摘要
为弥补传统路由协议网络实时性质量不高的缺陷,提出一种基于两跳邻居信息的功率感知实时路由算法(THPAR),利用两跳邻居信息进行路由决策,为应对不同的包传输速率需求,融入功率控制机制动态调节节点发射功率,降低截止期错失率及链路丢包率,提高鲁棒性。改进THVR的转发能量策略,以减小能耗。对THPAR和THVR算法进行仿真实验及比较分析,结果表明,THPAR在能量有效性和延迟性方面具有优势。
To make up the defect that the real-time quality of traditional routing protocol is not high,this paper proposes a Power Aware Real-time routing algorithm based on Two-hop neighborhood information（THPAR）.THPAR uses two-hop neighborhood information for routing decisions,and employs power-control mechanism to dynamically adjust nodes＇ transmitting power in order to meet demand of different packet transmission velocity.As a result,it reduces the Deadline Miss Ratio（DMR）,link packet loss ratio and increases robustness.Besides THPAR improves forwarding energy policy of THVR,it reduces the energy consumption.Simulation and comparison analysis between THPAR and THVR are done.Simulation results show that THPAR can perform better than THVR in term of energy consumption and delay.
出处
《计算机工程》
CAS
CSCD
北大核心
2011年第23期89-92,共4页
Computer Engineering
基金
湖南省自然科学基金资助项目(10JJ6091)
湖南省教育厅基金资助项目(10C0511)
关键词
无线传感器网络
两跳信息
转发速率
功率控制
截止期错失率
实时
Wireless Sensor Network（WSN）
two-hop information
forwarding velocity
power control
Deadline Miss Ratio（DMR）
real-time
