Transmit design for MIMO wiretap channel with a malicious jammer
Duo Zhang, Weidong Mei, Lingxiang Li, Zhi Chen

TL;DR
This paper proposes transmit design strategies for MIMO wiretap channels with a malicious jammer, addressing different levels of eavesdropper channel knowledge to optimize secrecy capacity and power allocation.
Contribution
It introduces novel algorithms for power and spatial dimension allocation under various ECSI conditions, enhancing secrecy capacity in MIMO wiretap channels with jamming.
Findings
Algorithms effectively improve secrecy capacity.
Methods are computationally efficient.
Strategies adapt to different ECSI knowledge levels.
Abstract
In this paper, we consider the transmit design for multi-input multi-output (MIMO) wiretap channel including a malicious jammer. We first transform the system model into the traditional three-node wiretap channel by whitening the interference at the legitimate user. Additionally, the eavesdropper channel state information (ECSI) may be fully or statistically known, even unknown to the transmitter. Hence, some strategies are proposed in terms of different levels of ECSI available to the transmitter in our paper. For the case of unknown ECSI, a target rate for the legitimate user is first specified. And then an inverse water-filling algorithm is put forward to find the optimal power allocation for each information symbol, with a stepwise search being used to adjust the spatial dimension allocated to artificial noise (AN) such that the target rate is achievable. As for the case of…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
