Abstract
New beamforming method based on simplex downhill optimaization process has been presented for the reverse link CDMA systems. The proposed system performs code-filtering at each antenna for each user. It is shown that for fast fading channels, conventional sqare error based cost functions can yield poor results. A new method is proposed based on a variation of the SINK cost function coupled with optimal time variying channel estimation to improve signal tracking. The new beamforming method gives lower computations and faster convergence properties than existing algorithms in fast filing enviromnment. The simulation results show that the proposed algorithm has a better BER performance in the case of the time-varing channel.
| Original language | English |
|---|---|
| Pages (from-to) | 232-235 |
| Number of pages | 4 |
| Journal | IEEE Vehicular Technology Conference |
| Volume | 58 |
| Issue number | 1 |
| Publication status | Published - 2003 Dec 1 |
| Event | 2003 IEEE 58th Vehicular Technology Conference, VTC2003-Fall - Orlando, FL, United States Duration: 2003 Oct 6 → 2003 Oct 9 |
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All Science Journal Classification (ASJC) codes
- Computer Science Applications
- Electrical and Electronic Engineering
- Applied Mathematics
Cite this
Lee, J., Oh, C., & Lee, C. (2003). A reverselink beamforming based on simplex downhill algorithm for time-varying channel environments. IEEE Vehicular Technology Conference, 58(1), 232-235.