Throughput and delay analysis of two-tier slotted Aloha

Authors:
Di Zheng;Yu-Dong Yao
Affiliations:
Department of Electrical and Computer Engineering, Stevens Institute of Technology, Hoboken, NJ;Department of Electrical and Computer Engineering, Stevens Institute of Technology, Hoboken, NJ
Venue:
WOCC'09 Proceedings of the 18th international conference on Wireless and Optical Communications Conference
Year:
2009

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Abstract

Convergecast is a communication structure for wireless sensor networks (WSN) in which data flow from multiple nodes into one node. We use a two-tier slotted Aloha model to analyze the throughput and average packet delay of a convergecast mode based on slotted Aloha. In our model each node has a buffer and we use Equilibrium Point Analysis (EPA) approach to study the model. Rayleigh fading is assumed in the analysis.