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The Fourth generation (4G) wireless networks are expected to afford high data rate transmission of multimedia services such as wireless video, wireless Internet access and mobile computing. Orthogonal frequency division multiplexing (OFDM) is an effective technique for the future 4G communications because of its great immunity to impulse noise and intersymbol interference. Ultra wide band (UWB) wireless...
It has been reported that channel attenuation and Root-Mean-Square Delay Spread (RMS-DS) of in-home (IH) power line (PL) channels are (positively) correlated lognormal random variables. Exploiting this result, we here propose a simple statistical channel model where tap amplitudes and differential delay are correlated random variables. Although we focus here on the IH PL channel, we also report empirical...
For the shared frequency band between uplink and downlink, the channel reciprocity has been regarded as the most important advantage of a TDD system, in which the eNB can obtain the downlink channel state information (CSI) based on the uplink channel estimation, and thus perform advanced multi-antenna technologies to enhance the downlink transmission in TD-LTE/TD-LTE-Advanced systems. In this paper,...
Orthogonal Frequency Division Multiplexing (OFDM) is regarded as a feasible alternative for high data rate communication systems, mainly because of its inherent equalization simplicity. Based on the channel model described by generalized complex exponential basis expansion model (GCE-BEM) in OFDM systems, which is more accurate than the conventional complex exponential basis expansion model (CE-BEM),...
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