Scalable Video Coding (SVC) Signal Transmission Scheme Using UAPA in a MIMO-OFDM System

Kyujin LEE  Dongho CHA  Kyesan LEE  

Publication
IEICE TRANSACTIONS on Communications   Vol.E95-B   No.11   pp.3519-3526
Publication Date: 2012/11/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E95.B.3519
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Wireless Communication Technologies
Keyword: 
spread MIMO,  OFDM,  SVC,  UAPA,  

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Summary: 
MIMO-OFDM systems are widely used in next generation wireless communications due to their high data rates, spatial division multiplexing, and robustness against channel fading. Moreover, multimedia video service is developing very quickly, as are service demands. Consequently, in order to satisfy these demands, we use a MIMO-OFDM system with SDM characteristic to transmit Scalable Video Coding (SVC) signals; our approach maximizes throughput and greatly improves video quality. We propose an Unequal Antenna Power Allocation (UAPA) scheme to improve system performance by increasing the PSNR compared to that of conventional equal power transmission systems and to efficiently utilize the power. We evaluate the performance of the proposed scheme using simulations. The results show that the proposed system provides superior performance compared to conventional systems.