;jsessionid=0892457328420FE9967E227 BB5920191 ?cid=9108879.

同被引文献68

  • 1AKYILDIZ I F,LO B F,BALAKRISHNAN R.Cooperative spectrum sensing in cognitive radio networks:A survey[J]. Physical Communication, 2011 , 4(1 ) : 40-62.
  • 2ZHANG R, LIM T J, LIANG Y C, et al.Muhi-antenna based spectrum sensing for cognitive radios:A GLRT app- roach [J ]. Communications, IEEE Transactions on, 2010,58 (1) : 84-88.
  • 3ZHANG X,GUO L,WEI X.An energy-balanced coopera- tive MAC protocol based on opportunistic relaying in MANETs[J].Computers & Electrical Engineering, 2013,39 (6): 1894-1904.
  • 4ALIASGARI M,ABBASFAR A, FAKHRAIE S M.Coding techniques to mitigate out-of-band radiation in high data rate OFDM-based cognitive radios[J].Computers & Electrical Engineering, 2013,39(2) : 373-385.
  • 5F. C. C. S. P. T. Force. Report of the spectrum efficiency working group. Federal Communications Commision ER~,Technical Report, 2002.
  • 6D. A. Roberson. Structural support for cognitive radio system deploy- ment[C~. In Proceedings. of Interna- tional Conference on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCOM), Or- lando, FL,USA, 2007.
  • 7DQian Zhang Mingyan Liu Shufang Li Dawei Chen, Si~ xing Yin. Mining spectrum usage data: a large - scale spectrum measurement study[C]. In Proceedings of the ACM MobiCom, 2009.
  • 8T.C. Clancy. Formalizing the interference temperature model[,J]. Wireless Communications and Mobile Com- puting,2007,7(9).
  • 9W. Wang and X. Liu. List- coloring based channel allo- cation for open- spectrum wireless networks EC]. In IEEE Vehicular Technology Conference, Citeseer, 2005, volume 62.
  • 10H. Zheng and C. Peng. Collaboration and fairness in op- portunistic spectrum access. In Proceedings of IEEE In- ternational Conference on Communications (ICC), Cite- seer,2005.

引证文献10

二级引证文献7

软件学报
2013年 第7期

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