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In this paper, we propose a wireless network domain structure which deploys a special cell, called a gray cell. The boundaries of wireless network regions are surrounded by the gray cells, and the gray cells are supposed to belong to all of its neighboring regions. Based on this wireless domain structure, we propose a mechanism which completely removes the waste of redundant resource reservation in the wireless network domain while greatly reducing the risk of reservation disruption caused by inter-region handovers. Using simulation, it is shown that the proposed mechanism can deal with inter-region handover as effectively as it does with intra-region handover. It is also shown that the proposed mechanism outperforms existing mechanisms with respect to reservation disruption time and packet losses caused by handovers.
Communications, 2005. ICC 2005. 2005 IEEE International Conference on (Volume:5 )
Date of Conference: 16-20 May 2005