title: An adaptive fault-tolerant communication scheme for body sensor networks.
abstract: A high degree of reliability for critical data transmission is required in body sensor networks (BSNs). However, BSNs are usually vulnerable to channel impairments due to body fading effect and RF interference, which may potentially cause data transmission to be unreliable. In this paper, an adaptive and flexible fault-tolerant communication scheme for BSNs, namely AFTCS, is proposed. AFTCS adopts a channel bandwidth reservation strategy to provide reliable data transmission when channel impairments occur. In order to fulfill the reliability requirements of critical sensors, fault-tolerant priority and queue are employed to adaptively adjust the channel bandwidth allocation. Simulation results show that AFTCS can alleviate the effect of channel impairments, while yielding lower packet loss rate and latency for critical sensors at runtime.
authors.affiliation: School of Software, Dalian University of Technology, Dalian 116620, China. wgwdut@dlut.edu.cn
authors.forename: Guowei
authors.initials: G
authors.lastname: Wu
authors.forename: Jiankang
authors.initials: J
authors.lastname: Ren
authors.forename: Feng
authors.initials: F
authors.lastname: Xia
authors.forename: Zichuan
authors.initials: Z
authors.lastname: Xu
mesh_terms: D000465:Algorithms; D015374:Biosensing Techniques / Q000379:methods*; D003198:Computer Simulation; D006801:Humans