Download or read book Energy Efficiency and the Role of Quality Metrics in Wireless Video Communications written by Yiftach Eisenberg and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, there has been a dramatic growth in network-based video applications including on-demand video streaming, video phones, distance learning, and video conferencing. In this dissertation, two important aspects of wireless video communications are addressed: energy efficiency and video quality assessment. In mobile communications, energy consumption is a critical design issue. Developing techniques for efficiently utilizing transmission energy can prolong battery life, reduce interference between users, and increase the overall network capacity. We present a joint source coding and transmission power allocation scheme for wireless video communications. This cross-layer design can provide significant energy savings over approaches which consider source coding and power allocation separately.