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|Title:||OV-CDMA system: concept and implementation||Authors:||Inaty, Elie
|Affiliations:||Department of Electrical Engineering
Department of Computer Engineering
|Issue Date:||2009||Part of:||EURASIP journal of wireless communication and networks||Volume:||2008||Start page:||1||End page:||9||Abstract:||
A new method is proposed to achieve a multirate overlapped code division multiple access system (OV-CDMA) based on a novel code overlapping procedure. The signal-to-interference ratio (SIR) performance has been investigated for such system. A channel model that allows multirate overlapped transmission is presented based on which a closed form solution for the SIR has been derived. In addition, a simple yet very efficient block diagram of the transmitter and the receiver architecture has been proposed for such a system. Based on the proposed block diagram, the encoder-decoder has been implemented using an FPGA. Numerical results show that the newly proposed OV-CDMA scheme outperforms the classical variable processing gain fast frequency hopping CDMA (VPG-FFH-CDMA) for different system scenarios. Finally, real-time measurements have been successfully obtained using a hardware prototype utilizing the simple Xilinx Spartan IIE (XC2S200E) FPGA.
|URI:||https://scholarhub.balamand.edu.lb/handle/uob/2352||Ezproxy URL:||Link to full text||Type:||Journal Article|
|Appears in Collections:||Department of Electrical Engineering|
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