Abstract
In the last few years, multicast device-to-device (D2D) cellular networks has become a highly attractive area of research. However, a particularly challenging class of issues in this area is data traffic, which increases due to increase in video and audio streaming applications. Therefore, there is need for smart spectrum management policies. In this paper, we consider a fractional frequency reuse (FFR) technique which divides the whole spectrum into multiple sections and allows reusing of spectrum resources between the conventional cellular users and multicast D2D users in a non-orthogonal scenario. Since conventional cellular users and multicast D2D users shared same resources simultaneously, they generate severe data traffic and high communication overhead. To overcome these issues, in this paper we propose Lagrange relaxation technique to solve the non-convex problem and combinatorial auction-based matching algorithm to select the most desirable resource reuse partners by fulfilling the quality of service (QoS) requirements for both the conventional cellular users and multicast D2D users. Then, we formulate an optimization problem to maximize the overall system performance with least computational complexity. We demonstrate that our method can exploit a higher data rate, spectrum efficiency, traffic offload rate, coverage probability, and lower computational complexity.
Highlights
Device-to-device (D2D) communication is believed to be a promising solution to address the problem of data traffic and spectrum scarcity by enabling direct communication between proximity-based devices without passing traffic through the evolved node B [1]
We introduce the fractional frequency reuse (FFR) technique, in which the whole cell region is divided into two non-overlapping regions, namely the inner region having low transmission power and the outer/edge region having high transmission power
We present the system model that adopted in the design of multicast D2D cellular networks and guaranteeing the quality of service (QoS) requirements
Summary
In an underlaying D2D communication scheme, potential D2D users reused available uplink cellular resources in a non-orthogonal manner. It provides higher data rates, coverage capacity, traffic offloading, spectral efficiency (SE), and energy efficiency (EE). The unprecedented growth of high data rate services, such as real-time video and multimedia sharing results in data snarl-ups. To deal with these issues, multicast D2D uplink cellular networks is introduced. From a technical point of view, multicast D2D can provide several advantages over unicast and broadcast D2D cellular networks in the following ways: enhance efficiency through traffic control, enable distributed applications, and optimize network performance
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