计算机工程与设计
計算機工程與設計
계산궤공정여설계
COMPUTER ENGINEERING AND DESIGN
2009年
22期
5094-5096,5119
,共4页
无线传感器网络%地理位置路由协议%GEAR算法%路由空洞%网络生命周期
無線傳感器網絡%地理位置路由協議%GEAR算法%路由空洞%網絡生命週期
무선전감기망락%지리위치로유협의%GEAR산법%로유공동%망락생명주기
wireless sensor network%geographical location routing protocol%GEAR algorithm%routing hole%network lifetime
针对无线传感器网络中地理位置路由(GEAR)算法在转发查询消息和解决路由空洞问题存在局限性,提出了一种改进的方案.改进的GEAR算法从均衡网络流量出发,根据规则建立了从源节点到目标区域的多条路径,并且避免了同一节点重复面临同一路由空洞问题.用NS2对GEAR算法和改进后的算法进行仿真,结果表明,改进的算法能够较好的平衡网络负载,增加网络生命周期.
針對無線傳感器網絡中地理位置路由(GEAR)算法在轉髮查詢消息和解決路由空洞問題存在跼限性,提齣瞭一種改進的方案.改進的GEAR算法從均衡網絡流量齣髮,根據規則建立瞭從源節點到目標區域的多條路徑,併且避免瞭同一節點重複麵臨同一路由空洞問題.用NS2對GEAR算法和改進後的算法進行倣真,結果錶明,改進的算法能夠較好的平衡網絡負載,增加網絡生命週期.
침대무선전감기망락중지리위치로유(GEAR)산법재전발사순소식화해결로유공동문제존재국한성,제출료일충개진적방안.개진적GEAR산법종균형망락류량출발,근거규칙건립료종원절점도목표구역적다조로경,병차피면료동일절점중복면림동일로유공동문제.용NS2대GEAR산법화개진후적산법진행방진,결과표명,개진적산법능구교호적평형망락부재,증가망락생명주기.
Since the geographical location routing (GEAR) algorithm has some shortcomings in forwarding query message and solving routing hole problem, this article proposed an improved scheme. Based on some rule, the improved GEAR algorithm established multipath from the source node to the target region, at the same time, it can avoid the identical node eneotmtering the same hole again. Both of the algorithms were emulated by NS2, the simulation results show that the improved algorithm can better balance the network loads and increase the network lifetime.
