TY - JOUR
T1 - Deterministic channel access in wimedia MAC protocol
AU - Park, Hyunhee
AU - Pack, Sangheon
AU - Kim, Yongsun
AU - Kang, Chul Hee
AU - Hwang, Sungho
N1 - Funding Information:
ACKNOWLEDGMENT This work was supported in part by the IT R&D program of MKE/IITA [2008-F-006-02, Wireless Local Area Communication Systems on Tera Hertz Band].
Publisher Copyright:
© 2010 IEEE.
PY - 2010
Y1 - 2010
N2 - WiMedia MAC protocol supports fully distributed data communications in high data rate wireless personal area networks (WPANs). WiMedia MAC includes a distributed reservation protocol (DRP) for synchronous traffic and a prioritized contention access (PCA) protocol for asynchronous traffic. Since PCA is based on the carrier-sense multiple access with collision avoidance (CSMA/CA) mechanism, it suffers from low throughput due to collision, especially when the number of devices is large. In this paper, we propose a novel channel access scheme called deterministic channel access (DCA), which determines the transmission order among devices by means of beacon frames. Since all devices follow the deterministic transmission order, collision-free channel access can be achieved and thus the throughput can be significantly improved. Extensive simulation results demonstrate that DCA outperforms PCA in terms of throughput under different situations.
AB - WiMedia MAC protocol supports fully distributed data communications in high data rate wireless personal area networks (WPANs). WiMedia MAC includes a distributed reservation protocol (DRP) for synchronous traffic and a prioritized contention access (PCA) protocol for asynchronous traffic. Since PCA is based on the carrier-sense multiple access with collision avoidance (CSMA/CA) mechanism, it suffers from low throughput due to collision, especially when the number of devices is large. In this paper, we propose a novel channel access scheme called deterministic channel access (DCA), which determines the transmission order among devices by means of beacon frames. Since all devices follow the deterministic transmission order, collision-free channel access can be achieved and thus the throughput can be significantly improved. Extensive simulation results demonstrate that DCA outperforms PCA in terms of throughput under different situations.
UR - http://www.scopus.com/inward/record.url?scp=79953187750&partnerID=8YFLogxK
U2 - 10.1109/VETECS.2010.5493782
DO - 10.1109/VETECS.2010.5493782
M3 - Conference article
AN - SCOPUS:79953187750
JO - IEEE Vehicular Technology Conference
JF - IEEE Vehicular Technology Conference
SN - 0740-0551
T2 - 2010 IEEE 71st Vehicular Technology Conference, VTC 2010-Spring
Y2 - 16 May 2010 through 19 May 2010
ER -