Analysis of Uplink and Downlink Spatial Channel Reciprocity When Using Asymmetric Transceiver
Peize Zhang,
Pekka Kyösti,
Mar Francis De Guzman
et al.
Abstract:A novel millimeter-wave massive MIMO system using asymmetric transceiver, i.e., unequal number of transmitting (Tx) and receiving (Rx) radio frequency chains, is expected to maintain the advantages of conventional fully digital beamforming architectures, but partly reduce the implementation cost and power consumption. However, uplink and downlink radio channels may become non-reciprocal due to the different dimensions of Tx-Rx antenna arrays. In this paper, we analyze the reciprocity of radio channels observed… Show more
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