New algorithms for blind block synchronization in zero-padding systems
Journal
ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing
Journal Volume
3
Date Issued
2007
Author(s)
Abstract
Blind channel identification using linear redundant interbank precoders (LRP) has been studied extensively in the literature. Most methods are proposed based on the assumption that block synchronization is perfect. In practice, a blind block synchronization algorithm must be used to justify this assumption. This paper studies the blind block synchronization problem in systems using a zero-padding (ZP) precoder. A previously reported method is reviewed and a new approach for the problem is proposed. Generalized versions of both approaches are then developed using a parameter called repetition index. Simulation results show that when the repetition index is chosen to be greater than unity, the block synchronization error rate performance of the proposed algorithm has a significant improvement over the previously reported method. © 2007 IEEE.
Type
conference paper