CAJ | 학술논문

在无线传感器网络路由协议的设计中，传感器节点的监测数据要以多跳中继的方式向sink汇聚节点进行传输。在sink汇聚节点固定网络，临近sink汇聚节点的传感器节点需要中转其他节点的监测数据，从而耗费大量的电池能量，很容易造成过早地死亡，使网络的连通度下降，甚至会造成网络的分割，缩短了网络寿命。为了解决这一问题，从sink汇聚节点的角度，提出了一个基于sink汇聚节点移动的能量均衡的路由协议--SERP路由协议，通过sink汇聚节点的移动，使其附近的传感器节点不断地发生变化也就是网络内的“热点”不断地发生变化，从而促使传感器节点间的负载得到均衡，达到延长网络寿命的目的。在协议中，首先将无线传感器网络的监测区域分成有限个虚拟单元格，然后以每个单元格的中心作为sink汇聚节点的移动位置，最后通过线性规划确定sink汇聚节点在每个位置的停留时间。针对上述路由协议，对它进行了仿真分析，结果显示网络内节点的能量消耗比较高效均衡，有效地延长了网络寿命。
재무선전감기망락로유협의적설계중，전감기절점적감측수거요이다도중계적방식향sink회취절점진행전수。재sink회취절점고정망락，림근sink회취절점적전감기절점수요중전기타절점적감측수거，종이모비대량적전지능량，흔용역조성과조지사망，사망락적련통도하강，심지회조성망락적분할，축단료망락수명。위료해결저일문제，종sink회취절점적각도，제출료일개기우sink회취절점이동적능량균형적로유협의--SERP로유협의，통과sink회취절점적이동，사기부근적전감기절점불단지발생변화야취시망락내적“열점”불단지발생변화，종이촉사전감기절점간적부재득도균형，체도연장망락수명적목적。재협의중，수선장무선전감기망락적감측구역분성유한개허의단원격，연후이매개단원격적중심작위sink회취절점적이동위치，최후통과선성규화학정sink회취절점재매개위치적정류시간。침대상술로유협의，대타진행료방진분석，결과현시망락내절점적능량소모비교고효균형，유효지연장료망락수명。
In the wireless sensor network routing protocol design, the sensor node monitoring data transmits in multi-hop relay approach to sink node. For sink aggregation node fixed network, sensor nodes of near sink nodes need to transfer to other nodes of the monitoring data, consume large amounts of energy, are easy to premature death, make the network connectivity decline, even make the network segmentation, shorten the lifetime of the network. In order to solve this problem, SERP is a energy bal-ancing routing protocol based on sink mobility. It adopts the strategy of sink movement which makes the hot nodes inside the network to take turns and balances the load among them. In SERP, the WSN deployment area is divided into finite branch areas and then it takes the centre of each branch area as the movement locations of sink nodes. The sojourn time of sink nodes in each location is figured through linear programming. The paper makes simulations and analysis to the two routing protocols above. The results show that the inside node energy consumption is comparatively balanced and efficient, and the network lifetime is prolonged effectively.