title: ECS: efficient communication scheduling for underwater sensor networks.
abstract: TDMA protocols have attracted a lot of attention for underwater acoustic sensor networks (UWSNs), because of the unique characteristics of acoustic signal propagation such as great energy consumption in transmission, long propagation delay and long communication range. Previous TDMA protocols all allocated transmission time to nodes based on discrete time slots. This paper proposes an efficient continuous time scheduling TDMA protocol (ECS) for UWSNs, including the continuous time based and sender oriented conflict analysis model, the transmission moment allocation algorithm and the distributed topology maintenance algorithm. Simulation results confirm that ECS improves network throughput by 20% on average, compared to existing MAC protocols.
authors.affiliation: Department of Computer Science, Ocean University of China, Qingdao 266100, China. honglu@ouc.edu.cn
authors.forename: Lu
authors.initials: L
authors.lastname: Hong
authors.forename: Feng
authors.initials: F
authors.lastname: Hong
authors.forename: Zhongwen
authors.initials: Z
authors.lastname: Guo
authors.forename: Zhengbao
authors.initials: Z
authors.lastname: Li
mesh_terms: D000465:Algorithms; D003195:Computer Communication Networks / Q000295:instrumentation*; D003198:Computer Simulation; D012815:Signal Processing, Computer-Assisted; D013997:Time Factors; D014867:Water
chemical_list: D014867:Water