Enhancement of the IEEE 802.15.4 MAC Protocol for Scalable Data Collection in Dense Sensor Networks

Kiran  Yedavalli; Bhaskar Krishnamachari

6th International ICST Symposium on Modeling and Optimization

Research Article

Enhancement of the IEEE 802.15.4 MAC Protocol for Scalable Data Collection in Dense Sensor Networks

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@INPROCEEDINGS{10.4108/ICST.WIOPT2008.2982,
    author={Kiran  Yedavalli and Bhaskar Krishnamachari},
    title={Enhancement of the IEEE 802.15.4 MAC Protocol for Scalable Data Collection in Dense Sensor Networks},
    proceedings={6th International ICST Symposium on Modeling and Optimization},
    publisher={IEEE},
    proceedings_a={WIOPT},
    year={2008},
    month={8},
    keywords={Back Energy consumption Mathematical model Media Access Protocol Multiaccess communication Network topology Sensor systems Switches Throughput Transmitters},
    doi={10.4108/ICST.WIOPT2008.2982}
}

Kiran Yedavalli
Bhaskar Krishnamachari
Year: 2008
Enhancement of the IEEE 802.15.4 MAC Protocol for Scalable Data Collection in Dense Sensor Networks
WIOPT
IEEE
DOI: 10.4108/ICST.WIOPT2008.2982

Kiran Yedavalli¹^,*, Bhaskar Krishnamachari¹^,*

1: Department of Electrical Engineering - Systems, University of Southern California, Los Angeles, California, 90089

*Contact email: kyedaval@usc.edu, bkrishna@usc.edu

Abstract

We find that the IEEE 802.15.4 MAC protocol performs poorly for one-hop data collection in dense sensor networks, showing a steep deterioration in both throughput and energy consumption with increasing number of transmitters. We propose a channel feedback-based enhancement to the protocol that is significantly more scalable, showing a relatively flat, slowchanging total system throughput and energy consumption as the network size increases. A key feature of the enhancement is that the back-off windows are updated after successful transmissions instead of collisions. The window updates are based on an optimality criterion we derive from mathematical modeling of p-persistent CSMA.

Keywords: Back Energy consumption Mathematical model Media Access Protocol Multiaccess communication Network topology Sensor systems Switches Throughput Transmitters

Published: 2008-08-01
Publisher: IEEE
Modified: 2010-05-16

: http://dx.doi.org/10.4108/ICST.WIOPT2008.2982