Impact of Relay’s Eavesdropping on Untrusted Amplify-and-Forward Networks Over Nakagami- $m$ Fading

Physical layer security in cooperative amplify‐and‐forward relay networks over mixed Nakagami‐ m and double Nakagami‐ m fading channels: performance evaluation and optimisation

“…PHY-security, due to its appealing advantages, has been widely investigated in the literature ( [7][8][9][10][11][12][13][14][15] and the references therein). However, all these works are limited to the scenario, where nodes in the network are stationary and the channel between them is modelled as either classical Rayleigh fading [7][8][9][10][11][12] or Nakagami-m fading [13][14][15], whereas, vehicular networks involve vehicle-to-vehicle (V2V) links (i.e. when both transmitter and receiver are in motion), and the channel between two mobile nodes can be modelled as cascaded Rayleigh or cascaded Nakagami-m fading, since it can appropriately capture the probabilistic channel effects [16,17].…”

“…The relay location and power allocation optimisation problems are widely investigated in the literature (see [30][31][32][33] and the references therein), without considering PHY-security aspects. Under PHY-security, the optimal power allocation problem has been extensively studied for cooperative relaying networks [12,13,[34][35][36][37]. Specifically, the authors of [12,13,34,35] studied the power allocation optimisation problem for cooperative relaying networks under an untrusted relay scenario.…”

“…Under PHY-security, the optimal power allocation problem has been extensively studied for cooperative relaying networks [12,13,[34][35][36][37]. Specifically, the authors of [12,13,34,35] studied the power allocation optimisation problem for cooperative relaying networks under an untrusted relay scenario. Furthermore, Qian et al [36] investigated the optimal power allocation for a multiple DF-based cooperative relaying network under PHY-security.…”

Secure AF relaying with efficient partial relay selection scheme

“…He et al introduced the cooperative jamming technique into an untrusted network with N source‐destination pairs and presented user‐pair selection schemes. For Nakagami‐ m fading, the impact of eavesdropping on SOP performance for AF relaying with an untrusted relay was investigated in Ding et al…”

“…He et al 21 introduced the cooperative jamming technique into an untrusted network with N source-destination pairs and presented user-pair selection schemes. For Nakagami-m fading, the impact of eavesdropping on SOP performance for AF relaying with an untrusted relay was investigated in Ding et al 22 Comparisons with the existing literatures about the PRS schemes are emphasized in Table 1. Different from the previous literatures in two-hop relay selection scheme 8,9,12,16 and conventional PRS scheme, 10,16 this paper focuses on how to design an efficient PRS scheme to achieve the better secrecy performance, while reducing the feedback overhead over two-hop relay selection criterion.…”