Order-recursive precoding for cooperative multi-point transmission

Experimental spatial correlation characteristics of propagation channels in indoor environments

“…For example, in Fig. 2, the channels observed when the Tx moves in the range [1,3] meters are correlated with the channels observed when the Tx moves in [10,12] meters. From the map, we see that for these two periods, the locations of the Tx were at symmetrical corners of the office, close to the image positions with respect to the door of the office.…”

“…assumption and the Rayleigh/Rician fading settings when generating the transfer matrix are inappropriate for the channels with distributed topologies. These over-simplified assumptions lead to unrealistic estimates of the metrics, such as the signalto-interference and noise ratio (SINR) and the eigenmode representation of the channel used for designing and optimizing algorithms for the CoMP transmission [12]. It is important to conduct channel measurements to construct statistical models for the fading of the multi-links and their correlations in e.g.…”