On Performance of Clustering-Based Limited Feedback Beamforming in Multiple-Antenna OFDM Systems
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
On performance optimization for multi-carrier MIMO ad hoc networks
Proceedings of the tenth ACM international symposium on Mobile ad hoc networking and computing
User resource structure design with enhanced diversity for OFDMA in time-varying channels
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Time-domain transmit beamforming for MIMO-OFDM systems with finite rate feedback
IEEE Transactions on Communications
feedback reduction based on clustering in MIMO-OFDM beamforming systems
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
A new beamforming for 60GHz wireless system with reduced feedback overhead
ISCIT'09 Proceedings of the 9th international conference on Communications and information technologies
Simplified maximum-likelihood precoder selection for limited feedback spatial multiplexing systems
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Link adaptation in linearly precoded closed-loop MIMO-OFDM systems with linear receivers
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Weighted sum-rate maximization scheduling for MIMO ad hoc networks
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Reduced feedback designs for SDMA-OFDMA systems
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Using limited feedback in power allocation design for a two-hop relay OFDM system
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Space Diversity Knotted with WiMAX- A Way for Undistorted and Anti-Corruptive Channel
Wireless Personal Communications: An International Journal
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Transmitter precoding for multiple-input-multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) is an effective way of leveraging the diversity gains afforded by a multiple-transmit multiple-receive antenna system in a frequency selective environment. In the limited feedback scenario, optimal precoder representation for narrowband MIMO systems using moderately sized codebooks designed on the Grassmann manifold has been shown to perform remarkably well. In MIMO-OFDM systems, precoder matrices have to be designed for all subcarriers and the amount of feedback can get prohibitively large. This is especially true for next generation wireless local area networks and wireless metropolitan area networks which have a large number of subcarriers. In this paper, we present techniques to reduce this feedback requirement and the performance of these algorithms is numerically shown to provide improvement over existing schemes