Title: Research on optimisation of energy efficient routing protocol based on LEACH
Authors: Haibin Sun; Dijing Pan
Addresses: College of Computer Science and Engineering, Shandong University of Science and Technology, Qingdao, Shandong, China ' College of Computer Science and Engineering, Shandong University of Science and Technology, Qingdao, Shandong, China
Abstract: Although the low energy adaptive clustering hierarchy (LEACH) protocol can extend network lifetime, it still has some deficiencies. To further improve the energy efficiency of the network, a new low-power efficient routing protocol based on LEACH (LPE-LEACH) is proposed. Firstly, the optimal number of CHs is analysed by abstracting the network into a mathematical model. Secondly, the threshold for the election of CHs is redefined to guarantee that better nodes can be elected. Besides, spare CHs are introduced to decrease the probability of premature death of CHs. Next, the way ordinary nodes choose their CH is also improved. Last but not least, the method of data transmission is further enhanced. MATLAB simulation experiments show that the protocol extends network lifetime by 85%, 117.6%, 42.3% and 32.1% over LEACH, LEACH-C, LEACH-VA and IEE-LEACH, respectively.
Keywords: CH; clustering; data transmission; energy efficiency; lifetime; LEACH; low-power; network; routing protocol; sensor nodes.
International Journal of Ad Hoc and Ubiquitous Computing, 2022 Vol.41 No.2, pp.92 - 107
Received: 12 Jun 2021
Accepted: 01 Nov 2021
Published online: 09 Sep 2022 *