An Improved Cooperative Transmission Scheme Using an Adjacent Base Station in Vehicular Communication System

Hyun-Jun SHIN
Hyoung-Kyu SONG

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E97-A    No.12    pp.2649-2652
Publication Date: 2014/12/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E97.A.2649
Type of Manuscript: LETTER
Category: Digital Signal Processing
cooperative communications,  OFDM,  diversity,  STBC,  CDD,  

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In this letter, a cooperative scheme based on orthogonal frequency division multiplexing (OFDM) in vehicular communication system is proposed. In the conventional scheme, a destination exploits only one base station to communicate information. The proposed scheme can use an extra source from another base station through a relay, since the restriction of power in vehicle are less than cellular device. If a destination is distant from a base station, the performance is degraded. When a destination is distant from a base station, the proposed scheme employing space time block code (STBC) and cyclic delay diversity (CDD) has a higher bit error rate (BER) performance and throughput than the conventional scheme.