Distributed Multiple Access Control for the Wireless Mesh Personal Area Networks

Moo Sung PARK  Byungjoo LEE  Seung Hyong RHEE  

IEICE TRANSACTIONS on Information and Systems   Vol.E91-D   No.2   pp.258-263
Publication Date: 2008/02/01
Online ISSN: 1745-1361
DOI: 10.1093/ietisy/e91-d.2.258
Print ISSN: 0916-8532
Type of Manuscript: PAPER
Category: Networks
resource allocation,  distributed MAC,  mesh wireless PAN,  

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Mesh networking technologies for both high-rate and low-rate wireless personal area networks (WPANs) are under development by several standardization bodies. They are considering to adopt distributed TDMA MAC protocols to provide seamless user mobility as well as a good peer-to-peer QoS in WPAN mesh. It has been, however, pointed out that the absence of a central controller in the wireless TDMA MAC may cause a severe performance degradation: e.g., fair allocation, service differentiation, and admission control may be hard to achieve or can not be provided. In this paper, we suggest a new framework of resource allocation for the distributed MAC protocols in WPANs. Simulation results show that our algorithm achieves both a fair resource allocation and flexible service differentiations in a fully distributed way for mesh WPANs where the devices have high mobility and various requirements. We also provide an analytical modeling to discuss about its unique equilibrium and to compute the lengths of reserved time slots at the stable point.