TAILIEUCHUNG - Báo cáo hóa học: "Editorial Advances in Propagation Modeling for Wireless Systems"

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 Advances in Propagation Modeling for Wireless Systems | Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2009 Article ID 415736 2 pages doi 2009 415736 Editorial Advances in Propagation Modeling for Wireless Systems Claude Oestges 1 Michael Jensen 2 Persefoni Kyritsi 3 Mansoor Shafi 4 and Jun-ichi Takada5 1 Microwave Laboratory Universite catholique de Louvain 1348 Louvain-la-Neuve Belgium 2 Department of Electrical and Computer Engineering Brigham Young University Provo UT 84602 USA 3 Antennas Propagation and Radio Networking Section Aalborg University 9100 Aalborg Denmark 4 Telecom New Zealand P. O. Box 293 Wellington New Zealand 5 Department of International Development Engineering Graduate School of Science and Engineering Tokyo Institute of Technology Meguro-ku Tokyo 152-8550 Japan Correspondence should be addressed to Claude Oestges Received 18 March 2009 Accepted 18 March 2009 Copyright 2009 Claude Oestges 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. Advanced wireless systems face an ever-increasing number of challenges such as the limited availability of the radio frequency spectrum and the demand for faster data transmissions better quality of service and higher network capacity. Yet the true challenge faced by new communication technologies is to achieve the expected performance in real-world wireless channels. System designers classically focus on the impact of the radio channel on the received signals and use propagation models for testing and evaluating receiver designs and transmission schemes. The needs for such models evolve as new applications emerge with different bandwidths terminal mobility higher carrier frequencies new antennas and so forth. Furthermore channel characterization also yields the fundamental ties to classical electromagnetics and .

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