| Summary: | 碩士 === 淡江大學 === 資訊工程學系碩士班 === 101 === Multi-channel MAC protocols aim to exploit frequency resources for increasing the overall throughput of wireless Ad-Hoc networks. The most common challenge for developing the multi-channel MAC protocols is the well-known rendezvous problem. In literature, some studies assumed that each device equips with one additional antenna, staying on the control channel for negotiating the channel for data exchange. However, the hardware cost has been increased. Some other works ask all devices participating in ATIM window of a predefined channel, competing for the reservation of data slots for data exchange. However, the bandwidth utilization is low since the ATIM window of all channels other than the predefined channel are not used. This paper presents an Advanced Stepwise Multi-channel MAC Protocols, called ASMC-MAC, for the Wireless Ad Hoc Networks. The proposed ASMC-MAC is developed based upon single antenna and applies stepwise channel model with home channel concept to exploit the multi-channel bandwidth resource. Performance results reveal that the proposed ASMC-MAC outperforms existing multi-channel MAC protocols in terms of network throughput, packet collision ratio, packet delay time, packet discarding, and fairness index.
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