Authors:
Anders Furuskär, Tomas Jönsson, and Magnus Lundevall

PIMRC 2008

Download document:
The LTE Radio Interface - Key Characteristics and Performance (pdf)

Abstract:
Mobile broadband usage is taking off, demanding improved services and increased capacity of mobile networks. To meet tbese requirements, 3GPP bas defined LTE (tbe 3GPP Long Term Evolution). Tbis paper presents some key cbaracteristics of tbe LTE radio interface, including pbysical layer and radio resource management functions, and evaluates tbeir impact on system performance. As compared to a reference system witb more basic cbaracteristics, 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 botb downlink and uplink. A closer analysis of tbe individual system cbaracteristics indicates tbat tbese performance differences are due to ratber uniform contributions from a set of distinctive features.

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