| Authors |
Y. Hirayama, N. Nakagawa, H. Okada, T. Yamazato, M. Katayama |
| Title |
Performance analysis of multiple-route packet combining scheme for real-time communications in wireless multihop networks |
| Authority |
IEEE International Symposium on Personal, Indoor and Mobile Radio Communication (PIMRC), vol.1, pp.140-144 |
| Summary |
In real-time packet communications, packet retransmission is generally not used because it may produce undesired delays. In this case, however, packet errors caused by a channel may lead to a loss of transmitted information directly. Then, it is necessary to employ a technique which can reduce the influence of packet errors. We propose to employ a multiple-route packet combining scheme in real-time communications on wireless multihop networks. The scheme can achieve a diversity gain by combining multiple copies of the same packet that are transmitted along different routes. We analyze two characteristics of the proposed system. One is the average packet error probability, which is obtained as a function of elapsed time after transmission requests for copied packets are generated. The other is the required time for achieving a required packet error probability. The results are evaluated from a quality of service (QoS) point of view. From numerical results, it is shown that for a given tolerable delay, there exists a number of multiple routes that minimizes the achievable average packet error probability. Moreover, if the number of multiple routes is selected appropriately, the required time for achieving a required packet error probability can be minimized.
|
| 年月 |
2004年9月 |
| DOI/Handle |
|
| 開催場所 |
Barcelona, Spain |
| 研究テーマ |
|
| 言語 |
英語 |
| 原稿/プレゼン資料 |
 /  (ローカル限定) |
