Performance characterization of UWB SSMA using orthogonal PPM-TH in dense multipath

Authors:
Fernando Ramírez-Mireles
Affiliations:
Instituto Tecnológico Autónomo de México (ITAM), México City, D.F., México
Venue:
PWC'06 Proceedings of the 11th IFIP TC6 international conference on Personal Wireless Communications
Year:
2006

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Abstract

In this work we study ultra wideband (UWB) communications over dense multipath channels using orthogonal pulse position modulation (PPM) for data modulation and time-hopping (TH) for code modulation. We consider the effects of the multiple access interference (MUI) in asynchronous spread spectrum multiple access (SSMA) based on random TH codes. We consider a realistic multipath channel to analyze the effects of the transmission rate in the number of users for different bit error rate (BER) values.