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27469 A Multi-channel Multiple Access Scheme Using Frequency Offsets - Modelling and Analysis
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Morshed, S. and Baratchi, M. and Mandal, P.K. and Heijenk, G.J. (2016) A Multi-channel Multiple Access Scheme Using Frequency Offsets - Modelling and Analysis. In: Proceedings of the 12th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob 2016, 17-19 Oct, 2016, New York, USA. IEEE Computer Society. ISBN 978-1-5090-0725-7

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Official URL: http://dx.doi.org/10.1109/WiMOB.2016.7763230

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Abstract

A system using frequency offset based transmit- reference (TR) modulation allows multiple nodes to transmit simultaneously and asynchronously without any mutual timing coordination. Thus, such a system provides inherent capabilities for a multiple access in the medium access control (MAC) layer to coordinate the shared use of the common wireless medium among the nodes of the wireless sensor network (WSN). However, certain characteristics of a frequency offset based system limits its performance, for example, the number of available frequency offsets is limited as it depends on several system parameters, and the number of simultaneous communications using different frequency offsets is limited due to inter-user interference. In this paper, we introduce an extended version of the performance model of a basic slotted- Aloha system, that captures the basic phenomena of a multi- channel system with a limited set of channels and a limit to the number of simultaneously used channels. An analysis of this model reveals the potential of a MAC protocol for TR modulation with frequency offsets.

Item Type:Conference or Workshop Paper (Full Paper, Talk)
Research Group:EWI-DACS: Design and Analysis of Communication Systems, EWI-HS: Hybrid Systems
Research Program:CTIT-General
Research Project:WALNUT: Wireless Ad-hoc Links using robust Noise-based Ultra-wideband Transmission
Uncontrolled Keywords:Multiple access technique, frequency-offset, multi-channel S-Aloha, MAC protocol, TR-MAC.
ID Code:27469
Status:Published
Deposited On:07 December 2016
Refereed:Yes
International:Yes
More Information:statisticsmetis

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