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In this paper, a novel decentralized task allocation algorithm based on the Hungarian approach is proposed. The proposed algorithm guarantees an optimal solution as long as the agent network is connected, i.e., the second smallest eigenvalue of the Laplacian matrix of the agent graph is greater than zero. In order to show the motivation of the proposed algorithm, the original centralized auction and...
We consider nonlinear transceiver design for downlink multiuser multi-antenna secure communications with an external multi-antenna eavesdropper. The multi-antenna transmitter simultaneously transmits confidential-message-bearing signals and artificial noise (AN) using nonlinear Tomlinson Harashima precoding based on the limited channel state information feedback. For the proposed nonlinear secure...
In this paper, we propose a dynamic memory allocation approach for Xen virtualization platforms, called critical amount guaranteed memory allocation (CAGMA), to expand or shrink the allocated memory of each virtual machine (VM) dynamically with a guaranteed amount of available memory. The performance of a VM might be degraded when its available memory is insufficient (i.e., it might generate a large...
We consider nonlinear signal processing algorithms for downlink multiple-input multiple-output (MIMO) systems with multiple-antenna users. The design goal is to improve bit error rate (BER) performance by jointly optimizing the transceiver, data streams, and user ordering, under given total transmit power. We consider a general global objective function, whose elements are Schur-convex functions of...
In this paper, we present a decentralized cooperative multiple target tracking method for multiple Unmanned Aerial Vehicles (UAVs). The decentralized cooperative multi-target tracking algorithm incorporates an optimal sensor management scheme and a cooperative path planner. To localize and track targets, a set of Extended Kalman Filters (EKFs) is used onboard each UAV and resulting target estimates...
We consider the problem of secure communication in wireless fading channels in the presence of quantized version of the receivers channel sate information at transmit side. The transmitter has multiple antennas and is able to simultaneously transmits an information bearing signal and artificial noise. For general values of signal to noise ratio (SNR), we obtain the exact closed-form expression for...
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