SAT‐OFDM: a satellite radio interface for the IMT‐advanced system. (21st April 2015) - Kim, Hee Wook
Summary This paper presents the satellite orthogonal frequency division multiplexing (SAT‐OFDM) technology as a satellite radio interface for international mobile telecommunications (IMT)‐Advanced. The SAT‐OFDM radio interface is designed to provide various advanced IMT services in satellite environments. For cost‐effective deployment of a satellite IMT‐Advanced system, the radio interface must have a high degree of commonality with third‐generation partnership project long‐term evolution (3GPP LTE) technology for IMT‐Advanced, but it also has a number of different features. Those features are needed to adapt the 3GPP LTE technology for satellite‐specific environments such as long round‐trip delay, large cell size, and slow‐fading satellite channel. In this paper, we summarize the key features of the SAT‐OFDM technology and propose satellite specific features included in the SAT‐OFDM technology as an adaption way of LTE over satellite. Then we show the performance evaluation results of the SAT‐OFDM technology to see the feasibility of LTE over satellite. Copyright © 2015 John Wiley & Sons, Ltd.