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Enhancing Reliability of Tactical MANETs by Improving Routing Decisions

College of Engineering, Bay Campus, Swansea University, Swansea SA1 8EN, UK
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J. Low Power Electron. Appl. 2018, 8(4), 49; https://doi.org/10.3390/jlpea8040049
Received: 25 October 2018 / Revised: 19 November 2018 / Accepted: 23 November 2018 / Published: 28 November 2018
Mobile ad-hoc networks (MANETs) have been primarily designed to enhance tactical communications in a battlefield. They provide dynamic connectivity without requiring any pre-existing infrastructure. Their multi-hop capabilities can improve radio coverage significantly. The nature of tactical MANET operations requires more specialized routing protocols compared to the ones which are used in commercial MANET. Routing decisions in MANETs are usually conditioned on signal-to-interference-plus-noise ratio (SINR) measurements. In order to improve routing decisions for use in highly dynamic tactical MANETs, this paper proposes to combine two different metrics to achieve reliable multicast in multi-hop ad hoc networks. The resulting protocol combining received signal strength (RSS) with SINR to make routing decisions is referred to as Link Quality Aware Ad-hoc On-Demand Distance Vector (LQA-AODV) routing. The proposed routing protocol can quickly adapt to dynamic changes in network topology and link quality variations often encountered in tactical field operations. Using computer simulations, the performance of proposed protocol is shown to outperform other widely used reactive routing protocols assuming several performance metrics. View Full-Text
Keywords: connectivity; link quality; network metric; routing decision; tactical MANET connectivity; link quality; network metric; routing decision; tactical MANET
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Al-Shehri, S.M.; Loskot, P. Enhancing Reliability of Tactical MANETs by Improving Routing Decisions. J. Low Power Electron. Appl. 2018, 8, 49.

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