无线多媒体系统优化设计理论与方法

Wireless multimedia communication is a newly emerging research topic worldwide. Because of the limited channel resources and non-guaranteed channel quality, there is a great challenge in achieving high performance multimedia communication in wireless environment. Traditional algorithms and system design likely find difficulties in a tradeoff between real-time application, resource utilisation and implementation complexity. This research, with a combination of theoretical study and engineering background while targeting global optimization, focuses on a system optimization theory and methodology for wireless multimedia communication based on joint source-channel coding technology. Through a comprehensive study in source coding, channel coding, and error-concealing reception techniques, effective algorithms and system design methods are developed. Out of that, 20 papers are published in international journals, domestic journals and international conferences (2 indexed by SCI, 16 by EI, all acknowledged the support from NSFC), receiving a good academic impacts.

无线多媒体通信是国际上新兴的研究课题。由于无线通信在信道资源及信道质量保证方面的严重限制，使得高性能多媒体通信的实现面临很大的技术挑战。传统的算法和系统设计方法往往在实时性、资源利用率及实现复杂度等方面很难取得折衷。本课题将以全局优化为目标，重点研究以联合信源信道编码技术为核心的无线多媒体通信系统优化设计理论与方法，通过对无线多媒体所涉及的信源压缩算法、信道编码技术、及容错接收技术等方面的综合研究