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MMSE Estimation Enabled Full-Duplex Ambient Backscatter Systems

delete2026-05-21
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PRE
AI
B
B. Srikar Ranganath
K
Kumar Appaiah
DOI:10.1109/tgcn.2026.3695517delete
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Abstract

Abstract

En 中文
Ambient Backscatter Communication (AmBC) is a wireless communication technology that allows devices to communicate without the need for any active radio frequency (RF) components by modulating ambient RF signals from other active sources. However, like regular wireless communication systems, the performance of AmBC systems is contingent on the availability of accurate channel state information (CSI) at the receiver. In this paper, we present a novel iterative MMSE based channel estimation technique for full duplex AmBC systems with an efficient pilot utilization scheme. We then use these MMSE estimates to derive expressions for the rates achievable over all the links in the considered AmBC system. Finally, using extensive numerical simulations, validate our derived results and show that the proposed algorithm outperforms the state of the art machine learning based channel estimation algorithms considered in the literature.
Keywords:
Backscatter communications
full duplex
MMSE channel estimation
performance analysis

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IEEE Transactions on Green Communications and Networking
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iit guwahati
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Texas Instruments
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iit bombay
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