A new beacon scheduling mechanism for mesh Wireless Personal Area Networks based on IEEE 802.15.4

摘要

IEEE 802.15.4 protocol is a promising technology for WPANs (Wireless Personal Area Networks) with several issues to be addressed. In particular, the description on how to construct a mesh networking topology is missing. Moreover, an issue is how the router/coordinator can save energy while being effective for the entire network. This paper deals with this problem, discusses the ambiguities regarding the use of mesh topology and proposes a new collision-free beacon scheduling mechanism to construct a suited WPAN. The details of the protocol, ADCF MAC (Adaptive and Distributed Collision-Free Medium Access Control), will be fully described and analyzed.