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Conference Paper
Design and Implementation of Robust Time/Frequency Offset Tracking Algorithm for MIMO-OFDM Receivers
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- Authors
- Il Gu Lee, Hee Jung Yu, Eun Young Choi, Jung Bo Son, Sok Kyu Lee
- Issue Date
- 2006-05
- Citation
- Vehicular Technology Conference (VTC) 2006 (Spring), pp.1191-1195
- Language
- English
- Type
- Conference Paper
- Project Code
- 05MM1100, Research on 4G Mobile Communications Technology, Hwang Seung Ku
- Abstract
- In this paper, the robust time and frequency offset tracking algorithms and architecture for high throughput wireless local area network (WLAN) systems are presented. The designed architecture has feedback and feed forward compensation loop with well defined loop filter coefficients obtained by various experiments for practical implementation. Considered functional blocks include residual CFO estimator, carrier phase estimator, and timing error estimator. In addition to the algorithm descriptions of these blocks, the implementation method is presented, as they are modeled in the floating/cycle and bit true fixed point C model. These C models have been used as a reference for RTL coding and its verification. The design has been implemented successfully on an FPGA device. The proposed tracking method produces results very close to that of the offset-free system. © 2006 IEEE.
- KSP Keywords
- Carrier phase, Designed architecture, Error estimator, FPGA device, Feedforward Compensation, Filter coefficients, Fixed-point, High Throughput Wireless, High throughput(HTP), Implementation method, Local Area Network(LAN)