User ordering and power allocation for optimal multiantenna precoding/decoding
- 1 January 2004
- proceedings article
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 174-181
- https://doi.org/10.1109/wsa.2004.1407665
Abstract
The performance of multiuser beamforming combined with 'Dirty Paper' precoding (downlink) or successive interference cancellation (uplink) depends on the precoding (resp. decoding) order. In this paper we propose an improved algorithm for jointly computing the power allocation and beamformers with minimal total power. Neither matrix inversion nor eigenvalue decomposition is required to compute the global optimum. Then, the optimal precoding order is studied. A fundamental understanding of joint precoding and power allocation will be an important prerequisite for the development of transmit scheduling algorithmsKeywords
This publication has 24 references indexed in Scilit:
- Sum capacity of the vector Gaussian broadcast channel and uplink–downlink dualityIEEE Transactions on Information Theory, 2003
- On the achievable throughput of a multiantenna Gaussian broadcast channelIEEE Transactions on Information Theory, 2003
- Vectored transmission for digital subscriber line systemsIEEE Journal on Selected Areas in Communications, 2002
- Linear multiuser receivers: effective interference, effective bandwidth and user capacityIEEE Transactions on Information Theory, 1999
- Optimal sequences, power control, and user capacity of synchronous CDMA systems with linear MMSE multiuser receiversIEEE Transactions on Information Theory, 1999
- Transmit beamforming and power control for cellular wireless systemsIEEE Journal on Selected Areas in Communications, 1998
- Performance of optimum transmitter power control in cellular radio systemsIEEE Transactions on Vehicular Technology, 1992
- Writing on dirty paper (Corresp.)IEEE Transactions on Information Theory, 1983
- Matched-Transmission Technique for Channels With Intersymbol InterferenceIEEE Transactions on Communications, 1972
- New automatic equaliser employing modulo arithmeticElectronics Letters, 1971