Abstract
Eigen-beamforming technique is introduced in two typical multi-antenna systems space-time block coding and vertical bell-labs layered space time. When the channel covariance information is known by the transmitter, optimal power allocation algorithm for eigen-beamforming is proposed based on minimizing the transmission errors. Also, it is indicated that the algorithm can be simplified when the channel is independent-identically distributed channel. By simulation and analysis, eigen-beamforming can greatly improve the performance of multi-antenna system when this power allocation algorithm is adopted and the performance improvement still exists when there is correlation between transmit antennas.
| Original language | English |
|---|---|
| Pages (from-to) | 1001-1004 |
| Number of pages | 4 |
| Journal | Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology |
| Volume | 27 |
| Issue number | 11 |
| Publication status | Published - Nov 2007 |
Keywords
- Eigen-beamforming
- Multi-antenna system
- Power allocation
- Wireless communication