Title :
The LTE radio interface - key characteristics and performance
Author :
Furuskär, Anders ; Jönsson, Tomas ; Lundevall, Magnus
Author_Institution :
Ericsson Res.
Abstract :
Mobile broadband usage is taking off, demanding improved services and increased capacity of mobile networks. To meet these requirements, 3GPP has defined LTE (the 3GPP Long Term Evolution). This paper presents some key characteristics of the LTE radio interface, including physical layer and radio resource management functions, and evaluates their impact on system performance. As compared to a reference system with more basic characteristics, represented by mobile WiMax, results point to a combined gain in spectrum efficiency of 60% in downlink and 100% in uplink. Cell-edge bitrate gains are about 100% in both downlink and uplink. A closer analysis of the individual system characteristics indicates that these performance differences are due to rather uniform contributions from a set of distinctive features.
Keywords :
3G mobile communication; WiMax; broadband networks; mobility management (mobile radio); 3GPP Long Term Evolution; LTE radio interface; cell-edge bitrate gains; mobile WiMax; mobile broadband usage; mobile networks; physical layer; radio resource management functions; Bit rate; Delay; Downlink; Long Term Evolution; Modulation coding; OFDM modulation; Resource management; Robust control; System performance; WiMAX; LTE; Performance; WiMAX;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2008. PIMRC 2008. IEEE 19th International Symposium on
Conference_Location :
Cannes
Print_ISBN :
978-1-4244-2643-0
Electronic_ISBN :
978-1-4244-2644-7
DOI :
10.1109/PIMRC.2008.4699492
