1. Wideband-CDMA channel estimation: a data-aided multi-slot averaging method
- Author
-
Xi-Bin Han and Wei-Ping Zhu
- Subjects
Time-division multiplexing ,Computer science ,Code division multiple access ,Telecommunications link ,Electronic engineering ,Fading ,Data_CODINGANDINFORMATIONTHEORY ,Wideband ,Multiplexing ,Computer Science::Information Theory ,Communication channel - Abstract
In this paper, a two-step channel estimation scheme is presented for downlink wideband code division multiple access (W-CDMA) communication systems. The proposed method employs the time multiplexed pilot symbols for an initial coarse estimation followed by a data-aided fine estimation in order to achieve a fast and accurate estimation of the complex channel gain. Our simulation shows that the proposed method works very well for both slow and fast fading channels. The computational complexity required by the proposed estimation is significantly reduced compared to some of the existing estimation techniques.
- Published
- 2004
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