传感技术学报
傳感技術學報
전감기술학보
Journal of Transduction Technology
2015年
4期
551-556
,共6页
何杏宇%周亦敏%杨桂松%王伟
何杏宇%週亦敏%楊桂鬆%王偉
하행우%주역민%양계송%왕위
无线传感器网络%能量感知增强树%动态剩余能量阈值%同质化加权求和
無線傳感器網絡%能量感知增彊樹%動態剩餘能量閾值%同質化加權求和
무선전감기망락%능량감지증강수%동태잉여능량역치%동질화가권구화
Wireless Sensor Networks%energy-aware enhanced tree%dynamic residual energy threshold%homogeniza-tion weighted sum
现有的无线传感器网络路由协议普遍采用设定固定最小能量阈值的方法来避免低剩余能量的节点被选为数据转发节点,以防止因节点过早死亡而导致的网络结构破坏。然而这种方法缺乏应用灵活性。在本研究提出的能量感知增强树型路由协议中,设定了随着网络整体能量下降而动态变化的节点剩余能量阈值,以使得网络中所有节点的能量均衡下降,且采用了同质化加权求和的方法将邻居节点节省的路由跳数和剩余能量同时考虑进路由决策过程。最后,实验结果显示该协议可进一步提高网络稳定性。
現有的無線傳感器網絡路由協議普遍採用設定固定最小能量閾值的方法來避免低剩餘能量的節點被選為數據轉髮節點,以防止因節點過早死亡而導緻的網絡結構破壞。然而這種方法缺乏應用靈活性。在本研究提齣的能量感知增彊樹型路由協議中,設定瞭隨著網絡整體能量下降而動態變化的節點剩餘能量閾值,以使得網絡中所有節點的能量均衡下降,且採用瞭同質化加權求和的方法將鄰居節點節省的路由跳數和剩餘能量同時攷慮進路由決策過程。最後,實驗結果顯示該協議可進一步提高網絡穩定性。
현유적무선전감기망락로유협의보편채용설정고정최소능량역치적방법래피면저잉여능량적절점피선위수거전발절점,이방지인절점과조사망이도치적망락결구파배。연이저충방법결핍응용령활성。재본연구제출적능량감지증강수형로유협의중,설정료수착망락정체능량하강이동태변화적절점잉여능량역치,이사득망락중소유절점적능량균형하강,차채용료동질화가권구화적방법장린거절점절성적로유도수화잉여능량동시고필진로유결책과정。최후,실험결과현시해협의가진일보제고망락은정성。
To avoid network structure being destroyed by early death of nodes with low residual energy for being se-lected as forwarding nodes, the current wireless sensor network routing protocols generally use a fixed residual energy threshold approach. However,this approach lacks flexibility in application. An Energy-Aware Enhanced Tree Routing( EAETR) protocol is proposed in this study,in which a dynamic residual energy threshold is set to change as node energy decreases so that network energy declines in a balanced way,and a homogenization weighted sum is used to consider both saving hops and residual energy of a neighbor node in the routing decision process. Stimula-tion results show that the protocol can further improve network stability.