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延迟容忍网络中基于复制率的拥塞控制算法

DOI: 10.13190/jbupt.201004.88.liuql, PP. 88-92

Keywords: 延迟容忍网络,传染路由,拥塞控制,复制率

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Abstract:

为了解决延迟容忍网络中现有DropFront(DF)、DropOldest(DO)等拥塞控制算法吞吐量较低的问题,提出了一种在传统的传染路由协议下基于复制率的拥塞控制算法.当节点接收新数据包缓存发生拥塞时,节点根据数据包的复制次数和已经过的生命周期估算各数据包的复制率,并丢弃复制率最大的数据包,从而缓解拥塞.仿真结果表明,该算法较DF和DO算法降低了网络的丢包率,提高了网络的吞吐量,有效地缓解了拥塞.

References

[1]  FCC spectrum policy task force. Report of spectrum efficiency working group. Washington: Federal Communications Commission, 2002.
[2]  王朝翔, 苗建松, 丁炜. 模糊逻辑控制的MAC协议[J]. 北京邮电大学学报, 2007, 30(6): 131-134. Wang Zhaoxiang, Miao Jiansong, Ding Wei. A fuzzy logic MAC protocol[J]. Journal of Beijing University of Posts and Telecommunications, 2007, 30(6): 131-134.
[3]  Claudia C, Kaushik R C. A survey on MAC protocols for cognitive radio networks[J]. Ad Hoc Networks, 2009, 7(7): 1315-1329.
[4]  Ghasemi A, Sousa E S. Spectrum sensing in cognitive radio networks: requirements, challenges and design trade-offs[J]. IEEE Communications Magazine, 2008, 46(4): 32-39.
[5]  Unnikrishnan J V, Veeravalli V. Cooperative spectrum sensing and detection for cognitive radio//IEEE Global Telecommunications Conference. Washington:, 2007: 2972-2976.
[6]  Zhou C, Chigan C. A game theoretic DSA-driven MAC framework for cognitive radio networks//IEEE International Conference on Communications. Beijing:, 2008: 4165-4169.
[7]  Ma L, Han X, Shen C C. Dynamic open spectrum sharing for wireless ad hoc networks//IEEE Dynamic Spectrum Access Networks. Maryland:, 2005: 203-213.
[8]  Pawelczak P, Prasad R V, Xia Liang, et al. Cognitive radio emergency networks-requirements and design//IEEE Dynamic Spectrum Access networks. Maryland:, 2005: 601-606.
[9]  Su Hang, Zhang Xi, CREAM-MAC: an efficient cognitive radio-enabled multi-channel MAC protocol for wireless networks//IEEE International Symposium on World of Wireless, Mobile and Multimedia Networks. Newport Beach: , 2008: 1-8.
[10]  Baynast Alexandre de, Mahonen Petri, Petrova Marina. ARQ-based cross-layer optimization for wireless multi-carrier transmission on cognitive radio networks[J]. Computer Networks, 2008, 52(4): 778-794.
[11]  Baldo Nicola, Zorzi Michele. Fuzzy logic for cross-layer optimization in cognitive radio networks[J]. IEEE Communications Magazine, 2008, 23(4): 64-71.

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