BSN '09 Proceedings of the 2009 Sixth International Workshop on Wearable and Implantable Body Sensor Networks
Analysis of the 802.11e enhanced distributed channel access function
IEEE Transactions on Communications
Characterization and modeling of on-body spatial diversity within indoor environments at 868 MHz
IEEE Transactions on Wireless Communications
An accurate and scalable analytical model for IEEE 802.15.4 slotted CSMA/CA networks
IEEE Transactions on Wireless Communications
Opportunistic CSMA/CA for achieving multi-user diversity in wireless LAN
IEEE Transactions on Wireless Communications
A study on proposed IEEE 802.15 WBAN MAC protocols
ISCIT'09 Proceedings of the 9th international conference on Communications and information technologies
OCDP: a WBAN MAC protocol for contention-based medical and CE applications
Proceedings of the 4th International Conference on Uniquitous Information Management and Communication
Toward accurate modeling of the IEEE 802.11e EDCA under finite load and error-prone channel
IEEE Transactions on Wireless Communications
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In this paper, we study interplay of prioritizing mechanisms in recently released IEEE 802.15.6 standard for Wireless Body Area Networks (WBANs). Among eight User Priorities (UPs) we study the impact of access phases lengths and CSMA/CA mechanism on the network performance. We consider a star-topology single-hop WBAN in which the hub operates in beacon mode with superframe boundaries. Our study is conducted in saturation regime and an error prone channel in order to indicate performance bounds for all UPs. We have developed an analytical model for the CSMA/CA-based Medium Access Control (MAC) layer of IEEE 802.15.6 which includes Markov chain and probabilistic models for all UPs. In order to validate the analytical model we have developed a simulation model in OPNET. We investigate the effectiveness of deploying exclusive access phases and second random access phase on the network performance. We also examine the medium utilization and normalized throughputs of all UPs. Obtained performance bounds indicate potential tradeoff between the prioritizing parameters which affect the saturation throughputs.