Title: A new transmission strategy to achieve energy balance and efficiency in wireless sensor networks
Authors: Yanli Wang; Yanyan Feng
Addresses: Computer College, Weinan Normal University, Weinan, 714000, China ' School of Foreign Studies, Weinan Normal University, Weinan, 714000, China
Abstract: Energy balancing and energy efficiency are very important in prolong network life. In wireless sensor networks, cooperative MIMO technology has become a research hotspot in recent years. The appropriate cooperative nodes can transmit data efficiently. Meanwhile, energy harvesting pays attention to the transmission process of network also. This paper presents the selection of cooperative nodes and cluster nodes, which offers energy balance. The node is not only the transmitter of information, but also the transmitter of energy. In addition, the paper also focuses on how to obtain the optimal energy efficiency with proposed resource allocation algorithm. Simulation results show that when cluster nodes and the cooperative nodes are more balanced, the selection algorithm realises the energy balance. The energy efficiency increases rapidly with the amount of transmitted power, and tends to be stable when it reaches 3 dBm. The cooperative MIMO technology is adopted to obtain higher network utility.
Keywords: cooperative node; wireless sensor network; WSN; energy harvesting; energy balance; energy efficiency.
International Journal of Computational Science and Engineering, 2020 Vol.22 No.4, pp.376 - 382
Received: 15 Jun 2019
Accepted: 07 Mar 2020
Published online: 26 Aug 2020 *