Title :
Initial Performance Evaluation of DFT-Spread OFDM Based SC-FDMA for UTRA LTE Uplink
Author :
Priyanto, Basuki E. ; Codina, Humbert ; Rene, Sergi ; SØrensen, Troels B. ; Mogensen, Preben
Author_Institution :
Dept. of Electron. Syst., Aalborg Univ.
Abstract :
In this paper we present an initial performance evaluation of the 3GPP UTRA long term evolution (UTRA LTE) uplink with baseline settings. The performance results are obtained from a detailed UTRA LTE uplink link level simulator supporting OFDMA and SC-FDMA schemes. The basic transmission scheme for uplink direction is based on single-carrier transmission in the form of DFT spread OFDM with an MMSE receiver. Two antenna configurations, SISO and 1times2 SIMO are considered in the analysis of spectral efficiency in addition to adaptive modulation and coding (AMC) and L1-HARQ. For assessment purposes, the performance results of SC-FDMA are compared with OFDMA. It is shown that 1times2 SIMO greatly increases the spectral efficiency of SC-FDMA making it comparable to OFDMA, especially for high coding rate. Furthermore, SC-FDMA has a flexibility to increase BLER performance by exploiting frequency diversity.
Keywords :
3G mobile communication; OFDM modulation; adaptive codes; adaptive modulation; automatic repeat request; discrete Fourier transforms; frequency division multiple access; least mean squares methods; 3GPP UTRA long term evolution; DFT-spread OFDM; L1-HARQ; MMSE receiver; OFDMA; SC-FDMA; SIMO; SISO; UTRA LTE uplink; adaptive modulation and coding; single-carrier transmission; uplink link level simulator; Base stations; Diversity reception; Downlink; Frequency conversion; Interference; Long Term Evolution; OFDM modulation; Peak to average power ratio; Receiving antennas; Transmitting antennas;
Conference_Titel :
Vehicular Technology Conference, 2007. VTC2007-Spring. IEEE 65th
Conference_Location :
Dublin
Print_ISBN :
1-4244-0266-2
DOI :
10.1109/VETECS.2007.650
