传感器与微系统
傳感器與微繫統
전감기여미계통
TRANSDUCER AND MICROSYSTEM TECHNOLOGY
2014年
8期
141-144,157
,共5页
无线传感器网络%拥塞避免%多径路由%相互干扰度
無線傳感器網絡%擁塞避免%多徑路由%相互榦擾度
무선전감기망락%옹새피면%다경로유%상호간우도
WSNs%congestion avoidance%multipath routing%mutual interference
针对无线传感器网络( WSNs)数据汇聚特性易导致网络拥塞的问题,结合改进AOMDV协议的多径建立、选择机制的缺陷,提出一种拥塞自适应的多径路由算法。新协议首先引入相关因子模型建立相互干扰度最小的路径集;其次建立路径拥塞信息采集、更新机制,并利用HELLO消息传递。最终源节点通过实时感知路径拥塞信息,自适应选择低拥塞路径来避免拥塞。仿真结果表明:改进的协议显著提高了分组投递速率,降低了端对端时延。
針對無線傳感器網絡( WSNs)數據彙聚特性易導緻網絡擁塞的問題,結閤改進AOMDV協議的多徑建立、選擇機製的缺陷,提齣一種擁塞自適應的多徑路由算法。新協議首先引入相關因子模型建立相互榦擾度最小的路徑集;其次建立路徑擁塞信息採集、更新機製,併利用HELLO消息傳遞。最終源節點通過實時感知路徑擁塞信息,自適應選擇低擁塞路徑來避免擁塞。倣真結果錶明:改進的協議顯著提高瞭分組投遞速率,降低瞭耑對耑時延。
침대무선전감기망락( WSNs)수거회취특성역도치망락옹새적문제,결합개진AOMDV협의적다경건립、선택궤제적결함,제출일충옹새자괄응적다경로유산법。신협의수선인입상관인자모형건립상호간우도최소적로경집;기차건립로경옹새신식채집、경신궤제,병이용HELLO소식전체。최종원절점통과실시감지로경옹새신식,자괄응선택저옹새로경래피면옹새。방진결과표명:개진적협의현저제고료분조투체속솔,강저료단대단시연。
Aiming at problem that wireless sensor networks( WSNs)data gathering features easy lead to network congestion,a congestion adaptive multipath routing algorithm is proposed,combined with improving defect of mechanism of multipath establish and selection of AOMDV. Firstly,relevant factor mode is introduced in the new agreement to build a path set with minimal mutual interference;secondly,establish path congestion information collection,update mechanism,and use the HELLO message to transmit. Eventually source node adaptively selects the lower congestion path to avoid congestion by real-time sense path congestion information. Simulation results show that the improved protocol can effectively improve packet delivery and reduce end-to-end delay.