在行動無線區域網路(Mobile Ad Hoc Network) 上，是以IEEE 802.11 無線通訊協定為基礎，而IEEE 802.11 通訊協定是以單頻道(Single Channel)為基礎而發展，因此封包在行動無線區域網路上會遭遇碰撞及競爭的問題而致使整體效能降低.為了能有效解決碰撞及競爭的問題，本篇論文提出了一個架構於IEEE 802.11 上的多頻道(Multi-Channel)通訊協定，利用其不同頻率道不會干擾的特性而發展出一個適應性繞送演算法。該演算法不以最少距離為考量(less hop count)，而以分散交通流量負載為基礎，
適度的分散交通流量於不同的繞送路徑上，如此可避免交通流量過度集中於單一繞送路徑而限制了整體效能。本篇論文採用NS2 為模擬平台，成功的證明在多頻道的無線環境下，適度分散交通流量能使整體系統獲得較佳效能。

Node mobility not only keeps the topology of a mobile ad hoc network changing but also complicates the routing. A previous e ective routing path may become useless due to the movement of nodes in the path. Many protocols have been proposed to solve the routing problem in mobile ad hoc networks, such as DSR, AODV, and DSDV.
These routing protocols were measured in the environments where only single-channel communication was available. Neighboring nodes cannot transmit data at the same time due to signal interference. In many other wireless environments using multiple channels,neighboring nodes are able to transfer messages simultaneously if di erent channels are used. Therefore, the least hop count is not the only factor to determine a good routing path. Reducing the number of shared intermediate transmission nodes is also important. This thesis describes an implementation of the IEEE 802.11 MAC layer with the multi-channel capability on NS2. In addition, an on-demand route algorithm for multi-channel
wireless environments was developed. Experimental results show that the ODMC algorithm improved the transmission performance in multi-channel mobile ad hoc networks.

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