Abstract
This paper presents radio frequency (RF)-receiver investigations related to UMTS-HSDPA throughput performance (TP). The investigated concept is based on a direct conversion receiver (DCR) architecture enhanced with a digital-front-end (DFE). Due to the use of a DFE some analog requirements decrease on the expense of a tightened ADC specification and a more complex digital signal processing chain. To efficiently use the whole dynamic range of the ADC under all operating conditions requires a smart automatic gain control (AGC) strategy for the analog gain stages. The effects of different ADC levels on the TP performance are investigated in detail. Based on these results a smart leveling strategy is developed. TP results including the proposed AGC-method are presented for the ITU-channel models PA3, PB3, and VA120.
Original language | English |
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Title of host publication | IEEE Vehicular Technology Conference |
Publisher | IEEE Computer Society |
Pages | 1-5 |
Number of pages | 5 |
ISBN (Print) | 1-4244-0063-5 |
DOIs | |
Publication status | Published - 28 Sept 2006 |
Event | IEEE Vehicular Technology Conference - Montreal, QC, Canada Duration: 25 Sept 2006 → 28 Sept 2006 |
Conference
Conference | IEEE Vehicular Technology Conference |
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Period | 25/09/06 → 28/09/06 |
Keywords
- Gain control
- Multiaccess communication
- 3G mobile communication
- Automatic control
- Throughput
- Downlink
- Radiofrequency integrated circuits
- Radio frequency
- Receivers
- Digital signal processing