ABMP: adaptive bitmap protocol within TDMA for mobile underwater sensor networks
Xianmin Wei1, Hong Lu1, Hong Feng2
COMPUTER MODELLING & NEW TECHNOLOGIES 2014 18(5) 111-117
1School of computer engineering, Weifang University, 261061, Weifang, China
2School of Information Science and Engineering, Ocean University of China, 266100, Qingndao, China
Media access control (MAC) protocol design is one of hot topics in the research of underwater acoustic sensor networks (UWSN). The major challenge is the phenomenon of space-time uncertainty caused by the long delay in underwater signal propagation, where the occurrence of frame conflict is determined by not only two nodes’ transmission time, but also by their locations. In this paper, the adaptive bitmap protocol-based(ABMP) within time division multiple access (TDMA) was proposed for UWSN, with specialized space-time uncertainty among mobile underwater nodes reducing channel idle time and improving energy efficiency and transmission efficiency. Finally, simulation experiments are conducted to present that the proposed protocol has better communication efficiency and energy efficiency, compared with other MAC protocols of Token-TDMA and T-lohi in terms of network traffic, end-to-end delay and energy efficiency.