Abstract
Signal clipping is known to be the simplest method to reduce the peak to average power ratio (PAPR) in OFDM systems. Clipping will introduce the clipping noise (CN) degrading system performance. Most clipping noise mitigation algorithms require to know the clipping ratio (CR) in the receiver; however, this may not be possible for all applications. We propose a new clipping ratio estimation method which can be applied to pilot-tone-based OFDM systems. Simulation results show that the proposed algorithm can estimate CR accurately and clipping noise can be effectively mitigated.
Original language | English |
---|---|
Article number | 1543414 |
Pages (from-to) | 797-800 |
Number of pages | 4 |
Journal | IEEE Vehicular Technology Conference |
Volume | 61 |
Issue number | 2 |
DOIs | |
State | Published - 30 May 2005 |
Event | 2005 IEEE 61st Vehicular Technology Conference -VTC 2005 - Spring Stockholm: Paving the Path for a Wireless Future - Stockholm, Sweden Duration: 30 May 2005 → 1 Jun 2005 |
Keywords
- Cupping noise
- OFDM