An AGC Proposal with Frame and Carrier Synchronization for Burst Transmission Systems

Konferenz: European Wireless 2006 - 12th European Wireless Conference 2006 - Enabling Technologies for Wireless Multimedia Communications
02.04.2006 - 05.04.2006 in Athens, Greece

Tagungsband: European Wireless 2006

Seiten: 7Sprache: EnglischTyp: PDF

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Reinhardt, Steffen; Trommer, Ingmar; Huemer, Mario (Institute for Electronics Engineering, University of Erlangen-Nuremberg, Erlangen, Germany)

This paper provides an automatic gain control (AGC) algorithm applicable in high speed burst communication systems. Since under multipath propagation a common AGC can severely degrade the performance of the frame synchronization algorithms used in packet transmission systems, a new interface is particularly designed to perform automatic gain control in conjunction with the applied timing and coarse frequency synchronization. We simulated our AGC interface in a Single Carrier (SC) system with Frequency Domain Equalization (FDE) in the presence of noise and multipath fading, but the techniques are also applicable to multi-carrier systems as orthogonal frequency division multiplexing (OFDM). Simulation results let conclude that the applied synchronization algorithms in combination with our AGC interface do not need a preamble as long as the short preamble specified in IEEE802.11g to yield an optimal system performance.