Presentation 2016-03-03
Throughput Equalization for CSMA-based Wireless Networks using Mean-Field Hard-Core Model
Yiyan Liu, Toshiyuki Tanaka, K. Shashi Prabh,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In this paper, we consider the problem of throughput equalization for wireless devices in CSMA-based wireless networks. We model such networks using a mean-field hard-core model which ignores geometric structures of the network. Interference in a network is represented by a conflict graph, and an edge in the graph represents the hard-core constraint, meaning that the two nodes connected by the edge interfere with each other so that they cannot be simultaneously active. Degrees of nodes vary in a conflict graph, which causes unfairness since nodes with larger degrees suffer from more interference, and have less possibility of being active. Since one can evaluate mean activities of random networks with a prescribed degree distribution via belief propagation in the large-system limit, we propose a throughput equalization strategy on the basis of it. We also extend this strategy to the case of networks of clusters of devices. For the two types of networks, we provide results of Monte-Carlo simulations to verify the effectiveness of the proposed strategies.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) throughput equalization / CSMA / mean-field hard-core model / belief propagation
Paper # IN2015-116
Date of Issue 2016-02-25 (IN)

Conference Information
Committee NS / IN
Conference Date 2016/3/3(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Phoenix Seagaia Resort
Topics (in Japanese) (See Japanese page)
Topics (in English) General
Chair Atsushi Hiramatsu(NTT-AT) / Hidetsugu Kobayashi(NTT)
Vice Chair Hideki Tode(Osaka Pref. Univ.) / Katsunori Yamaoka(Tokyo Inst. of Tech.)
Secretary Hideki Tode(Univ. of Fukui) / Katsunori Yamaoka(NTT)
Assistant Shohei Kamamura(NTT) / Yuichi Sudo(NTT) / Kunitake Kaneko(Keio Univ.)

Paper Information
Registration To Technical Committee on Network Systems / Technical Committee on Information Networks
Language ENG-JTITLE
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Throughput Equalization for CSMA-based Wireless Networks using Mean-Field Hard-Core Model
Sub Title (in English)
Keyword(1) throughput equalization
Keyword(2) CSMA
Keyword(3) mean-field hard-core model
Keyword(4) belief propagation
1st Author's Name Yiyan Liu
1st Author's Affiliation Kyoto University(Kyoto Univ.)
2nd Author's Name Toshiyuki Tanaka
2nd Author's Affiliation Kyoto University(Kyoto Univ.)
3rd Author's Name K. Shashi Prabh
3rd Author's Affiliation Shiv Nadar University(Shiv Nadar Univ.)
Date 2016-03-03
Paper # IN2015-116
Volume (vol) vol.115
Number (no) IN-484
Page pp.pp.49-54(IN),
#Pages 6
Date of Issue 2016-02-25 (IN)