Title :
Interference Alignment for the MIMO Wiretap Channel with a Hostile Jammer
Author :
Chuanchuan Sun ; Zhi Chen ; SiWei An
Author_Institution :
Nat. Key Lab. of Sci. & Technol. on Commun., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
In this paper, the problem of maximizing the secrecy capacity is studied in the wiretap channel with a hostile jammer. Considering the defective performance of the conventional Singular Value Decomposition(SVD) algorithm in the high SNR regime, we firstly propose a beamforming(BF) scheme based on the Interference Alignment(IA) to jointly eliminate the influence from the jamming signal and artificial noise. Then, in order to achieve higher secrecy capacity, a new power allocation method is derived. Finally, Monto Carlo simulations show that the proposed algorithm performs better than the conventional algorithm.
Keywords :
MIMO communication; Monte Carlo methods; array signal processing; data privacy; interference suppression; jamming; radiofrequency interference; radiofrequency power transmission; singular value decomposition; wireless channels; IA-based beamforming scheme; MIMO wiretap channel; Monte Carlo simulations; SNR regime; SVD algorithm; artificial noise; hostile jammer; interference alignment; interference alignment-based beamforming scheme; jamming signal; power allocation method; secrecy capacity maximization; singular value decomposition algorithm; Array signal processing; Interference; Jamming; MIMO; Resource management; Signal to noise ratio;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing (WiCOM), 2012 8th International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-61284-684-2
DOI :
10.1109/WiCOM.2012.6478548
