Name
Title | ||
|---|---|---|
Joint channel and frequency offset estimation using sigma point Kalman filter for an OFDMA uplink system |
Abstract | ||
|---|---|---|
In uplink transmissions of a coded orthogonal frequency division multiple access (C-OFDMA) system, a frequency synchronization has to be addressed. Few papers deal with this issue. Expectation - maximization (EM) approaches have been proposed but initialization strategies must be considered because the EM may converge to a local extremum. Here we propose a joint estimation of the channel and the carrier frequency offset (CFO) based on a sigma point Kalman filter. When considering an OFDMA uplink system over a Rayleigh fading channel, simulation results confirm that the proposed algorithm corresponds to a good compromise between CFO and channel estimation, bit error rate and computational cost. Since our approach has a lower computational complexity, the power consumption is lower, which is a great advantage in a wireless system. |
Year | Venue | Keywords |
|---|---|---|
2010 | Aalborg | kalman filters,ofdm modulation,rayleigh channels,channel estimation,code division multiple access,computational complexity,error statistics,expectation-maximisation algorithm,frequency division multiple access,frequency estimation,synchronisation,c-ofdma system,ofdma uplink system,rayleigh fading channel,bit error rate,coded orthogonal frequency division multiple access system,computational cost,expectation maximization approach,frequency synchronization,initialization strategies,joint channel offset estimation,joint frequency offset estimation,power consumption,sigma point kalman filter,uplink transmissions,wireless system,uplink,ofdm,estimation |
Field | DocType | ISSN |
Rayleigh fading,Computer science,Control theory,Carrier frequency offset,Frequency offset,Communication channel,Orthogonal frequency-division multiple access,Orthogonal frequency-division multiplexing,Bit error rate,Telecommunications link | Conference | 2219-5491 |
Citations | PageRank | References |
2 | 0.41 | 7 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Héctor Poveda | 1 | 8 | 2.61 |
| Guillaume Ferré | 2 | 36 | 13.29 |
| Eric Grivel | 3 | 136 | 33.92 |