Presentation 2016-01-22
Network-controlled Channel and Bandwidth Allocation Scheme for IEEE 802.11a/n/ac Wireless LANs
Hirantha Abeysekera, Munehiro Matsui, Yasushi Takatori, Masato Mizoguchi,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) The increased density of wireless LAN access points (APs) based on the IEEE 802.11 standard has induced inter-cell interference that severely degrades system performance. This problem is getting worse with the increase of IEEE 802.11n- and 802.11ac-based APs, which establish basic service sets with wider channel bandwidths than legacy 802.11a APs. In order to mitigate this problem, we have proposed an efficient radio resource allocation scheme called RATOP that can be applied to a managed wireless LAN system with a central coordinator. On the basis of channel monitoring results, capability, and data traffic information obtained from APs, the central coordinator computes the quasi-optimal frequency channel and channel bandwidth of each AP in such a way that the given utility function is maximized. In this paper we evaluate the RATOP algorithm on the coexistence scenarios of 802.11a/n/ac, and show that the RATOP works well and improves the throughput compared to legacy scheme.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) IEEE 802.11 wireless LAN / Interference / Channel allocation / Bandwidth allocation / Frequency utilization
Paper # CQ2015-107
Date of Issue 2016-01-14 (CQ)

Conference Information
Committee CQ
Conference Date 2016/1/21(2days)
Place (in Japanese) (See Japanese page)
Place (in English) University of Tsukuba
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Kyoko Yamori(Asahi Univ.)
Vice Chair Takanori Hayashi(NTT) / Hideyuki Shimonishi(NEC)
Secretary Takanori Hayashi(NEC) / Hideyuki Shimonishi(Osaka Univ.)
Assistant Masahiro Yamamoto(OKI) / Bo GU(Waseda Univ.) / Hirantha Abeysekera(NTT)

Paper Information
Registration To Technical Committee on Communication Quality
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Network-controlled Channel and Bandwidth Allocation Scheme for IEEE 802.11a/n/ac Wireless LANs
Sub Title (in English)
Keyword(1) IEEE 802.11 wireless LAN
Keyword(2) Interference
Keyword(3) Channel allocation
Keyword(4) Bandwidth allocation
Keyword(5) Frequency utilization
1st Author's Name Hirantha Abeysekera
1st Author's Affiliation Nippon Telegraph and Telephone Corporation(NTT)
2nd Author's Name Munehiro Matsui
2nd Author's Affiliation Nippon Telegraph and Telephone Corporation(NTT)
3rd Author's Name Yasushi Takatori
3rd Author's Affiliation Nippon Telegraph and Telephone Corporation(NTT)
4th Author's Name Masato Mizoguchi
4th Author's Affiliation Nippon Telegraph and Telephone Corporation(NTT)
Date 2016-01-22
Paper # CQ2015-107
Volume (vol) vol.115
Number (no) CQ-408
Page pp.pp.85-90(CQ),
#Pages 6
Date of Issue 2016-01-14 (CQ)