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Influence of Timing Offset in Multiband OFDM X. Yuan, J. Zhang, D. Jayalath and T. Abhayapala
 

Summary: Influence of Timing Offset in Multiband OFDM
Systems
X. Yuan, J. Zhang, D. Jayalath and T. Abhayapala
Wireless Signal Processing
National ICT Australia
Email: eric.yuan@rsise.anu.edu.au
ABSTRACT
In Cyclix Prefix OFDM (CP) systems, synchronization
to the maximal multipath signal generally causes no
problem, however, inter carrier interference (ICI) will be
introduced in Zero-padding OFDM (ZP-OFDM) systems,
e.g, multiband OFDM UWB (MB-OFDM) systems. In this
paper, based on the overlap-and-add (ZP-OFDM-OLA)
method typically applied in MB-OFDM, we analyze the
cause of the ICI and the performance degradation due to
the ICI. The expressions of the channel estimation error,
signal-to-noise ratio and ICI are derived. Simulation
results are also provided, which show good match with
the theoretical results.
I. INTRODUCTION

  

Source: Abhayapala, Thushara D. - Department of Information Engineering, Australian National University

 

Collections: Computer Technologies and Information Sciences