水下无线传感网络中一种地理-机会的混合路由.pdfVIP

疆醋与胃鳝 Communication and Network 水下无线传感网络中一种地理-机会的混合路由 * 唐伟萍 l ，刘桂英 2 (1.广西电力职业技术学院汽车与交通系，广西南宁 53仪泊7;2.广西师范学院职业技术敏育学院，广西南宁 53仪)()1 ) 摘要:为了提高水下元线传感网络( UWSNs) 的数据采集效牟，提出基于地理-机会的水下无线传感网的混合-.由 (GOHR) 。 当源节点需要转发数据色时，首先计算候选转发节点集，并依据集内节点的归一化权重进行排序，形成转 发簇;然后分析每个簇的期望权重值;最终由最大期望权重值的簇内节点转发数据包。 同时，引用时延机制，抑制冗 余敛据包。 仿真结果表明，提出的 GOHR 协议提高了数据包传递牟，降低了数据包传输时延。 关键词:水下元线传感网;地理3tJ.由;机会员在由;声ì!倍;候选转发集;簇 中团分类号: TP393 文献标识码: A 001 : 10. 16 157/j.issn .0258-7998.2017.0 1.030 中文引用格式:磨伟萍，~J 桂英.水下无线传感网络中一种地理-机会的混合路囱[J].电子技术应用，2017 ， 43(1): 114-117. 英文引用格式: Tang Weiping , Liu Guiying. A gωi 伊phic-opportunistic hybrid routing for underwater wireless sensor networks[J). Application of Electronic Technique , 20 17 , 43 ( 1) : 114-1 17. A geographic -opportuni stic hybrid routing for underwater wireless sensor networks T a ng W eipin g , Liu Guiyin旷 (1 .Oepartment of Automotive and Transportation , Guan院i Electric Power Institute of Vocational Training , Nanning 53α07 , China ; 2.Institute of Vocational Education , Guangxi Terchers Education Univer百ity , Nan ning 53仪阳， China) Abstract: To improve the data collection in underwater wireless sensor networks (UWSNs) , a geogr叩hic and opportunistic hybrid routing (GOHR ) is proposed in this paper , which is marked as GOHR. ln GOHR , source node determines the neighbors candidate set , which is ordered by normalized advance metric , forming neighbor百 candidate clustering . Then , it computes the Expected Packet Advanced (EPA) of each cluster , and the c1uster with the highest EPA is selected as the next - hop forwarder. In order to void colli- sion in forwarding packet , the time -delay mechanism is adopted . Simulation results show lhat GOH R protocol has a good perfor- mance in terms of packet delivery ratio and end-to-end delay. Key words: underwat