Elements of information theory
Elements of information theory
Fundamentals of wireless communication
Fundamentals of wireless communication
LTE, The UMTS Long Term Evolution: From Theory to Practice
LTE, The UMTS Long Term Evolution: From Theory to Practice
Limited feedback unitary precoding for orthogonal space-time block codes
IEEE Transactions on Signal Processing
Space-time-frequency coded OFDM over frequency-selective fading channels
IEEE Transactions on Signal Processing
IEEE Transactions on Signal Processing - Part I
Capacity analysis in CDMA distributed antenna systems
IEEE Transactions on Wireless Communications
Precoding of space-time block coded signals for joint transmit-receive correlated MIMO channels
IEEE Transactions on Wireless Communications
Asynchronous Interference Mitigation in Cooperative Base Station Systems
IEEE Transactions on Wireless Communications
IEEE Transactions on Wireless Communications
Distributed Antenna Systems with Randomness
IEEE Transactions on Wireless Communications
Combining beamforming and orthogonal space-time block coding
IEEE Transactions on Information Theory
Optimal transmitter eigen-beamforming and space-time block coding based on channel correlations
IEEE Transactions on Information Theory
Grassmannian beamforming for multiple-input multiple-output wireless systems
IEEE Transactions on Information Theory
On space-time coding in the presence of spatio-temporal correlation
IEEE Transactions on Information Theory
Transmit beamforming in multiple-antenna systems with finite rate feedback: a VQ-based approach
IEEE Transactions on Information Theory
Capacity and power allocation for fading MIMO channels with channel estimation error
IEEE Transactions on Information Theory
Distributed wireless communication system: a new architecture for future public wireless access
IEEE Communications Magazine
Modeling the statistical time and angle of arrival characteristics of an indoor multipath channel
IEEE Journal on Selected Areas in Communications
Impact of the propagation environment on the performance of space-frequency coded MIMO-OFDM
IEEE Journal on Selected Areas in Communications
Improved transmit steering for MIMO-OFDM downlinks with distributed base station antenna arrays
IEEE Journal on Selected Areas in Communications
An overview of limited feedback in wireless communication systems
IEEE Journal on Selected Areas in Communications
Hi-index | 35.68 |
In this paper, the benefit of linear precoding along with distributed orthogonal space time block codes (OSTBCs) is exploited to improve the performance of distributed antenna system (DAS). In particular, we propose a novel precoder design method based on channel angular domain parameters, i.e., average angle of arrival (AOA), angular spread (AS), normalized antenna spacing (NAS) and Ricean K-factor, instead of the conventional channel correlation matrix which has been widely used to characterize MIMO channel. Built on the distributed characteristics of DAS, a more realistic non-Kronecker channel model is established, and then the optimal precoder is designed as a function of the above angular domain parameters. Asymptotic analysis reveals that, the optimal precoder acts as a combination of channel precoder and power allocator. Furthermore, the impact of the above angular domain parameters on system performance, including diversity order and coding advantage, is investigated in detail. Specifically, we find that better gain can be achieved with larger K-factor. Finally, our theoretical claims are confirmed by the numerical results.