Multiple-input multiple-output (MIMO) wireless systems employ spatial multiplexing to
increase data rate. The performance of spatial multiplexing is highly dependent on channel …

We consider spatial multiplexing systems in correlated multiple-input multiple-output (MIMO)
fading channels with equal power allocated to each transmit antenna. Under this constraint …

This letter investigates the structure of the optimal spatial multiplex scheme in a multiuser
multiantenna wireless fading environment. Based on a sum-capacity criterion, this letter …

This paper deals with the capacity behavior of wireless orthogonal frequency-division
multiplexing (OFDM)-based spatial multiplexing systems in broad-band fading environments …

Multiuser spatial multiplexing is a downlink transmission technique that uses linear transmit
precoding to multiplex multiple users and precancel interuser interference. In such a system …

Improved space-time coding for multiple-input multiple-output orthogonal frequency division
multiplexing is studied for wireless systems using QPSK modulation for four transmit and …

Generalized spatial modulation (GSM) uses nt transmit antenna elements but fewer transmit
radio frequency (RF) chains, n rf. Spatial modulation (SM) and spatial multiplexing are …

Spatial modulation (SM) is a recently developed transmission technique that uses multiple
antennas. The basic idea is to map a block of information bits to two information carrying …

The use of multiple antennas for wireless communication systems has gained overwhelming
interest during the last decade-both in academia and industry. Multiple antennas can be …

Multi-carrier modulations (MCM) and especially orthogonal schemes such as orthogonal
frequency division multiplexing (OFDM) are currently used in many radio transmission …