By Topic

Distortion-aware MIMO link adaptation for enhanced multimedia communications

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Oyman, O. ; Wireless Commun. Lab., Intel Corp., Santa Clara, CA, USA ; Foerster, J.

In wireless multimedia communications, optimizing the quality of user experience is a major design goal, which is often quantified by the end-to-end distortion between the actual multimedia source at the encoder and its reconstructed version at the decoder. Joint source-channel coding (JSCC) techniques aim to optimize codec and radio system parameters in order to minimize end-to-end distortion and yield enhanced quality of user experience when compared with separate source-channel coding techniques. With the motivation of applying JSCC-based cross-layer optimizations to PHY/MAC layer design for practical wireless systems, this paper proposes new techniques for MIMO link adaptation toward enhanced multimedia communications. In particular, we propose new distortion-aware MIMO link adaptation techniques toward the selection of modulation and coding schemes (MCS) and MIMO space-time modulation (including MIMO diversity and spatial multiplexing) schemes with the objective of minimizing end-to-end distortion, different from classical approaches that aimed for other optimizations such as maximizing spectral efficiency or goodput. Furthermore, we investigate the performance of distortion-aware MIMO link adaptation in realistic link-level simulation (LLS) and system-level simulation (SLS) environments based on orthogonal frequency division multiplexing (OFDM) under broadband frequency-selective fading with special focus on multicast broadcast services (MBS), and demonstrate their advantages over goodput-maximizing MIMO link adaptation techniques in terms of reduced end-to-end distortion and higher peak signal-to-noise ratio (PSNR).

Published in:

Personal, Indoor and Mobile Radio Communications Workshops (PIMRC Workshops), 2010 IEEE 21st International Symposium on

Date of Conference:

26-30 Sept. 2010