Sliding-Trellis Based Frame Synchronization

Abstract : Frame Synchronization (FS) is required in several communication standards in order to recover the individual frames that have been aggregated in a burst. This paper proposes a low-delay and reducedcomplexity Sliding Trellis (ST)-based FS technique, compared to our previously proposed trellis-based FS method. Each burst is divided into overlapping windows in which FS is performed. Useful information is propagated from one window to the next. The proposed method makes use of soft information provided by the channel, but also of all sources of redundancy present in the protocol stack. An illustration of our STbased approach for the WiMAX Media Access Control (MAC) layer is provided. When FS is performed on bursts transmitted over Rayleigh fading channel, the ST-based approach reduces the FS latency and complexity at the cost of a very small performance degradation compared to our full complexity trellis-based FS and outperforms state-of-the-art FS techniques.
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Submitted on : Monday, August 29, 2011 - 1:44:52 AM
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  • HAL Id : inria-00614565, version 1
  • ARXIV : 1108.5705

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Usman Ali, Pierre Duhamel, Michel Kieffer. Sliding-Trellis Based Frame Synchronization. IEEE International Conference on Communications, Jun 2011, Kyoto, Japan. pp.1-5. ⟨inria-00614565⟩

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