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Blind synchronization in asynchronous multiuser packet networks using KMA

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2 Author(s)
Djapic, R. ; Dept. of Electr. Eng., Delft Univ. of Technol., Netherlands ; van der Veen, A.-J.

In a system with multiple (interfering) users transmitting data packets asynchronously, we consider separating the user of interest by blind beamforming. The transmitter gives the signal a unique "color code" by modulating the power of each symbol, in a pattern known to the receiver. The beamformer can then be computed using CMA-like algorithms. In this paper, we consider the associated synchronization problem: the receiver does not know when a packet will arrive and has to detect the onset of a packet. We propose an extension of the algebraic known modulus algorithm (AKMA) to take this problem into account.

Published in:

Signal Processing Advances in Wireless Communications, 2003. SPAWC 2003. 4th IEEE Workshop on

Date of Conference:

15-18 June 2003