FPGA Realization of a Unique Word Based Single Carrier System with Frequency Domain Equalization
| Autor: | HSIN YAO CHEN, 陳欣瑤 |
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| Rok vydání: | 2007 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 95 In recent years, Single Carrier System with Frequency Domain Equalization (SC-FDE) becomes a key technology in the development of new wireless communication systems. It has similar performance, efficiency as well as low signal processing complexity advantages as orthogonal frequency division multiplexing (OFDM), but does not suffer from the high peak to average power ratio (PAPR) problem as in OFDM system. Therefore, SC-FDE has been adopted by IEEE 802.16 standard as an alternative technique to OFDM in the physical layer. In this thesis, we propose a solution for building up a Unique-Word (UW) based SC-FDE system on a self-designed platform with Xilinx Virtex-II FPGA module mounted. In addition to channel estimator, frequency offset compensator and convolutional encoder, a UW-based phase offset tracker is realized to make the functionalities of the system more complete. Moreover, other applications of UW structure are presented, including FFT window synchronization and update of channel estimation in mobile environment, etc. Finally, we will show that the UW structure is not only theoretically simple, but also practically suitable for hardware implementation. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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