A Method for Minimizing Base Station Deployment in Radio Frequency Energy Harvesting Sensor Networks
A technology of radio frequency energy and sensor network, applied in network topology, network planning, wireless communication, etc., can solve the problem of high deployment cost of energy capture sensor network, achieve the effect of reducing deployment cost and reducing the number of base stations
Active Publication Date: 2021-08-03
ZHEJIANG UNIV OF TECH
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[0004] In order to overcome the problems of base station deployment in the existing radio frequency energy harvesting wireless sensor network and the high deployment cost of the energy harvesting sensor network, the present invention proposes a method for minimizing the deployment of base stations in the radio frequency energy harvesting sensor network, which considers different Heterogeneous radio frequency energy harvesting wireless sensor network with nodes with different data transmission rate requirements, minimizing the number of base station deployments given the energy source and node deployment location and given the throughput requirements of each node
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[0027] The present invention will be further described below.
[0028] A method for minimizing deployment of radio frequency energy harvesting sensor network base stations, the method comprising the following steps:
[0029] Step 1: According to the physical positions of M RF energy sources and K sensor nodes deployed in the RF energy harvesting sensor network, calculate the energy harvesting power P of each node k k , k=1,2,...,K, and then set the sending power of the node to αP k , where α is the proportion of energy captured by the node for packet transmission;
[0030] Step 2: For k=1,2,...,K, the transmission power αP of node k k and minimum throughput requirements Calculate the demand radius r of node k k ;
[0031] Step 3: According to the physical positions of the K sensor nodes deployed in the RF energy capture sensor network, the rectangular area covering all nodes and having the smallest area is evenly divided into p×q small rectangular grids, and these networ...
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A method for minimizing the deployment of radio frequency energy harvesting sensor network base stations. For a given sensor node and radio frequency energy source deployment position, base stations are placed one by one in the network area, and the actual throughput of each node is not lower than its throughput. Under the premise of mass demand, the number of deployed base stations should be reduced as much as possible. The method can find out a solution for deploying fewer base stations, thereby achieving the effect of reducing network deployment costs.
Description
technical field [0001] The invention relates to a radio frequency energy capture sensor network base station minimum deployment method, which is suitable for a wireless sensor network that captures radio frequency energy from a dedicated radio frequency energy source. Background technique [0002] The sensor node with the function of capturing energy from the environment breaks through the energy constraint bottleneck of the limited lifetime of traditional sensor nodes, and has a wide range of application prospects. In wireless sensor networks that capture stable energy from radio frequency energy sources, nodes transmit data to a base station through single-hop communication, which is a very suitable data transmission method. [0003] According to Shannon's theorem, the farther the node is from the base station, the smaller the throughput that can be exchanged for unit energy consumption. In order to meet the throughput requirements of the nodes, multiple base stations are...
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IPC IPC(8): H04W16/18H04W84/18
CPCH04W16/18H04W84/18
Inventor 池凯凯蔡荣辉徐欣晨俞湛威
Owner ZHEJIANG UNIV OF TECH