Joint Power and Beam Optimization in a Multi-Carrier MIMO Wiretap Channel with Full-Duplex Jammer


O. Taghizadeh, T. Yang, R. Mathar,


        In this paper we address a sum secrecy rate maximization problem for a multi-carrier and MIMO communication system. We consider the case that the receiver is capable of fullduplex (FD) operation and simultaneously sends jamming signal to a potential eavesdropper. In particular, we simultaneously take advantage of the spatial and frequency diversity in the system in order to obtain a higher level of security in the physical layer. Due to the non-convex nature of the resulting mathematical problem, we propose an iterative solution with a guaranteed convergence, based on block coordinate descent method, by re-structuring our problem as a separately convex program. Moreover, for the special case that the transmitter is equipped with a single antenna, an optimal transmit power allocation strategy is obtained analytically, assuming a known jamming strategy. The performance of the proposed design is then numerically evaluated compared to the other design strategies, and under different system assumptions.

BibTEX Reference Entry 

	author = {Omid Taghizadeh and Tianyu Yang and Rudolf Mathar},
	title = "Joint Power and Beam Optimization in a Multi-Carrier {MIMO} Wiretap Channel with Full-Duplex Jammer",
	pages = "1316-1322",
	booktitle = "{ICC}2017: WT07-Workshop on Full-Duplex Communications for Future Wireless Networks ({ICC}2017-WT07)",
	address = {Paris, France},
	month = May,
	year = 2017,
	hsb = RWTH-2017-05805,


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