Modeling a beacon enabled 802.15.4 cluster with bidirectional traffic

Authors:
Jelena Mišić;Shairmina Shafi;Vojislav B. Mišić
Affiliations:
Department of Computer Science, University of Manitoba, Winnipeg, Canada;Department of Computer Science, University of Manitoba, Winnipeg, Canada;Department of Computer Science, University of Manitoba, Winnipeg, Canada
Venue:
NETWORKING'05 Proceedings of the 4th IFIP-TC6 international conference on Networking Technologies, Services, and Protocols; Performance of Computer and Communication Networks; Mobile and Wireless Communication Systems
Year:
2005

Citing 2
Cited 0

Wireless Sensor Networks: Architectures and Protocols

Wireless Sensor Networks: Architectures and Protocols
Performance of IEEE 802.15.4 Beacon Enabled PAN with Uplink Transmissions in Non-Saturation Mode - Access Delay for Finite Buffers

BROADNETS '04 Proceedings of the First International Conference on Broadband Networks

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Abstract

We analyze the performance of an IEEE 802.15.4 compliant network cluster operating in the beacon enabled mode with both downlink and uplink traffic. We investigate the non-saturation regime and outline the conditions under which the network abruptly goes to saturation. The operation of the WPAN is modeled through discrete time Markov chains and the theory of M/G/1 queues. The model considers acknowledged transmissions and includes the impact of different network and traffic parameters such as the packet arrival rate, packet size, inactive period between the beacons, and the number of stations. We analyze the stability of the network queues and show that the stability of the downlink queue at the coordinator is the most critical for network operation.