A fast and accurate performance analysis of beaconless IEEE 802.15.4 multi-hop networks

Srivastava, Rachit and Ladwa, Sanjay Motilal and Bhattacharya, Abhijit and Kumar, Anurag (2016) A fast and accurate performance analysis of beaconless IEEE 802.15.4 multi-hop networks. In: AD HOC NETWORKS, 37 (2). pp. 435-459.

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Abstract

We develop an approximate analytical technique for evaluating the performance of multi-hop networks based on beaconless IEEE 802.15.4 ( the ``ZigBee'' PHY and MAC), a popular standard for wireless sensor networks. The network comprises sensor nodes, which generate measurement packets, relay nodes which only forward packets, and a data sink (base station). We consider a detailed stochastic process at each node, and analyse this process taking into account the interaction with neighbouring nodes via certain time averaged unknown variables (e.g., channel sensing rates, collision probabilities, etc.). By coupling the analyses at 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. The model incorporates packet generation at the sensor nodes and queues at the sensor nodes and relay nodes. We demonstrate the accuracy of our model by an extensive comparison with simulations. As an additional assessment of the accuracy of the model, we utilize it in an algorithm for sensor network design with quality-of-service (QoS) objectives, and show that designs obtained using our model actually satisfy the QoS constraints (as validated by simulating the networks), and the predictions are accurate to well within 10% as compared to the simulation results in a regime where the packet discard probability is low. (C) 2015 Elsevier B.V. All rights reserved.

Item Type:	Journal Article
Publication:	AD HOC NETWORKS
Publisher:	ELSEVIER SCIENCE BV
Additional Information:	Copy right for this article belongs to the ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Keywords:	Wireless sensor networks; Performance analysis of multi-hop CSMA networks; Design of multihop CSMA networks
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	14 Jan 2016 05:01
Last Modified:	14 Jan 2016 05:01
URI:	http://eprints.iisc.ac.in/id/eprint/53072

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