TAILIEUCHUNG - Báo cáo hóa học: " Editorial OFDMA Architectures, Protocols, and Applications"

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 OFDMA Architectures, Protocols, and Applications | Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2009 Article ID 703083 4 pages doi 2009 703083 Editorial OFDMA Architectures Protocols and Applications Victor C. M. Leung 1 Alister G. Burr 2 Lingyang Song 3 Yan Zhang 4 and Thomas Michael Bohnert5 department of Electrical and Computer Engineering The University of British Columbia 2332 Main Mall Vancouver BC Canada V6T1Z4 department of Electronics University of York York YO10-5DD UK 3Peking University China 4 Simula Research Laboratory 1325 Lysaker Norway 5SAP Research CEC Zurich Switzerland Correspondence should be addressed to Yan Zhang yanzhang@ Received 31 March 2009 Accepted 31 March 2009 Copyright 2009 Victor C. M. Leung 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. Welcome to this special issue of the EURASIP Journal on Wireless Communications and Networking JWCN . This special issue is devoted to the topic of the latest research and development on Orthogonal Frequency-Division Multiple Access OFDMA from physical and network layers to practical applications. OFDMA technologies are currently attracting intensive attention in wireless communications to meet the ever-increasing demands arising from the explosive growth of Internet multimedia and broadband services. OFDMA-based systems are able to deliver high data rate operate in the hostile multipath radio environment and allow efficient sharing of limited resources such as spectrum and transmit power between multiple users. OFDMA has been used in the mobility mode of IEEE WiMAX is currently a working specification in 3GPP Long Term Evolution downlink and is the candidate access method for the IEEE Wireless Regional Area Networks. Clearly recent advances in wireless communication technology have led to significant .

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