PERFORMANCE BOUND ANALYSIS ON TRANSMIT ANTENNAS SELECTION SYSTEMS CONSIDERING ERRONEOUS CHANNEL INFORMATION

Performance Bound Analysis on Transmit Antennas Selection Systems Considering Erroneous Channel Information

We consider multiple-inputs-single-output (MISO) systems equipped with N transmit and single receive antennas, and concentrate on transmit antenna selection (TAS) for flat Rayleigh fading channels. We assume perfect channel state information (CSI) at receiver and imperfect CSIs through an feedback link at transmitter. The metric of TAS are those with the largest instantaneous signal-tonoise rat...

MIMO Systems with Distributed Transmit Antennas Analysis

This paper analyzes a differential en/decoding scheme for multiple input multiple-output for usage in communication links with two distributed transmit antennas and one receive antenna, in which neither the transmitter nor the receiver know channel characteristics. Analyzed scheme is simulated and results are presents for the scenario of two transmit antennas one receive antenna. It will be sho...

Simplified channel estimation for OFDM systems with multiple transmit antennas

Multiple transmit-and-receive antennas can be used in orthogonal frequency division multiplexing (OFDM) systems to improve communication quality and capacity. In this paper, we present two techniques to improve the performance and reduce the complexity of channel parameter estimation: optimum training-sequence design and simplified channel estimation. The optimal training sequences not only sim...

Iterative Transmit/Receive Antenna Selection in MIMO Systems Based on Channel Capacity Analysis

Performance analysis of coded SFBC-OFDM systems with four transmit antennas

In this paper, we consider two coded SFBC-OFDM systems for four transmit and two receive antennas in broadband wireless channels. Using a linear simplified ZF receiver and a reduced complexity APP detector, we compare QO-SFBC and hybrid SM-SFBC in time varying multipath fading channels. We examine the results in terms of bit-error-rate and capacity for different channel characteristics. We show...