Name
Title | ||
|---|---|---|
Time and frequency synchronisation scheme for orthogonal frequency division multiplexing-based cooperative systems |
Abstract | ||
|---|---|---|
In the cooperative relay system, different frames from different relays are not aligned in the time domain, and have different carrier frequency offsets (CFOs). Estimation of these timing offsets and CFOs is a crucial and challenging task. In this study, a new training structure is proposed, and a novel time and frequency synchronisation scheme is presented for orthogonal frequency division multiplexing-based (OFDM-based) cooperative systems. The coarse time synchronisation is accomplished by using the symmetric conjugate of the training symbol and the fine time synchronisation is accomplished by segment-moving correlation. The fractional frequency offset is estimated by using the phase difference of the received signal and the integral frequency offset is estimated by utilising the good autocorrelation of the training symbol in frequency domain. The analysis and the simulation results show that, compared with the traditional scheme, the proposed scheme has better timing and frequency offset estimation performance and lower complexity for OFDM-based cooperative systems. |
Year | DOI | Venue |
|---|---|---|
2013 | 10.1049/iet-com.2013.0059 | IET Communications |
Keywords | Field | DocType |
relay networks (telecommunication),performance estimation,training symbol,received signal phase difference,integral frequency offset estimation,cooperative communication,learning (artificial intelligence),orthogonal frequency division multiplexing-based cooperative relay system,frequency synchronisation scheme,ofdm modulation,autocorrelation,coarse time synchronisation scheme,symmetric conjugation,segment-moving correlation,correlation theory,estimation theory,time domain scheme,carrier frequency offset,ofdm,frequency domain scheme,timing offset estimation,fractional frequency offset estimation,training structure,synchronisation,cfo,learning artificial intelligence | Time domain,Frequency domain,Synchronization,Control theory,Carrier frequency offset,Frequency offset,Algorithm,Real-time computing,Mathematics,Orthogonal frequency-division multiplexing,Relay,Autocorrelation | Journal |
Volume | Issue | ISSN |
7 | 16 | 1751-8628 |
Citations | PageRank | References |
5 | 0.41 | 5 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Yi Guo | 1 | 12 | 1.45 |
| Gang Liu | 2 | 12 | 1.79 |
| Jianhua Ge | 3 | 1141 | 94.17 |
| Haiyang Ding | 4 | 413 | 29.61 |