Abstract
The main purpose of this paper is to study the frequency synchronization problem in OFDM systems. A new frequency synchronization method is achieved by means of an all-digital synchronization loop including acquisition and tracking modes. The frequency offset is estimated only once per frame. The acquisition algorithm is based on periodically inserted reference symbols, and the tracking algorithm on the cyclic prefix of the OFDM symbols. The algorithm performance is assessed in an AWGN channel with a low SNR value and in the presence of a timing inaccuracy. The simulations show that the algorithm is accurate and the suggested frequency synchronization scheme works well.
| Original language | English |
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| Title of host publication | Proceedings of 8th International Symposium on Personal, Indoor and Mobile Radio Communications |
| Subtitle of host publication | PIMRC '97 |
| Publisher | IEEE Institute of Electrical and Electronic Engineers |
| Pages | 327-331 |
| Volume | 2 |
| ISBN (Print) | 0-7803-3871-5 |
| DOIs | |
| Publication status | Published - 1997 |
| MoE publication type | Not Eligible |
| Event | 8th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC '97 - Helsinki, Finland Duration: 1 Jul 1997 → 4 Jul 1997 Conference number: 8 |
Conference
| Conference | 8th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC '97 |
|---|---|
| Abbreviated title | PIMRC '97 |
| Country/Territory | Finland |
| City | Helsinki |
| Period | 1/07/97 → 4/07/97 |
Keywords
- Frequency synchronization
- Frequency estimation
- Tracking loops
- OFDM
- Phase estimation
- AWGN channels
- Timing
- Research and development
- Data communication
- Degradation