Analysis of MIMO Transmission for GSM/EDGE
نویسندگان
چکیده
Inspired by recent TSG GERAN (Technical Specification Group GSM EDGE Radio Access Network) contributions, we propose a multiple–input multiple–output (MIMO) transmission scheme for GSM/EDGE (Enhanced Data Rates for GSM Evolution) with two antennas on each side. Performance is compared to that of single–antenna transmission with one and two receive antennas, respectively. Also, an approximation for the bit error rate (BER) of maximum–likelihood (ML) detection is determined for MIMO transmission over frequency–selective channels. Joint channel estimation is included in our considerations and the influence of different training sequences on the detection performance is shown. One crucial point is the selection of suitable training sequence pairs. Here, optimum training sequences are compared to different sets of training sequences included in the current GSM/EDGE standard. Simulation results are given taking into account spacial correlation of the 2× 2 MIMO channel and good performance is obtained even for high subchannel correlations.
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