A. Troya, K. Maharatna, M. Krstić, E. Grass, and R. Kraemer (Germany)
OFDM, Synchronization, IEEE802.11a, ASIC design.
For OFDM transmissions, synchronization is one of the most performance critical operations. Synchronization is needed for preservation of orthogonality: timing offsets and frequency offsets destroy easily this orthogonality, leading to Inter-Symbol Interference (ISI) as well as Inter Carrier Interference (ICI). This paper is focused on the implementation of a synchronizer for the IEEE 802.11a standard [1], which is based on the OFDM transmission scheme. Details on the different blocks included in this implementation are provided. We finish our exposition with a comparison of our solution, which is based on the one presented in [2] with two other solutions found in the literature in [4] and [5].
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