Title :
Secrecy Rate Analysis of Jamming Superposition in Presence of Many Eavesdropping Users
Author :
Koike-Akino, Toshiaki ; Duan, Chunjie
Author_Institution :
Mitsubishi Electr. Res. Labs. (MERL), Cambridge, MA, USA
Abstract :
It has been shown that the secrecy capacity of a wireless network is pushed rapidly towards zero as the number of users in the network grows. To deal with this issue, a secure method which intentionally superposes precoded jamming signals has been proposed. In this paper, we analyze its advantage to realize a secure wireless network in the presence of a large number (e.g., hundreds) of eavesdropping users, for transmitting confidential messages. Our analysis and simulations demonstrate that the jamming superposition achieves high secrecy rate even for undesired cases where the channels for many eavesdroppers are noise-less and highly correlated with the intended receiver.
Keywords :
jamming; radio networks; telecommunication security; eavesdropping users; jamming superposition; precoded jamming signals; secrecy rate analysis; wireless network; Antennas; Base stations; Channel estimation; Interference; Jamming; Signal to noise ratio;
Conference_Titel :
Global Telecommunications Conference (GLOBECOM 2011), 2011 IEEE
Conference_Location :
Houston, TX, USA
Print_ISBN :
978-1-4244-9266-4
Electronic_ISBN :
1930-529X
DOI :
10.1109/GLOCOM.2011.6133990