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- W4234077513 abstract "In this paper, Bit Error Rate (BER) of Orthogonal Frequency Division Multiplexing (OFDM) based cognitive radio network is analyzed in the presence of Primary User Interference (PUI). Since, the PUI signal affects only few subcarriers of the OFDM signal, it can be modeled as a sparsity vector. In this network model, half duplex Amplify and Forward (AF) relaying is considered in the absence of direct link. Further, it is assumed that the network is operating in the overlay mode, thus the primary user transmitted signal act as interference at secondary user relay and destination nodes. In this paper, the PUI is mitigated using convex optimization. Bit Error Rate (BER) is analyzed using Quadrature Phase Shift Keying (QPSK) Modulation and Quadrature Amplitude Modulation (16-QAM). Simulation results conclude that after primary interference suppression, the performance of the proposed system is significantly improved." @default.
- W4234077513 created "2022-05-12" @default.
- W4234077513 creator A5092285166 @default.
- W4234077513 date "2019-11-22" @default.
- W4234077513 modified "2023-09-30" @default.
- W4234077513 title "Bit Error Rate Analysis of Cognitive Radio Network in the Presence of Primary Interference" @default.
- W4234077513 doi "https://doi.org/10.35940/ijeat.f1350.0986s319" @default.
- W4234077513 hasPublicationYear "2019" @default.
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