Analysis on how to improve throughput efficiently in LTE-advanced network controlled D2D communication

Abstract

Recent research has been focused on development of models to enhance the resources allocated to Device to Device Communication (D2D) within LTE-A cellular network, which is considered as promising technology for improving network throughput, spectrum efficiency and transmission delay. The availability of huge number of smart phone at affordable price has increase cellular data traffic, generated by data sharing applications. Therefore, it is of critical importance to achieve efficient throughput in LTE-A networks. In this paper, we propose the possible solution to improve this throughput by analyzing and simulating a model to enable multiple concurrent D2D pairs in evolution NBs. We first evaluate mathematic model to enhance the resource allocated to D2D users. Second, we simulate D2D communication scenario in LTE-Advanced network using network simulator version 3 (NS-3) under Ubuntu environment. Throughput was measured by taking into consideration control overhead. We also investigate the throughput at high layer the Packet Data Convergence Protocol (PDCP), which is above the Radio Link Control (RLC) layer. The results show that there are benefit in channel capacity when LTE-A users are used together with multiple D2D pairs.