Multiuser Detection
Space-time wireless channels
Introduction to Space-Time Wireless Communications
Introduction to Space-Time Wireless Communications
Optimization of nonlinear signal constellations for real-world MIMO channels
IEEE Transactions on Signal Processing
Efficient detection algorithms for MIMO channels: a geometrical approach to approximate ML detection
IEEE Transactions on Signal Processing
Robust linear MIMO receivers: a minimum error-rate approach
IEEE Transactions on Signal Processing
A simple transmit diversity technique for wireless communications
IEEE Journal on Selected Areas in Communications
Hi-index | 0.01 |
In this paper, an asynchronous layered space-time architecture is proposed to realize the spatial multiplexing over the Ricean multiple-input multiple-output (MIMO) channels. Based on reducing the correlation of spatial shaping pulses between the multiplexed streams, this approach can be used to solve the problem of detection in the ill-conditioned channel matrix. It is shown that at the receiver, the reduction of the correlation enables the requirement on the number of the receive antennas to be removed by the zero forcing (ZF) detector compared with the conventional synchronous layered space-time architecture. First, this paper presents how to exploit the correlation of spatial shaping pulses between the multiplexed streams. Then deriving the exact closed-form expression of error rate for the proposed scheme, this paper finds that the maximum possible diversity gain can be achieved based on the independent layered architecture by the ZF detector at the cost of limited multiplexing gain.