A Combined Power Control and Resource Allocation Scheme for D2D Communication Underlaying an LTE-Advanced System

Jaheon GU  Sueng Jae BAE  Syed Faraz HASAN  Min Young CHUNG  

Publication
IEICE TRANSACTIONS on Communications   Vol.E96-B   No.10   pp.2683-2692
Publication Date: 2013/10/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E96.B.2683
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Wireless Communication Technologies
Keyword: 
device-to-device (D2D) communication,  sum-rate,  transmit power control,  resource allocation,  

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Summary: 
The underlaying architecture of Device-to-device (D2D) communication supports direct communication between users by reusing the radio resources of the LTE-A system. Despite the co-channel interference between the conventional cellular user equipment (CUE) and the D2D communication user equipment (DUE), LTE-A system can improve the combined data rate of CUEs and DUEs through effective transmit power control and resource allocation schemes. In this paper, we propose a novel mechanism, which combines the resource allocation scheme with the transmit power control scheme to maximize the overall data rate (defined as the sum-rate in the paper). We perform system-level simulations to determine the effectiveness of the proposed mechanism in terms of increasing the sum-rate. The simulation result shows that the proposed mechanism can improve the sum-rate in an underlaying LTE-A system that supports D2D communication.