In many wireless sensor network applications, it should be considered that how to trade off the inherent conflict between energy efficient communication and desired quality of service such as real-time and reliability...In many wireless sensor network applications, it should be considered that how to trade off the inherent conflict between energy efficient communication and desired quality of service such as real-time and reliability of transportation. In this paper, a novel routing protocols named balance energy-efficient and real-time with reliable communication （BERR） for wireless sensor networks （WSNs） are proposed, which considers the joint performances of real-time, energy efficiency and reliability. In BERR, a node, which is preparing to transmit data packets to sink node, estimates the energy cost, hop count value to sink node and reliability using local information gained from neighbor nodes. BERR considers not only each sender＇ energy level but also that of its neighbor nodes, so that the better energy conditions a node has, the more probability it will be to be chosen as the next relay node. To enhance real-time delivery, it will choose the node with smaller hop count value to sink node as the possible relay candidate. To improve reliability, it adopts retransmission mechanism. Simulation results show that BERR has better performances in term of energy consumption, network lifetime, reliability and small transmitting delay.展开更多
把RSSI(Received Signal Strength Indication)测距技术引入到无线传感器网络的路由策略中,形成一种新型路由协议.该协议能有效减少节点能耗,从而增加了无线传感器网络的寿命.在NS2平台上,分别对LEACH协议和新型路由协议行了仿真.结果表...把RSSI(Received Signal Strength Indication)测距技术引入到无线传感器网络的路由策略中,形成一种新型路由协议.该协议能有效减少节点能耗,从而增加了无线传感器网络的寿命.在NS2平台上,分别对LEACH协议和新型路由协议行了仿真.结果表明:新型路由协议下的网络寿命比LEACH的长;当网络工作在低负载的情况下,该新型协议的单位能耗下数据接收量比LEACH的要大.展开更多
基金supported by the National Natural Science Foundation of China (61104033, 61174127, 60934003)the Hebei Provincial Natural Science Fund (F2012203109, F2012203126)
文摘In many wireless sensor network applications, it should be considered that how to trade off the inherent conflict between energy efficient communication and desired quality of service such as real-time and reliability of transportation. In this paper, a novel routing protocols named balance energy-efficient and real-time with reliable communication （BERR） for wireless sensor networks （WSNs） are proposed, which considers the joint performances of real-time, energy efficiency and reliability. In BERR, a node, which is preparing to transmit data packets to sink node, estimates the energy cost, hop count value to sink node and reliability using local information gained from neighbor nodes. BERR considers not only each sender＇ energy level but also that of its neighbor nodes, so that the better energy conditions a node has, the more probability it will be to be chosen as the next relay node. To enhance real-time delivery, it will choose the node with smaller hop count value to sink node as the possible relay candidate. To improve reliability, it adopts retransmission mechanism. Simulation results show that BERR has better performances in term of energy consumption, network lifetime, reliability and small transmitting delay.
文摘把RSSI(Received Signal Strength Indication)测距技术引入到无线传感器网络的路由策略中,形成一种新型路由协议.该协议能有效减少节点能耗,从而增加了无线传感器网络的寿命.在NS2平台上,分别对LEACH协议和新型路由协议行了仿真.结果表明:新型路由协议下的网络寿命比LEACH的长;当网络工作在低负载的情况下,该新型协议的单位能耗下数据接收量比LEACH的要大.
