… The lower bound of the ergodic secrecy capacity (ESC) without optimal power allocation (…
, we take into account CJ and OPA for securing the transmission in twohop amplify-and-forward …

… study the optimal power allocation between transmission of … power allocation is shown to
be a simple strategy that achieves nearly the same secrecy rate as the optimal power allocation…

… To the best of our knowledge, however, cooperative communications over multiple carriers
… -theoretic security. In this paper, we are interested in the optimal power allocation issue in …

… to enhance the secure performance. We first find the optimal power allocation strategy when
… We then evaluate the security level through: i) ergodic secrecy rate and ii) secrecy outage …

… they can provide significant consultants for secure system design. In the next section, we
will provide an optimal power allocation scheme for actual distributed massive MIMO system. …

… In this paper, the authors deal with secure transmission in two-hop amplify-and-forward …
secure best relay selection (BRS) and optimal power allocation (OPA) for uplink transmission of …

… of allocating a large portion of the transmit power to artificial noise generation. In [28], Pei et
al. addressed the power allocation … channel model for secure communication with SWIPT. …

… Then we describe the proposed joint optimal power allocation and cooperative AN-aided
beamforming (OPACANB) scheme involved for providing PLS in our network. …

… power allocation at the jammers. To circumvent this nonconvexity, the achievable secrecy
rate is approximated for a given power allocation … to obtain the optimal power allocation at the …

… The results reveal that the proposed jammer-assisted secure transmission can greatly …
save more energy for information signals, which is significant for future wireless communication. …