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著者 平山泰弘,岡田啓,山里敬也,片山正昭
題目 無線マルチホップネットワークにおける複数経路パケット合成法のための経路選択基準
出典 情報理論とその応用シンポジウム, vol.1, pp.151-154
要約
Authors Y. Hirayama, H. Okadaa, T. Yamazato, and M. Katayama
Title A Study on Route Selection Metrics for the Multiple-Route Packet
Authority Symposium on Information Theory and Its Applications (SITA), vol.1, pp.151-154
Summary The multiple-route packet combining (MRPC) is a diversity combining and error correction scheme for wireless multihop networks. In this scheme, multiple replicas of a coded packet are transmitted along different disjoint routes from a source node. These replicas are received, combined and decoded by the destination. If a conventional multipath routing protocol, such as MDSR, is employed, smaller hop routes tend to be selected to transmit packets. However, the performance of MRPC depends on the packet reception probability and the bit error rate of each route. It is therefore expected that the performance improves if these statics are utilized as a route selection metric. In this paper, we compare the packet error performance of MRPC for different route selection metrics. Three different metrics are considered, that is, the log-likelihood ratio (LLR), the packet reception probability, and the number of hops of a route. From the performance comparison, we show that LLR is the best metric when packet decoding errors are dominant over packet losses.
年月 2005年11月
DOI/Handle
開催場所 沖縄
研究テーマ
言語 日本語
原稿/プレゼン資料 / (ローカル限定)


山里研究室/岡田研究室 研究業績データベースシステム