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Theoretical Performance of Transform Domain Communication Systems

Authors:
Guillaume Fumat
Pascal Chargé
Ahmed Zoubir
Danièle Fournier-Prunaret
Irène Mahafeno

Keywords: TDCS, spectral efficiency, CSK, cognitive radio, multidimensional modulation

Abstract:
Transform Domain Communication System (TDCS) is a cognitive-radio technology that avoids frequency underutilization by doing spectrum-scavenging. Although TDCSs' is well-known when dealing with interferers, theoretical limits of TDCS in terms of spectrum efficiency remain unknown. Based on the TDCS' multidimensional property, we detail them in terms of spectrum efficiency and Bit Error Rate (BER). It is shown that most of previous TDCSs had suboptimal performances. Guidelines are given to improve these metrics without much increase in system's complexity.

Pages: 48 to 53

Copyright: Copyright (c) IARIA, 2011

Publication date: March 20, 2011

Published in: conference

ISSN: 2308-4030

ISBN: 978-1-61208-123-6

Location: St. Maarten, The Netherlands Antilles

Dates: from March 20, 2011 to March 25, 2011