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Performance Analysis of Cooperative Underlay Spectrum Sharing System in Co-channel Interference Limited Environment

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Abstract

In this paper, performance analysis of an asynchronous distributed space time block coded system with optimum combining at the cognitive radio receiver (CR-Rx) has been done in a cooperative underlay cognitive Internet of Things network under the influence of multiple co-channel primary users (PUs) interferers. The transmit power strategy being employed at the CR-Tx considers the PIP (peak interference power) at the PU-Rx and peak transmit power constraints at the CR-Tx, respectively. We have derived the probability density function of the signal-to-interference ratio (SIR) at the destination for the proposed system. The system is numerically and mathematically analyzed in terms of average post processed SIR (APPSIR), ergodic capacity (\({\text{C}}_{\text{erg}}\)), average bit error rate (ABER) and outage probability. All the numerical outcomes are in corroboration with its simulation counterpart.

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Authors and Affiliations

  1. ECED, TIET, Patiala, Punjab, India

    Varsha Vimal Sood, Kavita Vij Bindra, Rajesh Khanna & Surbhi Sharma

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  1. Varsha Vimal Sood
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  2. Kavita Vij Bindra
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  3. Rajesh Khanna
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Correspondence to Kavita Vij Bindra.

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Sood, V.V., Bindra, K.V., Khanna, R. et al. Performance Analysis of Cooperative Underlay Spectrum Sharing System in Co-channel Interference Limited Environment. Wireless Pers Commun 113, 99–114 (2020). https://doi.org/10.1007/s11277-020-07180-x

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