JOURNAL ARTICLE

Resource Allocation Based on Location Information in D2D Cellular Networks

Soo-Hyeong KangBangwon SeoJeong-Gon Kim

Year: 2017 Journal:   The Journal of Korean Institute of Communications and Information Sciences Vol: 42 (4)Pages: 750-757   Publisher: THE KOREAN INSTITUTE OF COMMUNICATIONS AND INFORMATION SCIENCES (KICS)

Abstract

최근 스마트폰과 모바일 단말의 수가 증가함으로서 모바일 인터넷 트래픽도 급격하게 증가하였다. D2D(Device to Device)는 급격한 인터넷 트래픽을 해결하기 위한 방법으로 주목받고 있다. D2D는 기지국이 해결해야하는 많은 트래픽 오버헤드를 줄여주고 네트워크 성능을 향상시켜준다. 그러나 D2D는 간섭이 증가하면 증가할수록 효율이 감소하는 문제를 가지고 있다. 이 논문은 업 링크 셀룰러 네트워크 환경에서 자원을 공유할 때 셀룰러의 자원효율을 높힐 수 있는 자원할당 알고리즘을 제안한다. eNB가 모든 단말의 위치를 알고 있을 때 D2D 통신은 위치 정보를 활용하여 자원할당을 한다. 제안된 기법은 D2D의 성능을 보장하기 위해 위치정보를 통하여 셀룰러 단말의 일부를 선택하게 된다. 그리고 선택된 단말만을 이용하여 자원할당을 할 단말을 찾기 시작한다. 시뮬레이션 결과에서는 D2D 성능을 최대한으로 보장하기 위해 단말 선택의 최적 값을 찾아보고 다른 자원할당기법과 비교를 해 보았다. Recently, mobile internet traffic has rapidly increased as the huge increase of the smart phone and mobile devices. D2D get attention, because D2D is known that it reduce the traffic load of the base station and also improves the reliability of the network performance. However, D2D has a problem that the efficiency decreases as interference is increased. In this paper, we propose a resource allocation scheme to use the resources efficiently when the D2D link share the cellular resources in the cellular network based the uplink. D2D communication utilizes the location information for allocating resources when the eNB know the location of all devices. The proposed scheme select some cellular user using location informations in order to ensure performance of the D2D communication. and D2D link choose cellular user that performs resource allocation using only selected cellular user. Simulation results show optimal value of resource selection in order to ensure most performance of the D2D communication.

Keywords:
Cellular network Computer network Computer science Resource allocation Telecommunications link Base station Reliability (semiconductor) Cellular communication

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Topics

Advanced MIMO Systems Optimization
Physical Sciences →  Engineering →  Electrical and Electronic Engineering
Advanced Wireless Network Optimization
Physical Sciences →  Engineering →  Electrical and Electronic Engineering
Cooperative Communication and Network Coding
Physical Sciences →  Computer Science →  Computer Networks and Communications

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