We propose a joint optimal power allocation and sensing threshold selection for capacity maximization at the secondary user (SU) in spectrum sharing (SS) cognitive radio networks (CRNs). Hence, both optimal power allocation (OPA) and spectrum sensing (SpSe) is considered in the SS CRNs model. The obtained results show that such a joint optimal selection improves the performance of the SU by max...

This work considers the performance of the downlink channel of MIMO cellular networks serving multiple users with different statistical QoS requirements. The paper proposes resource allocation algorithms that aim to optimize the system performance over the sum of the optimal user utility functions by employing the effective capacity theory. Proportionally fair resource allocation among the user...

Optimal power allocation for secure estimation of multiple deterministic parameters is investigated under a total constraint. The goal to minimize the Cramer-Rao lower bound (CRLB) at an intended receiver while keeping errors eavesdropper above specified target levels. To that end, optimization problem formulated by considering measurement models involving linear transformation parameter vector...

In this paper we investigate power allocation in MIMO-OFDM systems. We describe the optimal power allocations under two different constraints: a constraint on the total power of all transmitters (TXs) which is applicable in wireless applications, and a constraint on the power of each TX which is more relevant in wireline applications. We describe the optimal TX/RX structure which in combination...