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In order to enhance secrecy performance of protecting scenarios, understanding the illegitimate side is crucial. In this paper, from the perspective of the illegitimate side, the security attack from a full-duplex cyber-weapon equipped with massive antenna arrays is considered. To evaluate the behavior of the proposed cyber-weapon, we develop a closed-form, a tight approximation, and asymptotic expressions...
Half-duplex energy harvesting (EH) amplify-and-forward (AF) two-way relaying (TWR) significantly improves spectral and energy efficiency, excellently satisfying stringent requirements of 5G (Fifth-Generation) mobile communication networks. The current paper proposes an outage probability analysis framework for such relaying over Nakagami-m fading channels. Toward this end, we first derive an exact...
This paper proposes a chaos-based direct-sequence spread-spectrum (CDSSS) communication system using M-ary PSK modulation in combination with MIMO-OFDM technique. This combination aims at improving the performance as well as capacity of the conventional CDSSS systems over multipath fading channels. In the transmitter, the data is modulated by an M-PSK modulator whose output is fed to a MIMO encoder...
This paper investigates the effects of a primary user (PU) within a cognitive amplify-and-forward (AF) network using general selection combining (SC) techniques whilst under the influence of non-identical Rayleigh fading channels. The net- work’s operation will be determined mathematically by deriving a closed-form expression for the network outage probability (OP) from expressions for the probability...
This paper investigates a correlator-type receiver based on oversampling technique, which can exploit flat-fading characteristic to enhance the performance of chaotic directsequence/ code division multiple access (Chaotic DS/CDMA) systems over multipath fading channels. At the input of the receiver, the incoming signal is oversampled before putting into the correlator. This oversampling process aims...
The energy harvesting solution was proposed to prolong the life of a wireless network and meet the requirements of green communications for the future. Relaying networks are proved to improve the performance of wireless communication systems. This paper investigates an amplify-and-forward two- way relaying network over Nakagami-m fading channel, where an energy constrained single-antenna relay node...
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