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Downlink channel estimation and power control in CDMA systems

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4 Author(s)
Hoon Kim ; Sch. of Eng., ICU, South Korea ; Jayong Koo ; Keunyoung Kim ; Youngnam Han

In wireless communication systems, channel estimation is required not only for the coherent demodulation but also for the higher layer resource utilization. In WCDMA/FDD (wideband code division multiple access frequency division duplexing), downlink channel estimation can be performed in both CPICH (common pilot channel) and DPCCH (dedicated physical control channel). In this paper, considering the different link quality between CPICH and DPCCH according to the location of a mobile station (MS), estimation schemes that use both channels are suggested and their performances are compared in terms of mean square error (MSE). Power control effect on DPCCH channel estimation is also investigated in the performance evaluation.

Published in:

Vehicular Technology Conference, 2003. VTC 2003-Spring. The 57th IEEE Semiannual  (Volume:4 )

Date of Conference:

22-25 April 2003