Abstract
To overcome the disadvantage of joint space time coding (STC) and beamforming (BF) schemes based on eigenvalue decomposing (EVD) in multi-users interference system, this paper proposes a convolutional composite weighting (CCW) structure, which makes equivalent of transmitting beam into multiplication of two sub-beams with different functions. As an optimized combination between technical superiority of space-time coding and beamforming performance, the structure can achieve the full diversity order of STC, beamforming gain of BF. It can restrain the interference signals by nulling. The simulation results indicate that the proposed CCW structure can significantly enhance the reliability performance and the system capacity.
| Original language | English |
|---|---|
| Pages (from-to) | 603-607 |
| Number of pages | 5 |
| Journal | Nanjing Li Gong Daxue Xuebao/Journal of Nanjing University of Science and Technology |
| Volume | 30 |
| Issue number | 5 |
| State | Published - Oct 2006 |
Keywords
- Beamforming
- Composite weighting
- Multi-users interference
- Space time coding
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