TAILIEUCHUNG - Báo cáo hóa học: " On Cross-Layer Design for Streaming Video Delivery in Multiuser Wireless Environments"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: On Cross-Layer Design for Streaming Video Delivery in Multiuser Wireless Environments | Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2006 Article ID 60349 Pages 1-10 DOI WCN 2006 60349 On Cross-Layer Design for Streaming Video Delivery in Multiuser Wireless Environments Lai-U Choi 1 Wolfgang Kellerer 2 and Eckehard Steinbach1 1 Media Technology Group Institute of Communication Networks Department of Electrical Engineering and Information Technology Munich University of Technology 80290 Munich Germany 2 Future Networking Lab DoCoMo Communications Laboratories Europe GmbH 80687 Munich Germany Received 1 October 2005 Revised 10 March 2006 Accepted 26 May 2006 We exploit the interlayer coupling of a cross-layer design concept for streaming video delivery in a multiuser wireless environment. We propose a cross-layer optimization between application layer data link layer and physical layer. Our aim is to optimize the end-to-end quality of the wireless streaming video application as well as efficiently utilizing the wireless resources. A possible architecture for achieving this goal is proposed and formulated. This architecture consists of the process of parameter abstraction a cross-layer optimizer and the process of decision distribution. In addition numerical results obtained with different operating modes are provided. The results demonstrate the potential of this proposed joint optimization. Copyright 2006 Lai-U Choi et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. 1. INTRODUCTION Since the introduction of digital personal wireless networks around 1990 wireless communication has evolved from an add-on into the key business of large telecommunication companies. At the beginning of the 21st century personal wireless communication has become part of the daily life of most people in developed areas. Together with the daily life usage

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