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: Editorial Cross-Layer Design for the Physical, MAC, and Link Layer in Wireless Systems | Hindawi Publishing Corporation EURASIP Journal on Advances in Signal Processing Volume 2009 Article ID 528675 3 pages doi 2009 528675 Editorial Cross-Layer Design for the Physical MAC and Link Layer in Wireless Systems Petar Popovski 1 2 Mary Ann Ingram 3 Christian B. Peel 4 Shinsuke Hara 5 and Stavros Toumpis6 1 Department of Electronic Systems Aalborg University Niels Jernes Vej 12 9220 Aalborg 0st Denmark 2 Oticon A S Kongebakken 9 2765 Sm0rum Denmark 3 School of Electrical and Computer Engineering Georgia Institute of Technology 777 Atlantic Drive NW Atlanta GA 30332-0250 USA 4 ArrayComm LLC San Jose CA 95131-1014 USA 5 Graduate School of Engineering Osaka City University Osaka-shi 558-8585 Japan 6 Department of Electrical and Computer Engineering University of Cyprus . Box 20537 1678 Nicosia Cyprus Correspondence should be addressed to Petar Popovski petarp@ Received 14 August 2008 Accepted 14 August 2008 Copyright 2009 Petar Popovski 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. During the past decade the research community and wireless practitioners have provided overwhelming evidence that the strictly layered ISO OSI architecture can lead to largely suboptimal operation of wireless networks. The reasons for such operation are rooted in the defining features of wireless communication the variable link quality and the fact that the wireless medium should be shared by multiple users. In order to properly reflect these features in the protocol stack the methodology of cross-layer design has been adopted. In short the cross-layer methodology allows certain important information to influence decisions in a layer that is originally not defined to use that information . the SNR information at the link layer or the queue size at the baseband module . The motivation for this
