Research Article
Optimizing Energy and Modulation Selection in Multi-Resolution Modulation For Wireless Video Broadcast/Multicast
@INPROCEEDINGS{10.1007/978-3-642-11664-3_6, author={James She and Pin-Han Ho and Basem Shihada}, title={Optimizing Energy and Modulation Selection in Multi-Resolution Modulation For Wireless Video Broadcast/Multicast}, proceedings={Access Networks. 4th International Conference, AccessNets 2009, Hong Kong, China, November 1-3, 2009, Revised Selected Papers}, proceedings_a={ACCESSNETS}, year={2012}, month={10}, keywords={wireless video broadcast/multicast energy allocation scalable video coding superposition coding optimization}, doi={10.1007/978-3-642-11664-3_6} }- James She
Pin-Han Ho
Basem Shihada
Year: 2012
Optimizing Energy and Modulation Selection in Multi-Resolution Modulation For Wireless Video Broadcast/Multicast
ACCESSNETS
Springer
DOI: 10.1007/978-3-642-11664-3_6
Abstract
Emerging technologies in Broadband Wireless Access (BWA) networks and video coding have enabled high-quality wireless video broadcast/multicast services in metropolitan areas. Joint source-channel coded wireless transmission, especially using hierarchical/superposition coded modulation at the channel, is recognized as an effective and scalable approach to increase the system scalability while tackling the multi-user channel diversity problem. The power allocation and modulation selection problem, however, is subject to a high computational complexity due to the nonlinear formulation and huge solution space. This paper introduces a dynamic programming framework with conditioned parsing, which significantly reduces the search space. The optimized result is further verified with experiments using real video content. The proposed approach effectively serves as a generalized and practical optimization framework that can gauge and optimize a scalable wireless video broadcast/multicast based on multi-resolution modulation in any BWA network.