期刊名称：International Journal of Distributed Sensor Networks
印刷版ISSN：1550-1329
电子版ISSN：1550-1477
出版年度：2013
卷号：2013
DOI：10.1155/2013/205192
出版社：Hindawi Publishing Corporation
摘要：Body sensor networks (BSNs) carry heterogeneous
traffic types having diverse QoS requirements, such as delay, reliability
and throughput. In this paper, we design a priority-based
traffic load adaptive medium access control (MAC) protocol for
BSNs, namely, PLA-MAC, which addresses the aforementioned
requirements and maintains efficiency in power consumption. In
PLA-MAC, we classify sensed data packets according to their
QoS requirements and accordingly calculate their priorities. The
transmission schedules of the packets are determined based on
their priorities. Also, the superframe structure of the proposed
protocol varies depending on the amount of traffic load and
thereby ensures minimal power consumption. Our performance
evaluation shows that the PLA-MAC achieves significant improvements
over the state-of-the-art protocols.
