Application of Successive Interference Cancellation to a Packet-Recognition/Code-Acquisition Scheme in CDMA Unslotted ALOHA Systems
スポンサーリンク
概要
- 論文の詳細を見る
Packet-recognition/code-acquisition (PR/CA) is one of the most important issues in packet communication systems. In a CDMA Unslotted ALOHA system, Multiple Access Interference (MAI) may bring about errors in PR/CA. The MAI mainly stems from already recognized packets and newly arriving packets under the execution of PR/CA. This characteristic of asynchronous transmission in CDMA U-ALOHA systems implies that only one or a few packets arrive at the receiver within a short interval of a execution. Furthermore, newly arriving packets are recognized and code-acquired by using a short preamble part. Consequently, the MAI from the packets under the execution of the PR/CA will be small. Focusing on that point, this paper proposes applying the IC scheme in order to suppress the MAI from the already recognized and code-acquired packets. A performance evaluation demonstrates that such an application is valid due to the small amount of MAI from the packets under the execution of PR/CA. In addition, we demonstrates that the scheme reduces false recognition rather than mis-recognition. Such a scheme improves the performance of not only PR/CA, but also the throughput.
- 社団法人電子情報通信学会の論文
- 2005-06-01
著者
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Yamazato T
Nagoya Univ. Nagoya Jpn
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Yamazato Takaya
Nagoya University
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Yamazato Takaya
Faculty Of Science And Technology Keio University:nagoya University
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Yamazato Takaya
Ecotopia Science Institute Nagoya University
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Yamazato Takaya
School Of Engineering Nagoya University
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OKADA Hiraku
EcoTopia Science Institute, Nagoya University
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KATAYAMA Masaaki
EcoTopia Science Institute, Nagoya University
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TADOKORO Yukihiro
Department of Electrical Engineering and Computer Science, Graduate School of Engineering, Nagoya Un
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Katayama Masaaki
Ecotopia Science Institute Nagoya University
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Katayama Masaaki
Nagoya Univ. Nagoya‐shi Jpn
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Katayama M
Ecotopia Science Institute Nagoya University
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Tadokoro Yukihiro
Department Of Electrical Engineering And Computer Science Graduate School Of Engineering Nagoya Univ
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Okada Hiraku
Ecotopia Science Institute Nagoya University
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