Skip to Main content Skip to Navigation
Conference papers

Prototype of Orthogonal Precoder-based Technique for Two-Tiered Cellular Networks

Abstract : In [1], we introduced a spectrum sharing technique called Vandermonde-subspace frequency division multiplexing (VFDM). This overlay technique allows the coexistence of a downlink orthogonal frequency division multiplexing (OFDM) macro-cell and a cognitive small-cell in a time division duplex mode. In that work, VFDM was shown to be able to completely cancel the interference towards a primary macro-cell system at the price of perfect channel state information (CSI) at the opportunistic secondary small-cell. In this work, we propose the first prototype of VFDM transceiver as a first step towards a proof of concept of the complete technique. We focus on the secondary small-cell and, using the new SDR4All platform [2], we design the transmitter/receiver pair needed for our test. Logic and hardware details are provided, as well as user definable parameters. The obtained results are promising and show the practical feasibility of a VFDM transmission over secondary link.
Document type :
Conference papers
Complete list of metadata
Contributor : Samir Medina Perlaza Connect in order to contact the contributor
Submitted on : Sunday, December 4, 2011 - 3:36:39 AM
Last modification on : Monday, December 14, 2020 - 2:36:02 PM
Long-term archiving on: : Monday, March 5, 2012 - 2:20:18 AM


Files produced by the author(s)


  • HAL Id : hal-00647970, version 1



Leonardo S. Cardoso, Marco Maso, Ejder Bastug, Merouane Debbah, Ozgur Ozdemir. Prototype of Orthogonal Precoder-based Technique for Two-Tiered Cellular Networks. World Wireless Research Forum 27, Oct 2011, Berlin, Germany. ⟨hal-00647970⟩



Les métriques sont temporairement indisponibles