By Topic

Using frequency-orthogonal pseudonoise (FOPN) sounding sequences to identify signals from multiple transmit antennas in mobile double-directional and relay channel sounding systems

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Bultitude, R.J.C. ; Commun. Res. Centre, Ottawa, ON, Canada ; Dahman, G.S. ; Hafez, R.H.M.

A method previously reported by the authors for identifying simultaneous signals from different Tx antennas is applied for double-directional channel sounding between a channel sounder base station (CSBS) and a channel sounder mobile station (CSMS), as well as for single input single output (SISO) channel sounding on relay channels in urban microcell-type Tx/Rx scenarios. Using this method, multiple-orthogonal signals are produced from one pseudo-noise code by using it to modulate RF carriers at pre-calculated offset frequencies. The frequency spectra of the resulting signals are interleaved and they occupy the same overall frequency band, but the spectral lines from different transmitters are separable using Fourier analysis of signals sampled at the CSMS receiver output. In theory, any arbitrary number of links from different transmitters can be measured simultaneously using this method. However, in practice, Doppler spreads limit the number of simultaneous soundings that can be made with acceptable isolation among resulting impulse response estimates. Herein, examples are given of results from double-directional channel sounding using a linear array of 4 Tx antennas at the CSBS and of relay channel sounding with one Tx antenna at the CSBS and one Tx antenna at a channel sounder relay station (CSRS).

Published in:

General Assembly and Scientific Symposium, 2011 XXXth URSI

Date of Conference:

13-20 Aug. 2011