Wireless Personal Communications: An International Journal
DSMA: an access method for MIMO ad hoc networks based on distributed scheduling
Proceedings of the 2006 international conference on Wireless communications and mobile computing
Decision-directed recursive least squares MIMO channels tracking
EURASIP Journal on Wireless Communications and Networking
A Novel Adaptive Detection Scheme based on Parallel Interference Cancellation for V-BLAST System
Wireless Personal Communications: An International Journal
Improve efficiency of ad hoc networks with MIMO communication and cross layer MAC design
ICACT'09 Proceedings of the 11th international conference on Advanced Communication Technology - Volume 2
An Optimization Framework for Demand-based Fair Stream Allocation in MIMO Ad Hoc Networks
Mobile Networks and Applications
Cooperation techniques for wireless systems from a networking perspective
IEEE Wireless Communications
Spreading code assignment strategies for MIMO-CDMA systems operating in frequency-selective channels
EURASIP Journal on Wireless Communications and Networking
Wireless Personal Communications: An International Journal
Recursive QR packet combining for uplink single-carrier multi-user MIMO HARQ using near ML detection
Wireless Communications & Mobile Computing
Soft Decision Error Assisted Layered Multiuser Detectors for MIMO 2D Spread MC DS-CDMAs
Wireless Personal Communications: An International Journal
| Hi-index | 0.01 |
In this paper, we investigate the use of layered space-time (also known as the vertical Bell Laboratories layered space-time (V-BLAST) scheme) for multiuser detection in fading channels. The multiple transmit antennas in V-BLAST are treated as individual mobile station transmitters, while the base station consists of multiple receive antennas. In the proposed system, users are organized in groups and allocated a unique spreading code within the same group. Using these codes, we are able to separate the different groups, and layered space-time algorithm is then invoked to further remove the remaining interference between users. A decorrelator-type receiver-based layered space-time detection is proposed for both complex and real constellations. For the latter case, we derive our receiver after evaluating and comparing the performance of two decorrelators based on the V-BLAST scheme. It is demonstrated that a significant performance improvement and increase in system capacity is obtained with very low spreading factors. Further results are also introduced by considering reduced complexity receivers based on serial layered space-time group multiuser detection, and parallel layered space-time group multiuser detection.