A Scheme to Evaluate Cell Throughput of Multi-Rate Wireless LAN Systems with CSMA/CA(Wireless Communication Technology)
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概要
- 論文の詳細を見る
This paper proposes a new scheme that can evaluate the cell throughput performance of wireless local area network (LAN) systems, which use carrier sense multiple access/collision avoidance (CSMA/CA) and multiple transmission bit-rates (multi-rate). We extend the interference model of the conventional scheme in order to deal with interference more accurately in multi-cell environments. Unlike the conventional scheme, the proposed scheme is able to handle multi-rate systems. We use the proposed scheme to evaluate the IEEE 802.11a system and systems whose signal bandwidth is expanded from that of the IEEE 802.11a system. We find that a system with 35(75) MHz signal-bandwidth achieves about 1.3(1.25) times higher cell throughput than the IEEE 802.11 a system. Furthermore, the system with 35(75) MHz signal-bandwidth is also shown to have the potential to achieve up to 1.5(1.8) times higher cell throughput performance than the IEEE 802.11a system if the transmission efficiency on the media access control (MAC) layer is assumed to be ideal. It is concluded that the proposed scheme confirms that the approach to expand the signal bandwidth of the IEEE 802.11a system is effective to improve the cell throughput performance. This result is virtually impossible to derive with the conventional scheme.
- 社団法人電子情報通信学会の論文
- 2004-04-01
著者
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OHTA Atsushi
NTT Network Innovation Laboratories, NTT Corporation
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ONIZAWA Takeshi
NTT Access Network Service Systems Laboratories, NTT Corporation
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HORI Satoru
NTT Access Network Service Systems Laboratories
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AIKAWA Satoru
NTT Access Network Service Systems Laboratories, NTT Corporation
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Hori Satoru
Ntt Access Network Service Systems Laboratories Ntt Corporation
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Ohta Atsushi
Ntt Network Innovation Laboratories Ntt Corporation
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Ohta Atsushi
Ntt Corporation
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Ohta A
Mitsubishi Electric Corp. Itami‐shi Jpn
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Onizawa Takeshi
Ntt Access Network Service Systems Laboratories Ntt Corporation
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FUJITA Takafumi
NTT Access Network Service Systems Laboratories, NTT Corporation
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Fujita T
Ntt Network Innovation Laboratories Ntt Corporation
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OHTA Atsushi
NTT Access Network Service Systems Laboratories, NTT Corporation
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Ohta A
Ntt Network Innovation Laboratories Ntt Corporation
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Onizawa T
Ntt Access Network Service Systems Laboratories Ntt Corporation
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Onizawa Takeshi
Ntt Corp. Yokosuka‐shi Jpn
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Aikawa S
Ntt Access Network Service Systems Laboratories Ntt Corporation
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Aikawa Satoru
Ntt Access Network Service Systems Laboratories Ntt Corporation
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Ohta Atsushi
Ntt Access Network Service Systems Laboratories
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ONIZAWA Takeshi
NTT Access Network Service Systems Laboratories
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