スズキ　タカヒロ   SUZUKI, Takahiro   鈴木　隆宏 工学部 工学科 教授
言語種別	英語
発行・発表の年月	2024/07
形態種別	その他(論文)
査読	査読あり
標題	Emergency and medical data transmission with priority polling in a two-hop wireless BAN
執筆形態	単独
掲載誌名	Proceedings of ITC-CSCC 2024
出版社・発行元	CORYRIGHT: ITC-CSCC 2024 <Hosted by IEIE(Korea), IEICE(Japan), ECTI(Thailand)>
担当区分	筆頭著者
著者・共著者	◎Takahiro Suzuki
概要	This paper assesses application-level QoS when emergency and medical data are transferred using the polling MAC protocol in a two-hop IEEE 802.15.6 wireless BAN. In the IEEE 802.15.6 wireless BANs, nodes can transmit data MPDUs to the hub via a relaying node when direct transmission between the hub and nodes is not possible because of poor link quality. This paper focuses on a two-hop topology wireless BAN where a hub operates in beacon mode with superframes. A part of channel capacity in a superframe is allocated to the relaying node and the relaying node polls each node attempting to two- hop transmission. The rest capacity is used by the hub to poll each node attempting to one-hop transmission. By simulation, we first evaluate the influence of channel allocation duration for the relaying node on the average media unit (MU) delay and discuss appropriate channel allocation duration for the relaying node. We then examine the effects of priority control and additional polling for emergency and medical nodes on the application-level QoS. Simulation results show that the additional polling in addition to the priority control is effective in achieving good average MU delay for emergency and medical transmission.