Solutions for the MIMO Gaussian Wiretap Channel with a Cooperative Jammer

Details Solutions for the MIMO Gaussian Wiretap Channel with a Cooperative Jammer Solutions for the MIMO Gaussian Wiretap Channel with a Cooperative Jammer

2011-01-24

arxiv.org/abs/1101.4435v1

Computer Science

Information Theory

Scientific paper

We study the Gaussian MIMO wiretap channel with a transmitter, a legitimate receiver, an eavesdropper and an external helper, each equipped with multiple antennas. The transmitter sends confidential messages to its intended receiver, while the helper transmits jamming signals independent of the source message to confuse the eavesdropper. The jamming signal is assumed to be treated as noise at both the intended receiver and the eavesdropper. We obtain a closed-form expression for the structure of the artificial noise covariance matrix that guarantees no decrease in the secrecy capacity of the wiretap channel. We also describe how to find specific realizations of this covariance matrix expression that provide good secrecy rate performance, even when there is no non-trivial null space between the helper and the intended receiver. Unlike prior work, our approach considers the general MIMO case, and is not restricted to SISO or MISO scenarios.

Affiliated with

Also associated with

No associations

Rating

Solutions for the MIMO Gaussian Wiretap Channel with a Cooperative Jammer does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Solutions for the MIMO Gaussian Wiretap Channel with a Cooperative Jammer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Solutions for the MIMO Gaussian Wiretap Channel with a Cooperative Jammer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-635590