… In this paper, we consider a cognitive radio network consisting of a primary user, a … the
bottom line secrecy rate without cooperation and the optimal achievable secrecy rate at the Nash …

… jammer in the underlay cognitive radio network was studied in [8]. In [17], the secrecy rate
of PU is maximized in MIMO channels subject to the minimum required shannon rate of SU. In …

… In Section II, we define our system model and achievable secrecy rates in cognitive Scenario
1. Section III presents the possible optimization problems for the given scenarios and their …

… with untrusted secondary users in cognitive radio networks was proposed, and the achievable
secrecy rate was derived. In [16… Taking this into account, we define the secrecy rate as [19] …

… a trade-off between the secrecy rate (SR) and energy efficiency (EE) in an underlay cognitive
radio network (CRN) that consists of a cognitive base station (CBS), a cognitive user (CU), …

… of information and JN beamforming to maximize the secrecy rate subject to per-antenna
power … To facilitate the maximization of the secrecy rate, we introduce an auxiliary variable to …

… the instantaneous secrecy rate as the performance metric, while in this paper we take the
slow fading of wireless channels into consideration and investigate the secrecy throughput of …

… the secrecy rate of secondary system, we formulate the achievable secrecy rate maximization
… system and information rate constraint at the PR. Specifically, we maximize the achievable …

… to compute the maximum achievable secrecy rate, while for the case with multi-antenna
eavesdropper receivers, we obtain various new bounds on the achievable secrecy rate. …

… , our objective is to improve the secrecy rates of all transmission via … secrecy rates according
to each phase above as follows: primary secrecy rate (PSR) is used to refer to secrecy rate …