Presentation 2022-10-28
Study of Network Capacity in Wireless Multihop Networks with Nested Lattice and Factor Graph
Cui Zhihan, Khun Aung Thura Phyo, Lim Yuto, Tan Yasuo,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In beyond 5G network, the device-to-device communications has been actively studied. These devices are wirelessly connected to each other and can receive and send information by forming a wireless multihop network (WMN). In WMN, there are still some issues that need to be resolved, like due to the uncertainty of source node choosing the path to send the message, the performance of network capacity can degrade drastically. To solve this problem, in this paper we study a factor graph (FG) representation, which selects multihop path and a nested lattice code (NLC), which is used to reduce the error rate on the transmitted message in the WMN. Our simulation results reveal that the network capacity with FG is always higher than as well as the computation time is extremely lower than the case without FG regardless of the number of nodes. With NLC, the network capacity increases more, but computation time becomes larger.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Wireless multihop networkLattice CodeFactor graphNetwork capacityAirtime link metric
Paper # IN2022-41
Date of Issue 2022-10-20 (IN)

Conference Information
Committee ICTSSL / IN / IEE-SMF
Conference Date 2022/10/27(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Shinshu University
Topics (in Japanese) (See Japanese page)
Topics (in English) Communication Systems, etc.
Chair Tomotaka Wada(Kansai Univ.) / Kunio Hato(Internet Multifeed) / 福山 良和(明治大学)
Vice Chair Munenari Inoguchi(Toyama Univ.) / Osamu Uchida(Tokai Univ.) / Tsutomu Murase(Nagoya Univ.) / 石田 隆張(明星大学)
Secretary Munenari Inoguchi(Tokai Univ.) / Osamu Uchida(Hiroshima City Univ.) / Tsutomu Murase(KDDI Research) / 石田 隆張(Nagaoka Univ. of Tech.)
Assistant Shunichi Yokoyama(Shinshu Univ.) / / 河村 勉(日立製作所)

Paper Information
Registration To Technical Committee on Information and Communication Technologies for Safe and Secure Life / Technical Committee on Information Networks / Technical Committee on Smart Facilities
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Study of Network Capacity in Wireless Multihop Networks with Nested Lattice and Factor Graph
Sub Title (in English)
Keyword(1) Wireless multihop networkLattice CodeFactor graphNetwork capacityAirtime link metric
1st Author's Name Cui Zhihan
1st Author's Affiliation Japan Advanced Institute of Science and Technology(JAIST)
2nd Author's Name Khun Aung Thura Phyo
2nd Author's Affiliation Japan Advanced Institute of Science and Technology(JAIST)
3rd Author's Name Lim Yuto
3rd Author's Affiliation Japan Advanced Institute of Science and Technology(JAIST)
4th Author's Name Tan Yasuo
4th Author's Affiliation Japan Advanced Institute of Science and Technology(JAIST)
Date 2022-10-28
Paper # IN2022-41
Volume (vol) vol.122
Number (no) IN-233
Page pp.pp.53-58(IN),
#Pages 6
Date of Issue 2022-10-20 (IN)