Carrier Frequency Offset Estimation Methods Based on Eigenvalues in the CI-OFDM System
碩士 === 國立臺北科技大學 === 電機工程研究所 === 105 === The technique of carrier-interferometry orthogonal frequency division multiplexing (CI-OFDM) inherits many advantages of OFDM technique. It can reduce peak to average power ratio (PAPR) significantly in the OFDM system with the same bit error rate. However, CI...
| Main Authors: | , |
|---|---|
| Other Authors: | |
| Format: | Others |
| Language: | zh-TW |
| Published: |
2017
|
| Online Access: | http://ndltd.ncl.edu.tw/handle/vm936z |
| Summary: | 碩士 === 國立臺北科技大學 === 電機工程研究所 === 105 === The technique of carrier-interferometry orthogonal frequency division multiplexing (CI-OFDM) inherits many advantages of OFDM technique. It can reduce peak to average power ratio (PAPR) significantly in the OFDM system with the same bit error rate. However, CI-OFDM systems are also sensitive to frequency synchronization error. A slight carrier frequency offset (CFO) can result in inter-carrier interference (ICI) which dramatically increases bits error rate of the system. Therefore, this thesis proposes and derivates eigenvalue-based carrier frequency offset estimation method for CI-OFDM systems. Using computer simulations, we analyze the performance of this method in CI-OFDM systems over various channels by the form of both training sequences and pilot symbols. Finally, we compare the performance of our method in CI-OFDM systems with the performance of the eigenvalue-based CFO estimation method in OFDM systems.
|
|---|