## 1 Introduction
### Related Works  
The performance analysis of low-power network models in which backscatter communication and wireless energy harvesting techniques are integrated into the system has been investigated in many studies in the literature. In [34], the authors proposed a system model in which the backscatter device transmits information to two users and has a symbiotic relationship with the signal emitter. Using the non-orthogonal multiple access (NOMA) technique, the dependence of the optimal power allocation of the system on different system parameters is demonstrated by tuning the reflection coefficient of the device. The SR model where the relay node transmits the signals of multiple users to the BS is proposed in [35]. In this model, the power minimization problem is posed to minimize the transmission power of the relay and this problem is solved by optimization algorithms. In another study, the authors analyzed the channel capacity under the constraint of circuit sensitivity for symbiotic communication [36]. It has been shown that the circuit sensitivity of devices in SR systems can have a significant impact on the overall system capacity. In [37], an SR is considered where backscatter devices (BDs) transmit their signals from the primary receiver (PR) to the primary transmitter (PT) over radio frequency carriers. In the model, where spatial division multiple access (SDMA) and time division multiple access (TDMA) schemes are used, the optimization problem is derived to maximize the overall rate of the BDs. In another study [38], the authors proposed a simultaneous access (SA) scheme and a selection diversity access (SDA) scheme to facilitate large IoT connections using cellular network. In [39], a cooperation scheme between IoT devices and base station is designed considering the financial situation to appropriately utilize spectrum, power and time resources in SR. In [40], the authors maximize the ergodic privacy ratio for SR by deriving it in closed form. Another study evaluated the presence of multiple EDs in the system [41]. In [42], the authors proposed a jammer-assisted system to improve the PLS of a full-duplex cooperative NOMA network. Analytical expressions for users' secrecy outage probabilities (SOPs) are derived by considering noncooperative eavesdropping, hardware failures, and imperfect SIC conditions. In [43; 44], approaches are considered where the jammer cooperates with the users in the network to reduce the signal-to-noise ratio (SNR) of the ED and the receiver is assumed to use the perfect SIC technique to recover the information. In another work, a wireless communication model based on opportunistic spectrum sensing using backscattering and energy harvesting technique is proposed [45]. In this model, which aims to maximize energy efficiency, the effect of the presence of sensing errors on system performance is tested. In [46], the authors investigated the effect of imperfect spectrum sensing on system performance. The results show that the presence of imperfect sensing severely degrades the performance of the system. In [47], the authors examine the implementation of friendly jamming in order to increase the security of information in wireless networks. In particular, the impact of channel state information and a number of jammers on security performance is investigated. In [48], the authors propose a friendly jamming and relay selection approach to improve wireless networks' physical layer security. A novel relay and jamming selection strategy that does not rely on channel state information is presented, along with an analysis of the drawbacks of the current approaches. In [49], the authors suggest a technique to improve physical layer security and the proposed scheme. In [49], the authors proposed a jamming and relay selection approach to improve wireless networks' physical layer security. In [48], the authors proposed a jamming and relay selection approach to improve wireless networks' physical layer security.