Abstract
In this paper, we propose a robust pilot-assisted equalisation strategy for the partially loaded time-division duplex (TDD) component of the universal mobile telecommunications system (UMTS). In addition to training-based equalisation performed using the midamble of a data packet, some of the unused preading codes are exploited to upload pilots in order to perform an additional semi-blind adaptation over the payload of a packet. The latter ensures continuous
adaptation and better tracking performance. The affine projection concept along with the concurrent constant modulus algorithm (CMA) and decision-directed (DD) mode are implemented to update the equaliser weights. Computer simulations are used to assess the performance of the proposed adaptation strategy over various UMTS TDD time bursts
adaptation and better tracking performance. The affine projection concept along with the concurrent constant modulus algorithm (CMA) and decision-directed (DD) mode are implemented to update the equaliser weights. Computer simulations are used to assess the performance of the proposed adaptation strategy over various UMTS TDD time bursts
Original language | English |
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Pages | 703-707 |
Number of pages | 5 |
Publication status | Published - 2007 |
Event | 15th European Signal Processing Conference - Poznan , Poland Duration: 3 Sep 2007 → 7 Sep 2007 |
Conference
Conference | 15th European Signal Processing Conference |
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Abbreviated title | EUSIPCO 2007 |
Country/Territory | Poland |
City | Poznan |
Period | 3/09/07 → 7/09/07 |
Keywords
- affine projection scheme
- concurrent adaptation
- downlink UMTS TDD
- constant modulus
- decision directed
- spectrum efficiency