Title :
Covertwireless communications: temporal focusing and information theoretic methods
Author_Institution :
Jacobs Univ. Bremen, Bremen
Abstract :
This paper has compared temporal focusing with information theoretic criteria for covert wireless communications. This paper derives two information theoretic transmission strategies and compares the resulting performance to focusing. This work mainly considers temporal focusing by interpreting subchannels as frequency bins. However, spatial focusing is easily accommodated by taking the SVD of the spatial subchannels and stacking singular values for different frequency bins and spatial indices together.
Keywords :
radiocommunication; wireless channels; covert wireless communications; information theoretic methods; spatial subchannels; temporal focusing methods; Acoustical engineering; Frequency domain analysis; Information analysis; Interference; Jacobian matrices; Mutual information; Radio frequency; Stacking; Wideband; Wireless communication;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2007 IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-0877-1
Electronic_ISBN :
978-1-4244-0878-8
DOI :
10.1109/APS.2007.4396228
