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題名 | Global State Routing: A New Routing Scheme for Ad-hoc Wireless Networks |
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作者 | Chen,Tsu-wei; Gerla,Mario; | 書刊名 | 中華民國資訊學會通訊 |
卷期 | 2:4 1999.12[民88.12] |
頁次 | 頁37-44 |
專輯 | Wireless Networks and System |
分類號 | 448.82 |
關鍵詞 | Global state routing; Ad-hoc wireless networks; GSR; |
語文 | 英文(English) |
英文摘要 | In an ad-hoc environment with no wired communication infrastructure, it is necessary that mobile hosts operateas routers in order to maintain the information about connectivity. However, with the presence of high mobilityand low signal/interference ratio (SIR), traditional routing schemes for wired networks are not appropriate, asthey either lack the ability to quickly reflect the changing topology, or may cause excessive overhead, whichdegrades network performance. Considering these restrictions, we propose a new scheme especially designed forrouting in an ad-hoc wireless environments. We call this scheme "Global State Routing" (GSR), where nodesexchange vectors of link states among their neighbors during routing information exchange. Based on the linkstate vectors, nodes maintain a global knowledge of the network topology and optimize their routing decisionslocally. The performance of the algorithm, studied in this paper through a series of simulations, reveals that thisscheme provides a better solution than existing approaches in a truly mobile, ad-hoc environment. |
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