Spectral Efficiency of Distributed Antenna Network Using MIMO Spatial Multiplexing

Multiple-Input Multiple-Output (MIMO) spatial multiplexing is known to increase the transmission rate without bandwidth expansion. However, in Cellular Networks (CNs), the transmission rate of a user close to the cell edge significantly degrades because the received Signal-to-Interference plus Noise power Ratio (SINR) degrades due to the presence of strong Co-Channel Interference (CCI) from neighboring cells. Distributed Antenna Network (DAN), in which many antennas are spatially distributed over the cell, is suitable for MIMO spatial multiplexing because the received SINR improves over the entire cell.