Abstract
Future generation networks will accommodate a large amount of data traffic and lower latency. In order to meet these demands, it is essential to look over current spectral use or introduce new frequency bands. Introduction of new frequency bands requires a partial or complete change of already deployed infrastructure, which will have high operation expenditure and capital expenditure. It is more convenient to find other solutions by concentrating on device-related solutions. One of the solutions to achieve higher spectra efficiency is through device-to-device (D2D) communication. This paper presents and compares recent spectral efficiency techniques in 5G through D2D communication. The main focus is on the utilization of different techniques to improve spectrum efficiency. Furthermore, the challenges in interference management, resource utilization, power control, and mode selection of the proposed work are compared.
Highlights
There has always been a constant increase in network capacity and data rates that has led to evolution from 1st Generation to 4th Generation
According to the authors in [3], 5G design must focus on five disruption technology directions: The associate editor coordinating the review of this manuscript and approving it for publication was Wael Guibene
To minimize or eliminate the interference between D2D user and cellular user different techniques can be found in literature such as optimal resource allocation, mode selection, power control based on the Quality of Service (QoS), SINR value, path loss, transmission power, position of D2D pair, distance constraint etc
Summary
There has always been a constant increase in network capacity and data rates that has led to evolution from 1st Generation to 4th Generation. INTERFERENCE CONTROL Sharing same spectral resources among D2D users and cellular users can significantly improve network performance parameters such as spectral efficiency, throughput, cell capacity, lower latency etc. To minimize or eliminate the interference between D2D user and cellular user different techniques can be found in literature such as optimal resource allocation, mode selection, power control based on the QoS, SINR value, path loss, transmission power, position of D2D pair, distance constraint etc. In [27], the authors propose effective way to reduce interference between D2D and cellular user in order to improve transmission capacity of D2D by using multi-band, uplink resource sharing in HetNet networks, using OFDMA with Frequency Hopping Spread Spectrum(HSS) and has defined D2D users for each band. We believe that the popularity of underlay D2D is due to its higher spectral efficiency
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