Power-Constrained Secrecy Rate Maximization for Joint Relay and Jammer Selection Assisted Wireless Networks

Optimal power allocation for physical layer security in device‐to‐device communications using untrusted relays

“…For example, as studied in the work of Havary‐Nassab et al, for SNR balancing, half of the available total power is consumed by the relays. For these reasons, the total energy consumption constraint has been widely exploited in the literature for both performance analysis and network design . Furthermore, we assume all communication links have complex normal distribution.…”

“…For these reasons, the total energy consumption constraint has been widely exploited in the literature for both performance analysis and network design. 5,10,11,[16][17][18] Furthermore, we assume all communication links have complex normal distribution. Accordingly, the channels from D1-to-D2, D1-to-relay, relay-to-D2, and jammer-to-relay are respectively denoted by h 12 12 , 1r , r2 , and jr represent the channel gains between the D2D pair, D1 and relay, the relay and D2, and the jammer and relay, respectively.…”

“…Havary‐Nassab et al assume a relay network where for signal‐to‐noise ratio (SNR) balancing, half of the available total power is consumed by the relays. In the work of Guo et al, a transmitter and a receiver communicate in the presence of an eavesdropper using several intermediate nodes. Only one of these nodes is considered to be the relay for the communication between the transmitter and the receiver, and the rest of the nodes produce jamming signals as friendly jammers.…”

“…Havary-Nassab et al 10 assume a relay network where for signal-to-noise ratio (SNR) balancing, half of the available total power is consumed by the relays. In the work of Guo et al, 11 a transmitter and a receiver communicate in the presence of an eavesdropper using several intermediate nodes.…”

“…A long this line, we proceed to the OPA problem and secrecy rate analysis for the mentioned scenarios under two topologies T1 and T2. So far, the relays assisted cellular communications, [3][4][5][6][7][8][9][10][11][12][13] D2D communication using trusted relays, 22,26,27 and the security in cellular and D2D communications [14][15][16][17][18]23,28 are investigated. Here, we consider an overlay D2D pair that communicates with each other through an untrusted AF relay, where in addition to helping data transmission also plays the role of the eavesdropper.…”