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DFMAC: DTN-Friendly Medium Access Control for Wireless Local Area Networks Supporting Voice/Data Services

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Abstract

In this paper, we consider a wireless communication network for both local nodes residing in densely populated hot spots and nomadic nodes roaming in a large area. Wireless local area networks (WLANs) are deployed in the hot spots, while a delay/ disruption tolerant network (DTN) provides services to nomadic nodes in the large area with low node density. We investigate the radio resource allocation for a DTN/WLAN integrated network, and propose a DTN-friendly medium access control (DFMAC) scheme for the hot spots supporting voice/data services. Analytical models are established to characterize the interactions between a DTN and WLANs under the proposed DFMAC. Numerical and simulation results demonstrate that our proposed MAC scheme can provide a deterministic delay guarantee for the voice services of local nodes, while achieving an efficient performance tradeoff for the data services between nomadic nodes and local nodes.

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Acknowledgements

The authors wish to thank Mr. Ho Ting Cheng for his helpful suggestions which improved the quality of this paper. This work was supported by a research grant from the Natural Science and Engineering Research Council (NSERC) of Canada.

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Authors and Affiliations

  1. Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, ON, Canada, N2L 3G1

    Hao Liang & Weihua Zhuang

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  1. Hao Liang
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  2. Weihua Zhuang
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Correspondence to Hao Liang.

Additional information

This paper was presented in part at IEEE International Conference on Communications and Networking in China (CHINACOM) 2009.

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Liang, H., Zhuang, W. DFMAC: DTN-Friendly Medium Access Control for Wireless Local Area Networks Supporting Voice/Data Services. Mobile Netw Appl 16, 531–543 (2011). https://doi.org/10.1007/s11036-010-0241-y

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