A new channel access scheme for multi-user voice communications in IEEE 802.15.4 networks

Lee, Kyungrak; Maeng, Juhyun; Joe, Inwhee

doi:10.1007/978-3-642-32645-5_7

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A new channel access scheme for multi-user voice communications in IEEE 802.15.4 networks

Lee, Kyungrak;
Maeng, Juhyun;
Joe, Inwhee

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초록

The IEEE 802.15.4 standard is a low-cost, low data-rate, and low-power communication protocol in wireless personal area networks. In this paper, we propose a new channel access scheme for multi-user voice communication to improve the IEEE 802.15.4 standard. Although the previous standard protocol supports GTS (Guaranteed Time Slot) mode for periodic data transmission, it is not appropriate for multi-user voice communication. The proposed scheme facilitates a multi-user voice communication with improvement of channel utilization rate and decrease of channel access delay. The performance evaluation shows that the proposed scheme is more efficient when compared with the IEEE 802.15.4 standard in terms of data transmission ratio and channel utilization rate.

키워드

CAP; Channel access delay; CSMA/CA; IEEE 802.15.4; Synchronization; Voice communication; CAP; Channel access; Channel utilization; CSMA/CA; Data-rate; Guaranteed time slots; IEEE 802.15.4; IEEE 802.15.4 networks; IEEE 802.15.4 standards; Low-power communication; Multi-user; Performance evaluation; Standard protocols; Transmission ratios; Wireless personal area networks; Communication channels (information theory); Information technology; Speech communication; Standards; Synchronization; Telecommunication networks; Data communication systems

제목: A new channel access scheme for multi-user voice communications in IEEE 802.15.4 networks

저자: Lee, Kyungrak; Maeng, Juhyun; Joe, Inwhee

DOI: 10.1007/978-3-642-32645-5_7

발행일: 2012-08

유형: Conference Paper

저널명: Lecture Notes in Computer Science

권: 7425 LNCS

페이지: 49 ~ 56