Title :
Channel Delay Management with Statistical Pre-Filtering for Single Carrier Cyclic Prefix Transmissions
Author :
Leon, Wing Seng ; Liang, Ying-Chang ; Zeng, Yonghong ; Xu, Changlong
Author_Institution :
Inst. for Infocomm Res.
Abstract :
We present a downlink single carrier cyclic prefix transmission method which employs directional beamforming and artificial delay for channels with dominant cluster paths. The proposed technology robustly manages the overall delay of the transmission channel for performance gain. For channels with delays larger than the cyclic prefix, the proposed method shortens the delay for IBI-free transmission. When the cyclic prefix duration exceeds that of the channel duration, the proposed technique can lengthen the effective channel delay to possibly improve the system´s performance. Computer simulations are presented to verify the efficacy of the proposed transmission technology.
Keywords :
filtering theory; statistical analysis; wireless channels; IBI-free transmission; channel delay; channel delay management; directional beamforming; single carrier cyclic prefix transmissions; statistical pre-filtering; transmission channel; Array signal processing; Computer simulation; Delay effects; Downlink; OFDM; Receiving antennas; Robustness; Throughput; Transmitters; 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.2007.367