Correction and compensation of I/Q imbalance and multipath channel for OFDM receivers
This paper presents an adaptive scheme in overcoming signal distortion, caused by I/Q imbalance and multipath propagation, in an OFDM receiver. Estimation of I/Q imbalance and channel parameters is performed in the frequency domain with the aid of pilot tones. These estimated values are then used to...
| Main Authors: | , |
|---|---|
| Format: | Conference Paper |
| Published: |
Institute of Electrical and Electronics Engineers Inc.
2014
|
| Online Access: | 421 http://hdl.handle.net/20.500.11937/3609 |
| _version_ | 1848744278100017152 |
|---|---|
| author | Haq, K. Chung, Kah-Seng |
| author_facet | Haq, K. Chung, Kah-Seng |
| author_sort | Haq, K. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This paper presents an adaptive scheme in overcoming signal distortion, caused by I/Q imbalance and multipath propagation, in an OFDM receiver. Estimation of I/Q imbalance and channel parameters is performed in the frequency domain with the aid of pilot tones. These estimated values are then used to adjust the gain and phase to reduce the distortion caused by I/Q imbalance. The resulting less distorted signal is then subjected to a simpler post compensation process to remove the effects of the multipath channel and any residue frequency-dependent I/Q imbalance. MATLAB simulations have demonstrated that the proposed approach provides substantial improvements to the system performance. |
| first_indexed | 2025-11-14T05:58:55Z |
| format | Conference Paper |
| id | curtin-20.500.11937-3609 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T05:58:55Z |
| publishDate | 2014 |
| publisher | Institute of Electrical and Electronics Engineers Inc. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-36092018-04-13T06:32:05Z Correction and compensation of I/Q imbalance and multipath channel for OFDM receivers Haq, K. Chung, Kah-Seng This paper presents an adaptive scheme in overcoming signal distortion, caused by I/Q imbalance and multipath propagation, in an OFDM receiver. Estimation of I/Q imbalance and channel parameters is performed in the frequency domain with the aid of pilot tones. These estimated values are then used to adjust the gain and phase to reduce the distortion caused by I/Q imbalance. The resulting less distorted signal is then subjected to a simpler post compensation process to remove the effects of the multipath channel and any residue frequency-dependent I/Q imbalance. MATLAB simulations have demonstrated that the proposed approach provides substantial improvements to the system performance. 2014 Conference Paper http://hdl.handle.net/20.500.11937/3609 10.1109/CSNDSP.2014.6923969 421 Institute of Electrical and Electronics Engineers Inc. restricted |
| spellingShingle | Haq, K. Chung, Kah-Seng Correction and compensation of I/Q imbalance and multipath channel for OFDM receivers |
| title | Correction and compensation of I/Q imbalance and multipath channel for OFDM receivers |
| title_full | Correction and compensation of I/Q imbalance and multipath channel for OFDM receivers |
| title_fullStr | Correction and compensation of I/Q imbalance and multipath channel for OFDM receivers |
| title_full_unstemmed | Correction and compensation of I/Q imbalance and multipath channel for OFDM receivers |
| title_short | Correction and compensation of I/Q imbalance and multipath channel for OFDM receivers |
| title_sort | correction and compensation of i/q imbalance and multipath channel for ofdm receivers |
| url | 421 http://hdl.handle.net/20.500.11937/3609 |