On the modulation and signalling design for a transform domain communication system. Issue 16 (1st November 2014)

• Record Type: Journal Article
• Authors: Lin, Rui; Bi, Guoan; Liu, Xin; Guan, Yong Liang
• Is Part Of: IET communications. Volume 8:Issue 16(2014)
• Page Start: 2909
• Page End: 2916
• Publication Date: 2014-11-01
• Subjects: antenna arrays -- modulation -- fading channels -- transforms; multiple antenna system -- receive antenna -- transmit antennas -- TDCS system -- slow channel fading -- unified modulation framework -- spectral efficiency -- unused frequency bands -- adaptive waveform -- low probability -- communication link -- transform domain communication system; Telecommunication systems -- Periodicals; Speech processing systems -- Periodicals; 621.38205
• DOI: 10.1049/iet-com.2013.1076
• Languages: English
• ISSNs: 1751-8628

Abstract

Abstract : Transform domain communication system (TDCS) has been proposed to establish a communication link with a low probability of interception by synthesising an adaptive waveform containing energy only in the unused frequency bands. However, this communication system suffers from a low spectral efficiency. To improve its spectral efficiency, a unified modulation framework for a TDCS is proposed in this study to embrace the previously reported modulation schemes under one framework. The resulting spectral efficiency is higher compared to these previous schemes. Also, to combat the slow channel fading, a TDCS system using two transmit antennas and one receive antenna with the proposed modulation scheme is presented. Simulation results show that the multiple‐antenna system improves the performance dramatically compared to the single antenna system under the slow fading environment.