Collaborative Relay Beamforming for Secure Broadcasting

Details Collaborative Relay Beamforming for Secure Broadcasting Collaborative Relay Beamforming for Secure Broadcasting

2010-04-06

arxiv.org/abs/1004.0914v1

Computer Science

Information Theory

Proc. of the IEEE Wireless Communications and Networking Conference (WCNC) Sydney, Austria, April 2010

Scientific paper

In this paper, collaborative use of relays to form a beamforming system with the aid of perfect channel state information (CSI) and to provide communication in physicallayer security between a transmitter and two receivers is investigated. In particular, we describe decode-and-forward based null space beamforming schemes and optimize the relay weights jointly to obtain the largest secrecy rate region. Furthermore, the optimality of the proposed schemes is investigated by comparing them with the outer bound secrecy rate region

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