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• W3177844802 abstract "Ambient backscatter communication (AmBC), a promising solution to future Internet of Things (IoT), has attracted increasing attention from both academia and industry in recent years. AmBC systems enable communications between RF-powered devices (e.g., tags and sensors) and AmBC receivers by utilizing ambient RF source signals from existing communication systems. Thus it offers a low-cost and energy-efficient means of communications for future IoT applications. In the current AmBC research, the impact of using channel coding on existing primary networks in terms of the bit-error-rate (BER) performance of the AmBC systems are mostly ignored. Low-density parity-check (LDPC) codes that offer fast encoding and decoding process have been proposed as promising channel codes in the fifth-generation (5 G) networks. In this paper, we investigate the BER performance of an AmBC system that uses LDPC-coded RF source signals. We have analytically derived the BER upper and lower bounds of both the RF source and tag signals for our proposed AmBC system. Simulation results show that the BERs of both signals decrease significantly, compared to conventional AmBC systems with uncoded RF source signals." @default.
• W3177844802 created "2021-07-19" @default.
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• W3177844802 date "2021-08-01" @default.
• W3177844802 modified "2023-10-16" @default.
• W3177844802 title "Performance Analysis of Ambient Backscatter Systems With LDPC-Coded Source Signals" @default.
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• W3177844802 doi "https://doi.org/10.1109/tvt.2021.3093912" @default.
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