National Tsing Hua University Institutional Repository:A Hierarchical Clustering Channel Assignment Scheme for Multi-channel Wireless Networks
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    NTHUR > Presidents > Chen, Wen-Tsuen (2006-2010)  > CWT Conference papers >  A Hierarchical Clustering Channel Assignment Scheme for Multi-channel Wireless Networks

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    Title: A Hierarchical Clustering Channel Assignment Scheme for Multi-channel Wireless Networks
    Authors: W. T. Chen;Chih-Jen Wu;Jen-Chu Liu
    Teacher: 陳文村
    Date: 2006
    Publisher: Institute of Electrical and Electronics Engineers
    Relation: Proceedings of 12th European Wireless, Institute of Electrical and Electronics Engineers, Athens, Greece, 2-5 April 2006
    Keywords: Interference
    Wireless LAN
    Abstract: Channel assignment is an important issue in high throughput multi-channel wireless networks. Previous works on channel assignment use a common control channel to negotiate data channels by exchanging RTS/CTS. However, those schemes require time synchronization, which are hard to achieve in wireless networks. Moreover, employing negotiation-based schemes increase the end-toend delay of channel assignment in multi-hop communications. We propose an asynchronous scheme for channel assignment based on clustering nodes into a hierarchy. Channels are allocated from top to bottom in a cluster-bycluster basis. Simulation results show that the proposed channel assignment scheme significantly outperform negotiation-based schemes in terms of packet collision, path delay, and overall throughput.
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    Appears in Collections:[Chen, Wen-Tsuen (2006-2010) ] CWT Conference papers
    [Department of Computer Science] CS Conference Papers

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