山东大学学报（理学版） ›› 2017, Vol. 52 ›› Issue (11): 49-53.doi: 10.6040/j.issn.1671-9352.0.2017.263
饶绪黎1,黄川2,林晖2
RAO Xu-li1, HUANG Chuan2, LIN Hui2
摘要： 针对当前无线局域网中信道切换时延问题,设计了一种新的快速信道切换方案FCH-USRP(fast channel handoff with USRP)。通过使用USRP(universal software radio peripheral)设备对所处无线环境进行信道扫描,以提供及时准确的无线信道信息,从而减少用户的信道切换时延。实验结果表明该方案能够有效减少信道切换时延,并在较短时间内恢复中断的数据传输。
中图分类号:
| [1] MISHRA A,SHIN M, ARBAUGH W. An empirical analysis of the IEEE 802.11 MAC layer handoff process [J]. ACM SIGCOM Computer Communication Review, 2003, 33(2):13-16. [2] SAXENAN N, ROY A. Novel framwork for proactive handover with seamless multimedia over WLANs [J]. Communications IET, 2011, 5(9):1204-1212. [3] 葛坤玉,汪鹏,魏振春,等.基于改进邻居图的WLAN快速切换机制研究[J]. 合肥工业大学学报(自然科学版),2015,38(3):336-340. GE Kunyu, WANG Peng, WEI Zhenchun, et al. Fast handoff mechanism based on improved neighbor graph for IEEE 802.11 wireless networks[J]. Journal of Hefei University of Technology(Natural Science), 2015, 38(3):336-340. [4] VELAYOS H, KARLSSON G. Techniques to reduce IEEE 802.11b MAC layer handover time[R]. Stockholm: KunglTekniska Hogskolen, 2003, 3(2):36-47. [5] SHIN M, ARBAUGH W. Improving the latency of 802.11 Handoffs using neighbor graphs[C] //Proceedings of the 2nd International Conference on Mobile Systems, Applications and Services. New York:ACM, 2004:70-83 [6] 陈作聪.基于改进邻居图的无线局域网快速切换认证机制研究[J].长江大学学报(自然科学版),2010,7(3):575-577. CHEN Zuochong. Research on fast switching authentication mechanism of wireless local area network based on improved neighborhood diagram[J]. Journal of Yangtze University(Natural Science Edition), 2010, 7(3):575-577. [7] KAMAL JMM, RASHID MJ, ISLAM T, et al. An intelligent handoff decision algorithm[C] //International Conference on Computer and Communication Engineering. New York: IEEE, 2008:37-41. [8] BRIK V, MISHRA A, BANERJEE S. Eliminating handoff latencies in 802.11 WLANs using multiple radios: applications, experiences and evaluation[C] //Proceedings of the 5th ACM SIGCOMM Conference on Internet Measurement(IMC'05), 2005: 27-27. [9] 王洪,孙清清,肖宇,等.基于软件定义无线电平台的1090MHz频谱监测与分析方法[J]. 计算机应用,2015,2:4-7. WANG Hong, SUN Qingqing, XIAO Yu, et al. Spectrum monitor and analysis method of 1 090 MHz based on software defined radio platform[J]. Journal of Computer Applications, 2015, 2:4-7. [10] IEEE. IEEE 802.11i-2004: amendment 6: medium access control(MAC)security enhancements[EB/OL].[2016-12-25]. http://standards.ieee.org/getieee802/download/802.11i-2004.pdf. [11] 李珺,李娟,陈义,等.具有GPS信息的邻居图切换算法[J]. 通信技术,2006(1):120-122. LI Jun, LI Juan, CHEN Yi, et al. Neighbor graph handoff mechanism with GPS Information[J]. Communications Technology, 2006(1):120-122. [12] Sheldon M Ross. 应用随机过程—概率模型导论[M]. 龚光鲁,译. 北京:人民邮电出版社,2011. Sheldon M Ross. Introduction to prohability models[M].GONG Luguang, trans. Beijing: Posts & Telecom Press, 2011. |
| [1] | 戴珍香,李曙光,亓兴勤 . 波分复用星形单跳网中3信道的传输调度问题[J]. J4, 2007, 42(2): 46-50 . |
|
||
