Incorporating D2D to Current Cellular Communication System

Mingjun Dai,Hui Wang,Bin Chen,Bailu Mao,Xiaohui Lin,Dan Shen

doi:10.1155/2016/2732917

Mingjun Dai, Hui Wang + Show 4 more

Open Access

https://doi.org/10.1155/2016/2732917

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Abstract

A device-to-device (D2D) group works as relay nodes to aid the information delivery from a source to a destination in cellular communication network. Within this system, we propose a communication mechanism to aid traditional cellular communication and correspondingly borrow some channel resource from traditional cellular communication system for D2D communication. On one side, to aid cellular communication, we propose a modified Alamouti scheme which does not modify the operation at the base station. This makes our proposed scheme consistent with previous cellular communication system. On the other side, there are many competitive D2D groups that want to potentially utilize the borrowed channel resource from traditional cellular system for delivering their own information. We model this competition as a game and utilize game theory technique to solve this competition problem.

Highlights

IntroductionData is transmitted from the source terminal to the destination terminal via a base station (BS)
In traditional cellular systems, data is transmitted from the source terminal to the destination terminal via a base station (BS)
We propose a modified Alamouti scheme which does not modify the operation at BS; namely, the operation at the BS is identical to that in traditional cellular system

Summary

Introduction

Data is transmitted from the source terminal to the destination terminal via a base station (BS). The work in [13] limits D2D’s transmission power to ensure the quality of cellular links It is shown in [14] that power control in relay assisted D2D communication may be a better choice, which benefits from high transmission capacity and power efficiency. We let the transmitter of the D2D group help the cellular communication, namely, help the source to relay his signal to the destination, which provides another link. The game theoretical framework [16, 17] can solve this problem, and multi-D2D groups power can be controlled by Nash Equilibria [18] This scheme can be utilized into high communication efficiency data collection in 5G mobile communication system [19,20,21,22], for example.

Preliminaries and System Model

Proposed Cooperation Scheme

D2D Competition within Game Theoretical Framework

Conclusion