Abstract
In this paper, we investigate the performance of a two-way hybrid satellite multi-terrestrial cooperative network with hardware impairments (HIs). Particularly, opportunistic relay selection scheme is employed in the considered network, which can substantially enhance the spectral efficiency and spatial diversity gain. By considering both the amplify-and-forward (AF) and decode-and-forward (DF) relay protocols, the closed-form expressions of the outage probability (OP) and throughput for the system are derived. Furthermore, in order to observe the effects of HIs level and the number of terrestrial relays on the system performance at high signal-to-noise ratios (SNRs), the asymptotic expressions of the system performance are also derived. Finally, computer results are presented to reveal the correctness of the analytical results.
Highlights
Satellite communication (Satcom) has become an outgrowth of the continuing demand for higher capacity, real-time communication and wider coverage, due to its unique ability to provide seamless connectivity and high data rate [1,2,3]
We have investigated the performance of the two-way satellite multiple terrestrial relay networks with hardware impairments (HIs) and opportunistic relay selection scheme, where both AF and DF protocols have been considered in the system
We have derived the analytical expressions of the outage probability (OP) and throughput for both AF and DF protocols, respectively, from which we can get the fast ways to calculate the effect of HIs on the considered system
Summary
Satellite communication (Satcom) has become an outgrowth of the continuing demand for higher capacity, real-time communication and wider coverage, due to its unique ability to provide seamless connectivity and high data rate [1,2,3]. In [20], the authors analyzed the multiple terrestrial relay and multiple user HSTCN with max-max selection scheme, where the analytical expression for the outage probability (OP) was derived. In [32], the authors studied the impact of hardware impairments (HIs) on the considered two-way relay networks by deriving the analytical expression of the OP. In [39], the authors derived the analytical expression of the OP for the satellite relay network in the presence of interference and HIs. In [40], the authors studied the OP for the considered networks by means of relay selection scheme without direct link in HIs environment. Gaussian distribution of a random vector a and covariance matrix b, C M× N the M × N dimensional complex positive semidefinite matrix
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