Hierarchical Cluster Topology Architectures with MIMO Technology for Wireless Sensor Networks

Autor: Tuo-Jing Huang, 黃拓景
Rok vydání: 2017
Druh dokumentu: 學位論文 ; thesis
Popis: 105
With information technology getting more and more progress, computer and human life is getting closer and closer, in our living environment, filled with sensing elements, these sensing elements can be linked through the wireless network transmission, monitoring and sensing to collect information about our living environment, we say this kind of network architecture is Wireless Sensor Networks. In the wireless sensor network, the sensing node''s work is to collect information about the environment and transfer the data to the destination, whether it is to collect data or send data both need to consume energy, but the sensing component of the power is limited and due to random distribution So that it is not easy to manage all the sensing elements in the network, so how to save the power of the nodes to improve the overall network Energy efficiency is an important research topic. In order to improve the transmission quality of data, this study uses Cooperative Multi-Input Mult-output(CMIMO) technology, to reduce noise interference and improve the throughput of the network. This method is to increase the transmission quality of the data by increasing the number of transmission and reception antennas in the source and destination and using multiple spatial streams to transmit information. In order to apply the MIMO technology to the wireless sensor network to reduce the influence of the noise in the transmission, we add the sensing nodes to the cooperative node set, use the nodes in the cluster to cooperatively MIMO transmission, improve the transmission quality of Wireless Sensor Networks. In this paper, we proposed two kinds of cooperative MIMO cluster topology architectures, which are Improved Cluster Architecture with Cooperative Multi-Input Multi-Output Technology and Optimal Relay (ICACMIMOOR) and Hierarchical Cluster Architecture with Cooperative Multi-Input Multi-Output Technology and Optimal Relay (HCACMIMOOR). In addition, we will compare the two kind of cooperative MIMO technologies in this paper proposed and Multi-Channel Cooperative Multi-Input (MCCMIMO) which we refer to the author proposed. In MCCMIMO which proposed by [1], there are two factors that affect the node to be a cluster header. The first factor is the residual energy of the node. Since the work of the cluster head not only receives the information transmitted by the cluster members, it also sends the collected data to the cooperative node, which leads to the rapid consumption of the nodes as the node head, so the node with the highest remaining energy is chosen as the cluster head, which can effectively increase the survival time of all nodes. Another factor depends on the average distance between the node and the neighboring nodes. Since the energy consumed by the transmitted data is affected by the transmission distance, if the position of the cluster head is too far from the adjacent nodes, causing the nodes in the cluster consume energy too fast, resulting in rapid death of the cluster, so the location of the node is also a factor of consideration. In ICACMIMOOR, we add Energy-efficient Beaconless Geographic Routing (EBGR) algorithms in a cooperative MIMO cluster architecture to calculate the number of relay transfer clusters, which not only reduces the number of transfers but also reduces the energy caused by unnecessary cluster transmissions consumption. In order to effectively avoid ICACMIMOOR in the number of times when the cluster caused by excessive consumption of energy, this study proposed HCACMIMOOR architecture. In HCACMIMOOR, we treat the source cluster as its 1-hop transition cluster as the same cluster. In source side, the collected data is sent by the cluster head to the cooperative node of the 1-hop transition cluster, than cooperative MIMO transmission is performed by 1-hop transfer clusters, to reduce the energy consumption of the source cluster due to the transmission of data. At the last, compare the two kinds of cooperative MIMO technologies in this paper proposed ICACMIMOOR, HCACMIMOOR and MCCMIMO which we refer to the author proposed. In terms of energy efficiency, ICACMIMOOR, HCACMIMOOR and MCCMIMO compare the node remaining energy sum in each round, at the 200th round, MCCMIMO node residual energy sum of 164J, ICACMIMOOR 230J and HCACMIMOOR 230.4J, so we proposed the structure can be effective Improve energy efficiency and extend the lifecycle of the network.
Databáze: Networked Digital Library of Theses & Dissertations
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