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 |
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All Science Journal Classification (ASJC) codes
- Computer Science Applications
- Electrical and Electronic Engineering
- Applied Mathematics
Cite this
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A reverselink beamforming based on simplex downhill algorithm for time-varying channel environments. / Lee, Joonsung; Oh, Changheon; Lee, Chungyong.
In: IEEE Vehicular Technology Conference, Vol. 58, No. 1, 01.12.2003, p. 232-235.Research output: Contribution to journal › Conference article
TY - JOUR
T1 - A reverselink beamforming based on simplex downhill algorithm for time-varying channel environments
AU - Lee, Joonsung
AU - Oh, Changheon
AU - Lee, Chungyong
PY - 2003/12/1
Y1 - 2003/12/1
N2 - 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.
AB - 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.
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M3 - Conference article
AN - SCOPUS:4143077028
VL - 58
SP - 232
EP - 235
JO - IEEE Vehicular Technology Conference
JF - IEEE Vehicular Technology Conference
SN - 0740-0551
IS - 1
ER -