Presentation 2018-07-06
Optimal transfer schedule in a tandemly-connected sensor network with heterogeneous transmission rates
Ryota Kimura, Masato Tsuru,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) As a sensor network to monitor a large elongated area, a multi-hop wireless network model is considered in which relay nodes accommodating sensors are arranged in tandem and connected by simple wireless links, and deliver the sensor data to gateways at both ends of the line. The gateways can reliably send the data to a server using an infrastructure. In such environments, since packet losses often happen due to an attenuation/fading on each link and an interference among links, an unscheduled packet forwarding is inefficient and the success ratio of packet delivery to the server is low. In our previous report, we proposed a packet transfer scheduling consisting of a slot allocation based on node positions and link loss rates, which maximizes the uccess delivery ratio of all sensor data when using planned retransmissions without ACK against packet losses, and a forwarding packet selection based on FEC, but it is only for homogeneous links with the same transmission rate. Therefore, in this report, we propose an enhance version of the packet transfer scheduling to adapt to heterogeneous linksnot only with different physical transmission rates but with variable effective transmission rates depending on interferences. Simulations reflecting realistic wireless communications were conducted for evaluation, and have shown the usefulness of our proposal and some issues to be solved as well.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Multi-hop wireless communications / packet transfer scheduling / link transmission rate / packet loss rate
Paper # ICM2018-23
Date of Issue 2018-06-28 (ICM)

Conference Information
Committee ICM
Conference Date 2018/7/5(2days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Kiyohito Yoshihara(KDDI Research)
Vice Chair Yoichi Yamashita(NTT Neomeit) / Takumi Miyoshi(Shibaura Inst. of Tech.)
Secretary Yoichi Yamashita(KDDI Research) / Takumi Miyoshi(NTT)
Assistant Yunchen Zhu(Hitachi)

Paper Information
Registration To Technical Committee on Information and Communication Management
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Optimal transfer schedule in a tandemly-connected sensor network with heterogeneous transmission rates
Sub Title (in English)
Keyword(1) Multi-hop wireless communications
Keyword(2) packet transfer scheduling
Keyword(3) link transmission rate
Keyword(4) packet loss rate
1st Author's Name Ryota Kimura
1st Author's Affiliation Kyushu Institute of Technology(Kyutech)
2nd Author's Name Masato Tsuru
2nd Author's Affiliation Kyushu Institute of Technology(Kyutech)
Date 2018-07-06
Paper # ICM2018-23
Volume (vol) vol.118
Number (no) ICM-118
Page pp.pp.71-76(ICM),
#Pages 6
Date of Issue 2018-06-28 (ICM)