Turbo Equalization for Evolved GSM / EDGE Radio Access Network using Higher Order Modulation

Conference: European Wireless 2008 - 14th European Wireless Conference
06/22/2008 - 06/25/2008 at Prague, Czech Republic

Proceedings: European Wireless 2008

Pages: 5Language: englishTyp: PDF

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Nickel, Patrick; Gerstacker, Wolfgang; Reck, Christoph; Koch, Wolfgang (Institute for Mobile Communications, University of Erlangen–Nuremberg, Cauerstr. 7, 91058 Erlangen, Germany)

For evolution of the GSM/EDGE radio access network (RAN), the use of higher order modulation like 16– and 32–ary quadrature amplitude modulation (QAM) is considered in standardization for increased peak data rates and reduced transmission delays. In this paper, an optimized receiver design for different packet data transmission schemes is proposed. Turbo coding and turbo equalization is discussed for improved power efficiency and interference robustness. An efficient complexity reduction of the equalizer enables the usage of turbo equalization at a complexity comparable to that of separate equalization and decoding for turbo–coded transmission.