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Blind recovery of multiple packets in ad hoc mobile networks using polynomial phase modulating sequences

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4 Author(s)
M. M. Lara ; Centro de Investigacion y de Estudios Avanzados, IPN, Mexico City, Mexico ; A. G. Orozco-Lugo ; D. C. McLernon ; H. J. Muro-Lemus

We consider multiple packet reception (MPR) for asynchronous random access wireless mobile ad hoc networks. An interference cancellation algorithm is proposed that exploits the base-band cyclostationarity properties of the signal, which are induced at the transmitters by means of modulating the symbols with distinct polynomial phase sequences. In contrast to the method presented in [A.J. van der Veen and L. tong, 2002], the proposed technique docs not require knowledge of the starting time of transmission of the desired signal and can be applied to dispersive multipath channels. Also a practical way of assigning the modulating sequences via the use of a common codebook known to all nodes is proposed, and the impact on local throughput of such scheme is analyzed.

Published in:

Multimedia and Expo, 2003. ICME '03. Proceedings. 2003 International Conference on  (Volume:2 )

Date of Conference:

6-9 July 2003