为了提高无线传感器网络中数据采集效率,提出了一种基于节点分级的混合多跳数据采集(hybrid multi-hop data collection,HMDC)算法。该算法首先基于数据量将所有节点均匀划分成簇,然后在簇内采用节点分级的思想进行数据的多跳传输,最后...为了提高无线传感器网络中数据采集效率,提出了一种基于节点分级的混合多跳数据采集(hybrid multi-hop data collection,HMDC)算法。该算法首先基于数据量将所有节点均匀划分成簇,然后在簇内采用节点分级的思想进行数据的多跳传输,最后使用移动采集器沿着最短路径访问簇头节点,对指定节点进行数据集采集。仿真结果表明,HMDC算法有效地提高了数据采集效率,均衡了能量消耗,延长了网络的生命周期,且更加适用于较大规模的数据采集。展开更多
Mobile sink is the challenging task for wireless sensor networks(WSNs).In this paper we propose to design an efficient routing protocol for single mobile sink and multiple mobile sink for data gathering in WSN.In this...Mobile sink is the challenging task for wireless sensor networks(WSNs).In this paper we propose to design an efficient routing protocol for single mobile sink and multiple mobile sink for data gathering in WSN.In this process,a biased random walk method is used to determine the next position of the sink.Then,a rendezvous point selection with splitting tree technique is used to find the optimal data transmission path.If the sink moves within the range of the rendezvous point,it receives the gathered data and if moved out,it selects a relay node from its neighbours to relay packets from rendezvous point to the sink.Proposed algorithm reduces the signal overhead and improves the triangular routing problem.Here the sink acts as a vehicle and collect the data from the sensor.The results show that the proposed model effectively supports sink mobility with low overhead and delay when compared with Intelligent Agent-based Routing protocol(IAR) and also increases the reliability and delivery ratio when the number of sources increases.展开更多
文摘为了提高无线传感器网络中数据采集效率,提出了一种基于节点分级的混合多跳数据采集(hybrid multi-hop data collection,HMDC)算法。该算法首先基于数据量将所有节点均匀划分成簇,然后在簇内采用节点分级的思想进行数据的多跳传输,最后使用移动采集器沿着最短路径访问簇头节点,对指定节点进行数据集采集。仿真结果表明,HMDC算法有效地提高了数据采集效率,均衡了能量消耗,延长了网络的生命周期,且更加适用于较大规模的数据采集。
文摘Mobile sink is the challenging task for wireless sensor networks(WSNs).In this paper we propose to design an efficient routing protocol for single mobile sink and multiple mobile sink for data gathering in WSN.In this process,a biased random walk method is used to determine the next position of the sink.Then,a rendezvous point selection with splitting tree technique is used to find the optimal data transmission path.If the sink moves within the range of the rendezvous point,it receives the gathered data and if moved out,it selects a relay node from its neighbours to relay packets from rendezvous point to the sink.Proposed algorithm reduces the signal overhead and improves the triangular routing problem.Here the sink acts as a vehicle and collect the data from the sensor.The results show that the proposed model effectively supports sink mobility with low overhead and delay when compared with Intelligent Agent-based Routing protocol(IAR) and also increases the reliability and delivery ratio when the number of sources increases.
