title: Optimal base station placement for wireless sensor networks with successive interference cancellation.
abstract: We consider the base station placement problem for wireless sensor networks with successive interference cancellation (SIC) to improve throughput. We build a mathematical model for SIC. Although this model cannot be solved directly, it enables us to identify a necessary condition for SIC on distances from sensor nodes to the base station. Based on this relationship, we propose to divide the feasible region of the base station into small pieces and choose a point within each piece for base station placement. The point with the largest throughput is identified as the solution. The complexity of this algorithm is polynomial. Simulation results show that this algorithm can achieve about 25% improvement compared with the case that the base station is placed at the center of the network coverage area when using SIC.
authors.affiliation: School of Computer and Information, Hefei University of Technology, Hefei 230009, China. shilei@hfut.edu.cn.
authors.forename: Lei
authors.initials: L
authors.lastname: Shi
authors.affiliation: School of Computer and Information, Hefei University of Technology, Hefei 230009, China. jianjun@hfut.edu.cn.
authors.forename: Jianjun
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Intelligent Automation Inc., 15400 Calhoun Drive, Rockville, MD 20855, USA. yshi@vt.edu.
authors.forename: Yi
authors.initials: Y
authors.lastname: Shi
authors.affiliation: School of Computer and Information, Hefei University of Technology, Hefei 230009, China. dingxu@ialab.hfut.edu.cn.
authors.forename: Xu
authors.initials: X
authors.lastname: Ding
authors.affiliation: School of Computer and Information, Hefei University of Technology, Hefei 230009, China. wzc@ialab.hfut.edu.cn.
authors.forename: Zhenchun
authors.initials: Z
authors.lastname: Wei