Abstract

Device-to-device (D2D) communication is considered as one of the key enabling technologies for fifth-generation (5G) networks as it allows data offloading generated by the huge number of connected devices. In this respect, group-oriented services are among the most interesting usage scenarios. Indeed, D2D can improve the performance of the conventional multicast scheme (CMS) in cellular networks, which is known to suffer from low spectral efficiency. Security is a further key field of investigation for 5G systems, as any threat to privacy and security may lead to both deteriorated user experience and inefficient network resources’ utilization. Security issues are even more in focus for D2D connections between devices that are in mutual proximity. To improve the CMS performance and also sustain security requirements of the 5G network, this work proposes a secure D2D data transmission algorithm. Making use of mechanisms such as encryption and signature, this algorithm aims to protect the exchanged data and the privacy of the devices involved in the communication. A simulation campaign conducted using MATLAB shows the ability of the proposed solution to take advantage of the establishment of secure D2D communications and efficiently utilize network resources.

Highlights

  • Future fifth-generation (5G) networks are expected to support a huge number of heterogeneous connected devices in manifold usage scenarios

  • D2D can improve the performance of the conventional multicast scheme (CMS) in cellular networks, which is known to suffer from low spectral efficiency

  • In our earlier work in [5], we proposed a D2D-aided radio resource management policy for evolved Multimedia Broadcast Multicast Service (eMBMS), called D2D-enhanced Conventional Multicast Scheme (CMS) with Single Frequency (D2D-SF), with the aim to increase the aggregate data rate of CMS while maintaining the CMS short-term fairness

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Summary

Introduction

Future fifth-generation (5G) networks are expected to support a huge number of heterogeneous connected devices in manifold usage scenarios. In our earlier work in [5], we proposed a D2D-aided radio resource management policy for eMBMS, called D2D-enhanced CMS with Single Frequency (D2D-SF), with the aim to increase the aggregate data rate of CMS while maintaining the CMS short-term fairness This protocol includes a first step, in which users with the best channel conditions are served via CMS directly by the eNodeB. We enhance the work in [5] by selecting the relay node (i.e., the RN, which is in charge to forward data sent by the eNB towards users unable to directly receive the multicast transmission) in each D2D cluster on the basis of its trustworthiness measured, by means of security mechanisms, as their capability of reliably acting as data forwarders.

Related Work
Background
Diffie–Hellman Solution for Security
The Proposed eCMS-sD2D Protocol
Performance Evaluation
Findings
Conclusions
Full Text
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