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Title of Journal: Wireless Pers Commun

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Abbravation: Wireless Personal Communications

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Kluwer Academic Publishers-Plenum Publishers

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DOI

10.1016/0260-6917(93)90051-3

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1572-834X

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Hybrid Dynamic Channel Assignment in Clustered Wir

Authors: ChienMin Wu
Publish Date: 2006/08/16
Volume: 42, Issue: 1, Pages: 85-105
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Abstract

A good channel assignment scheme in a multihop ad hoc network should not only guarantee successful data transmissions without collisions but also enhance the channel spatial reuse to maximize the system throughput It becomes very inefficient to use fixed channel assignment when the network size grows Therefore spatial reuse of channels become more important in a large multihop ad hoc network In this paper we consider an ad hoc network with an overlaid CDMA/TDMA structure We divide each code into time slots to form the channels A dynamic channel assignment DCA strategy called HybridDCA is proposed in a clustered ad hoc network This DCA strategy is designed to make the best use of available channels by taking advantage of the spatial reuse concept In HybridDCA the increase in spatial reuse is achieved by adding certain control overhead We show that the bandwidth saving due to channel spatial reuse is higher than the additional bandwidth spent on the control overhead

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