Title :
IEEE 802.11n: Effects of Feedback Non-Idealities on Performance of Transmit Beamforming Transceivers
Author :
Fabris Hoefel, Roger Pierre
Author_Institution :
Dept. of Electr. Eng., Fed. Univ. of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
Abstract :
Firstly, we define a set of transmit beamforming (TxBF) transceiver architectures in the framework of IEEE 802.11n systems. In the following, assuming frequency selective spatially correlated TGn D channels, we carry out a comparative performance analysis taking into accounting the effects of realistic time synchronization and channel estimation schemes and practical feedback issues (i.e., delay, quantization and subcarrier grouping) on the throughput gains of the TxBF schemes over the Vertical Bell lab Layered Space Time (V-BLAST) spatial division multiplexing (SDM) scheme.
Keywords :
channel estimation; radio transceivers; space division multiplexing; wireless LAN; IEEE 802.11 systems; SDM scheme; TxBF transceiver architectures; V-BLAST scheme; Vertical Bell lab Layered Space Time scheme; channel estimation schemes; comparative performance analysis; feedback non-idealities; frequency selective spatially correlated TGn D channels; realistic time synchronization; spatial division multiplexing scheme; subcarrier grouping; throughput gains; transmit beamforming transceivers; Delays; IEEE 802.11n Standard; MIMO; OFDM; Signal to noise ratio; Synchronization; Transceivers;
Conference_Titel :
Vehicular Technology Conference (VTC Spring), 2013 IEEE 77th
Conference_Location :
Dresden
DOI :
10.1109/VTCSpring.2013.6692584
