Chip-Level Channel Equalization in WCDMA Downlink
| Autor: | Heikkilä Markku J, Komulainen Petri, Lilleberg Jorma, Hooli Kari, Juntti Markku, Latva-aho Matti |
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| Jazyk: | angličtina |
| Rok vydání: | 2002 |
| Předmět: | |
| Zdroj: | EURASIP Journal on Advances in Signal Processing, Vol 2002, Iss 8, p 180318 (2002) |
| Druh dokumentu: | article |
| ISSN: | 1687-6172 1687-6180 |
| DOI: | 10.1155/S1110865702000914 |
| Popis: | The most important third generation (3G) cellular communications standard is based on wideband CDMA (WCDMA). Receivers based on TDMA style channel equalization at the chip level have been proposed for a WCDMA downlink employing long spreading sequences to ensure adequate performance even with a high number of active users. These receivers equalize the channel prior to despreading, thus restoring the orthogonality of users and resulting in multiple-access interference (MAI) suppression. In this paper, an overview of chip-level channel equalizers is delivered with special attention to adaptation methods suitable for the WCDMA downlink. Numerical examples on the equalizers′ performance are given in Rayleigh fading frequency-selective channels. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
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