Presentation 2014-09-12
Effectiveness of synchronous random access control scheme in MU-MIMO
Y. MORINO, T. OGAWA, K. NISHIMORI, T. HIRAGURI,
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Abstract(in English) The Multi-User Multiple Input Multiple Output (MU-MIMO) transmission technology has been standardized in the Wireless Local Area Network (WLAN) of IEEE802.11ac standard. MU-MIMO is will achieve very-high-speed transmission link rate. Moreover, this technology can transmit differential data to multiple users (terminals) concurrently by using Space Division Multiple Access (SDMA). However, if MU-MIMO is used in WLAN, there are some issues. One of issues is delay of data generation time, because data of multi user are not generated concurrently. Second of issues is delay of channel estimation time. These delay time are overheads in transmission procedure, and transmission efficiency will be degraded. In order to resolve these issues, channel estimation processing is immediately performed when initial data was generated. The synchronous random access scheme is proposed in order to decrease overhead time. In this paper, band occupancy rate was evaluated of conventional and proposed scheme, and examined the scope of the proposed scheme.
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Keyword(in English) Wireless LAN / MU-MIMO / Access control
Paper # CQ2014-56
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Committee CQ
Conference Date 2014/9/4(1days)
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Registration To Communication Quality (CQ)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Effectiveness of synchronous random access control scheme in MU-MIMO
Sub Title (in English)
Keyword(1) Wireless LAN
Keyword(2) MU-MIMO
Keyword(3) Access control
1st Author's Name Y. MORINO
1st Author's Affiliation Faculty of Engineering, Nippon Institute of Technology()
2nd Author's Name T. OGAWA
2nd Author's Affiliation Faculty of Engineering, Nippon Institute of Technology
3rd Author's Name K. NISHIMORI
3rd Author's Affiliation Faculty of Engineering, Niigata University
4th Author's Name T. HIRAGURI
4th Author's Affiliation Faculty of Engineering, Nippon Institute of Technology
Date 2014-09-12
Paper # CQ2014-56
Volume (vol) vol.114
Number (no) 209
Page pp.pp.-
#Pages 4
Date of Issue