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Performance analysis of beacon-less IEEE 802.15.4 multi-hop networks

Srivastava, Rachit and Kumar, Anurag (2012) Performance analysis of beacon-less IEEE 802.15.4 multi-hop networks. In: 2012 Fourth International Conference on Communication Systems and Networks (COMSNETS), 3-7 Jan. 2012, Bangalore.

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Official URL: http://dx.doi.org/10.1109/COMSNETS.2012.6151310

Abstract

We develop an approximate analytical technique for evaluating the performance of multi-hop networks based on beacon-less CSMA/CA as standardised in IEEE 802.15.4, a popular standard for wireless sensor networks. The network comprises sensor nodes, which generate measurement packets, and relay nodes which only forward packets. We consider a detailed stochastic process at each node, and analyse this process taking into account the interaction with neighbouring nodes via certain unknown variables (e.g., channel sensing rates, collision probabilities, etc.). By coupling these analyses of the various nodes, we obtain fixed point equations that can be solved numerically to obtain the unknown variables, thereby yielding approximations of time average performance measures, such as packet discard probabilities and average queueing delays. Different analyses arise for networks with no hidden nodes and networks with hidden nodes. We apply this approach to the performance analysis of tree networks rooted at a data sink. Finally, we provide a validation of our analysis technique against simulations.

Item Type: Conference Paper
Additional Information: Copyright of this article belongs to IEEE.
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Depositing User: Francis Jayakanth
Date Deposited: 06 Feb 2014 07:43
Last Modified: 06 Feb 2014 07:43
URI: http://eprints.iisc.ac.in/id/eprint/48340

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