Experimental Evaluation of Decision Criteria for WLAN Handover : Signal Strength and Frame Retransmission(Network)
スポンサーリンク
概要
- 論文の詳細を見る
In ubiquitous networks, Mobile Nodes (MNs) often suffer from performance degradation due to the following two reasons: (1) reduction of signal strength by the movement of an MN and intervening objects, and (2) radio interference with other WLANs. Therefore, handover initiation based on quick and reliable detection of the deterioration in a wireless link condition arising from the above two reasons is essential for achieving seamless handover. In previous studies, we focused on a handover decision criterion and described the problems related to the two existing decision criteria. Furthermore, we showed the effectiveness of the number of frame retransmissions through simulation experiments. However, a comparison of the signal strength and the number of frame retransmissions could not be examined due to the unreliability of the signal strength in simulations. Therefore, in the present paper, by employing FTP and VoIP applications, we compare the signal strength and the number of frame retransmissions as a handover decision criterion with experiments in terms of (1) and (2) in a real environment. Finally, we clarify the problem of the signal strength in contrast to the effectiveness of the number of frame retransmissions as a handover decision criterion.
- 社団法人電子情報通信学会の論文
- 2007-12-01
著者
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OIE Yuji
Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology
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KASHIHARA Shigeru
Graduate School of Information Scinece, Nara Institute of Science and Technology
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OIE Yuji
Dept. of Computer Science & Electronics, Kyushu Institute of Technology
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Oie Yuji
Kyushu Inst. Of Technol. Iizuka‐shi Jpn
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Oie Yuji
Dept. Of Computer Science & Electronics Kyushu Institute Of Technology
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Tsukamoto Kazuya
Graduate School Of Computer Science And Electronics Department Of Computer Science And Electronics K
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Kashihara Shigeru
Graduate School Of Information Science Nara Institute Of Science And Technology
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Kashihara Shigeru
Graduate School Of Information Science Nara Institute Of Science And Technology (naist)
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Tsukamoto Kazuya
Kyushu Inst. Of Technol. Fukuoka Jpn
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TSUKAMOTO Kazuya
Dept. of Computer Science and Electronics, Kyushu Institute of Technology
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YAMAGUCHI Takeshi
Dept. of Computer Science and Electronics, Kyushu Institute of Technology
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Yamaguchi Takeshi
Dept. Of Computer Science And Electronics Kyushu Institute Of Technology
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