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CSMA/CQ: A Novel SDN-Based Design to Enable Concurrent Execution of Channel Contention and Data Transmission in IEEE 802.11 Networks

文献类型：期刊论文

作者Zhao, Qinglin1; Xu, Fangxin1; Yang, Jie1; Zhang, Yujun2
刊名IEEE ACCESS
出版日期2017
卷号5页码:2534-2549
关键词OFDM software-defined wireless networks function separation 802.11
ISSN号2169-3536
DOI10.1109/ACCESS.2017.2665554
英文摘要Conventional 802.11 carrier sense multiple access/collision avoidance (CSMA/CA) networks perform channel contention and data transmission serially over a whole channel. This leads to low throughput efficiency. In this paper, we propose a novel design called CSMA/CQ (contention queuing) to address this problem. This design is developed from the decoupling idea of SDN (Software-defined networking). In CSMA/CQ, each node concurrently executes channel contention and data transmission over two separate subchannels, where a CQ is introduced to coordinate the concurrency. This design enables CSMA/CQ to inherit the merit of the conventional distributed random channel access and carry out a centralized control on data transmission, while achieving far higher throughput than conventional 802.11 networks. We then develop a theoretical model to optimize bandwidth allocation for the channel contention and the data transmission, and prove the existence and uniqueness of the optimal solution. Extensive simulations verify the efficiency of CSMA/CQ and the accuracy of our theoretical model. To the best of our knowledge, CSMA/CQ is the first protocol to make channel contention and data transmission be executed independently and concurrently for wireless LANs (WLANs). This paper provides novel ideas in designing software-defined wireless networks.
资助项目Macao FDCT-MOST[001/2015/AMJ] ; Macao FDCT[104/2014/A3] ; Macao FDCT[005/2016/A1] ; China MOST-FDCT[2016YFE0121500] ; National Natural Science Foundation of China[61672500] ; Instrument Development Project of CAS in China[YZ201426]
WOS研究方向Computer Science ; Engineering ; Telecommunications
语种英语
WOS记录号WOS:000397136900157
出版者IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
源URL[http://119.78.100.204/handle/2XEOYT63/7454]  
专题中国科学院计算技术研究所期刊论文_英文
通讯作者Zhao, Qinglin
作者单位1.Macau Univ Sci & Technol, Fac Informat Technol, Macau 853, Peoples R China
2.Chinese Acad Sci, Inst Comp Technol, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Zhao, Qinglin,Xu, Fangxin,Yang, Jie,et al. CSMA/CQ: A Novel SDN-Based Design to Enable Concurrent Execution of Channel Contention and Data Transmission in IEEE 802.11 Networks[J]. IEEE ACCESS,2017,5:2534-2549.
APA Zhao, Qinglin,Xu, Fangxin,Yang, Jie,&Zhang, Yujun.(2017).CSMA/CQ: A Novel SDN-Based Design to Enable Concurrent Execution of Channel Contention and Data Transmission in IEEE 802.11 Networks.IEEE ACCESS,5,2534-2549.
MLA Zhao, Qinglin,et al."CSMA/CQ: A Novel SDN-Based Design to Enable Concurrent Execution of Channel Contention and Data Transmission in IEEE 802.11 Networks".IEEE ACCESS 5(2017):2534-2549.

入库方式： OAI收割

来源：计算技术研究所

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