3 citations · 3 across the 14 of their papers we have counts for
14 papers
A Continuous Vector-Perturbation for Multi-Antenna Multi-User Communication
Wee Seng Chua, Chau Yuen, Francois Chin
The sum-rate of the broadcast channel in a multi-antenna multi-user communication system can be achieved by using precoding and adding a regular perturbation to the data vector. Th…
Comparative Study of Open-loop Transmit Diversity Schemes for Four Transmit Antennas in Coded OFDM Systems
Chau Yuen, Yan Wu, Sumei Sun
We compare four open-loop transmit diversity schemes in a coded Orthogonal Frequency Division Multiplexing (OFDM) system with four transmit antennas, namely cyclic delay diversity…
Comparative Study of SVD and QRS in Closed-Loop Beamforming Systems
Chau Yuen, Sumei Sun, Jian-Kang Zhang
We compare two closed-loop beamforming algorithms, one based on singular value decomposition (SVD) and the other based on equal diagonal QR decomposition (QRS). SVD has the advanta…
Bi-Directional Multi-Antenna Relay Communications with Wireless Network Coding
Chau Yuen, Woon Hau Chin, Yong Liang Guan +2
In this paper, we consider a two-way or bidirectional communications system with a relay equipped with multiple antennas. We show that when the downlink channel state information i…
Four-node Relay Network with Bi-directional Traffic Employing Wireless Network Coding with Pre-cancellation
Su Kiang Kuek, Chau Yuen, Woon Hau Chin
Network coding has the potential to improve the overall throughput of a network by combining different streams of data and forwarding them. In wireless networks, the wireless chann…
Beamforming Matrix Quantization with Variable Feedback Rate
Chau Yuen, Sumei Sun, Mel Meau Shin Ho
We propose an improved beamforming matrix compression by Givens Rotation with the use of variable feedback rate. The variable feedback rate means that the number of bits used to re…