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Báo cáo hóa học: " Editorial Wireless Access in Vehicular Environmen"

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: Research Editorial Wireless Access in Vehicular Environmen | Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2009 Article ID 576217 2 pages doi 10.1155 2009 576217 Editorial Wireless Access in Vehicular Environments Weidong Xiang 1 Javier Gozalvez 2 Zhisheng Niu 3 Onur Altintas 4 and Eylem Ekici5 1 University of Michigan Dearborn USA 2 University Miguel Hernandez Spain 3Tsinghua University China 4 Toyota InfoTechnology Center Co. Ltd Tokyo 107-0052 Japan 5 Ohio State University 205 Dreese Lab. 2015 Neil Ave. Columbus OH 43210 USA Correspondence should be addressed to Weidong Xiang xwd@umich.edu Received 31 December 2008 Accepted 31 December 2008 Copyright 2009 Weidong Xiang 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. Vehicular communications and networks based on the recent wireless access in vehicular environments WAVE technology comes into sight as a state-of-the-art solution to Intelligent Transportation Systems ITS which is anticipated to be widely applied in the near future to radically improve the transportation environment in the aspects of safety intelligent management and data exchange services. WAVE systems will build upon the IEEE 802.11p standard which is still active and expected to be ratified in 2009. WAVE technology is the next generation dedicated shortrange communications DSRC technology which provides high-speed V2V and V2I data transmission and has major applications in ITS vehicle safety services and Internet access. Operating at 5.850-5.925 GHz WAVE systems adopt orthogonal frequency-division multiplexing OFDM and achieve data rates of 6-27 Mbs s. In WAVE systems an RSU can cover a range of up to 1000 feet. The fast time-varying and harsh vehicular environment doubly selective channel bring about several fresh research topics on the study of WAVE systems which include mobile channel .