tailieunhanh - Báo cáo hóa học: " Research Article New Method to Determine the Range of DVB-H Networks and the Influence of MPE-FEC Rate and Modulation Scheme"

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 Article New Method to Determine the Range of DVB-H Networks and the Influence of MPE-FEC Rate and Modulation Scheme | Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2009 Article ID 524163 10 pages doi 2009 524163 Research Article New Method to Determine the Range of DVB-H Networks and the Influence of MPE-FEC Rate and Modulation Scheme David Plets 1 Wout Joseph 1 Leen Verloock 1 Emmeric Tanghe 1 Luc Martens 1 Hugo Gauderis 2 and Etienne Deventer2 1IBBT Department of Information Technology Ghent University Gaston Crommenlaan 8 Box 201 9050 Ghent Belgium 2VRT-medialab Flemish Radio and Television Network VRT Auguste Reyerslaan 52 1043 Brussel Belgium Correspondence should be addressed to David Plets Received 30 September 2008 Revised 28 January 2009 Accepted 18 March 2009 Recommended by Alagan Anpalagan DVB-H networks allow high data rate broadcast access for hand-held terminals. A new method to determine the range of good reception quality of such a DVB-H network will be investigated in this paper. To this end a new subjective criterion is proposed based on the viewing experience of the users. This criterion is related to the percentage of valid reception. A comparison with existing criteria based on measured signal strengths is also made. The ranges are determined for mobile reception inside a car. The influence of the MPE-FEC rate and the modulation scheme on the range is also investigated enabling wireless telecom operators to select optimal settings for future networks. Copyright 2009 David Plets 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 The digital broadcasting standard Digital Video Broadcasting-Handheld DVB-H enables a high data rate broadcast access for hand-held terminals . portable pocket-size battery-operated phones . It is based on the specifications and guidelines of ETSI 1-4 . The broadband .

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