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 LTE Adaptation for Mobile Broadband Satellite Networks | Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2009 Article ID 989062 13 pages doi 2009 989062 Research Article LTE Adaptation for Mobile Broadband Satellite Networks Francesco Bastia Cecilia Bersani Enzo Alberto Candreva Stefano Cioni Giovanni Emanuele Corazza Massimo Neri Claudio Palestini Marco Papaleo Stefano Rosati and Alessandro Vanelli-Coralli ARCES University of Bologna Via V Toffano 2 2 40125 Bologna Italy Correspondence should be addressed to Stefano Cioni scioni@ Received 31 January 2009 Revised 29 May 2009 Accepted 30 July 2009 Recommended by Constantinos B. Papadias One of the key factors for the successful deployment of mobile satellite systems in 4G networks is the maximization of the technology commonalities with the terrestrial systems. An effective way of achieving this objective consists in considering the terrestrial radio interface as the baseline for the satellite radio interface. Since the 3GPP Long Term Evolution LTE standard will be one of the main players in the 4G scenario along with other emerging technologies such as mobile WiMAX this paper analyzes the possible applicability of the 3GPP LTE interface to satellite transmission presenting several enabling techniques for this adaptation. In particular we propose the introduction of an inter-TTI interleaving technique that exploits the existing H-ARQ facilities provided by the LTE physical layer the use of PAPR reduction techniques to increase the resilience of the OFDM waveform to non linear distortion and the design of the sequences for Random Access taking into account the requirements deriving from the large round trip times. The outcomes of this analysis show that with the required proposed enablers it is possible to reuse the existing terrestrial air interface to transmit over the satellite link. Copyright 2009 Francesco Bastia et al. This is an open access article distributed under the Creative Commons .
