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Sensors 2018, 18(5), 1473;

PS-CARA: Context-Aware Resource Allocation Scheme for Mobile Public Safety Networks

Department of Electrical Engineering, COMSATS University, Wah Campus, Wah Cantonment 47040, Pakistan
Department of Electrical Engineering, COMSATS University, Attock Campus, Attock 43600, Pakistan
Department of Electronics Engineering, Inha University, Incheon 22212, Korea
School of Electronics, Electrical Engineering and Computer Science, Queen’s University Belfast, University Rd, Belfast BT7 1NN, UK
Author to whom correspondence should be addressed.
Received: 30 March 2018 / Revised: 1 May 2018 / Accepted: 4 May 2018 / Published: 8 May 2018
(This article belongs to the Special Issue Sensor Networks for Collaborative and Secure Internet of Things)
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The fifth-generation (5G) communications systems are expecting to support users with diverse quality-of-service (QoS) requirements. Beside these requirements, the task with utmost importance is to support the emergency communication services during natural or man-made disasters. Most of the conventional base stations are not properly functional during a disaster situation, so deployment of emergency base stations such as mobile personal cell (mPC) is crucial. An mPC having moving capability can move in the disaster area to provide emergency communication services. However, mPC deployment causes severe co-channel interference to the users in its vicinity. The problem in the existing resource allocation schemes is its support for static environment, that does not fit well for mPC. So, a resource allocation scheme for mPC users is desired that can dynamically allocate resources based on users’ location and its connection establishment priority. In this paper, we propose a public safety users priority-based context-aware resource allocation (PS-CARA) scheme for users sum-rate maximization in disaster environment. Simulations results demonstrate that the proposed PS-CARA scheme can increase the user average and edge rate around 10.3% and 32.8% , respectively because of context information availability and by prioritizing the public safety users. The simulation results ensure that call blocking probability is also reduced considerably under the PS-CARA scheme. View Full-Text
Keywords: context-aware resource allocation; interference reduction; internet-of-things; public safety; 5G systems context-aware resource allocation; interference reduction; internet-of-things; public safety; 5G systems

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Kaleem, Z.; Khaliq, M.Z.; Khan, A.; Ahmad, I.; Duong, T.Q. PS-CARA: Context-Aware Resource Allocation Scheme for Mobile Public Safety Networks. Sensors 2018, 18, 1473.

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