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Efficient MRFFT Feedback-Commutator Technique for Handling Data Flow Control in Narrow Band-IOT Based LTE

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Abstract

Narrowband Internet of Things (NB-IoT) has been utilized in a vast range of applications. The conventional NB-IoT is subjected to the limitation of reduced coverage, limited power, and delay. The conventional NB-IoT uses orthogonal frequency-division multiplexing with Long Term Evolution (LTE) is applied, which increases the network complexity. The increase in network complexity increases power consumption and delay. To overcome those limitations, modified Reduced Fast Fourier Transmission (MRFFT) sample generation technique is used in every Uplink transmission for in CAT-0 and CAT-4 based LTE implementation technique. Multiple sample frequency transmission techniques will be required for Up Link (UL) based on control information for getting from Down Link (DL). In this paper, an effective R2MDC—MRFFT technique has been used to combine hardware and data flow complexity. The proposed MRFFT architecture uses “Feedback (R2)-Commutator (R4) MRFFT” is utilized for reducing latency and hardware complexity of the data path flow part of NB-IoT in LTE. The design of feedback-commutator architecture provides the same functionality with increasing throughput (2.4 GSamples) with 30.605 ns latency reduction, lower power consumption, and reduced coverage enhancement. The proposed feedback-commutator based frequency transmission technique is compared with the traditional frequency transmission technique used in CAT-0, CAT-4 devices. This enhanced MRFFT sample generation technique is incorporated into data flow heterogeneous architecture of NB-IoT design procedure to improve the design performances of LTE wireless communication in the perspective of coverage in low mobility.

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Authors and Affiliations

  1. Department of Electronics and Communication Engineering, SRM Institute of Science and Technology, Chennai, India

    Kabilamani P & Gomathy C

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  1. Kabilamani P
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  2. Gomathy C
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Kabilamani, P., Gomathy, C. Efficient MRFFT Feedback-Commutator Technique for Handling Data Flow Control in Narrow Band-IOT Based LTE. Wireless Pers Commun 117, 1163–1186 (2021). https://doi.org/10.1007/s11277-020-07916-9

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