Abstract
A software defined radio (SDR) approach to demonstrate the coexistence in Machine Type Communication (MTC) scenarios is presented. MTC in recent years has gained significant attention with its inclusion in the 5G business model. Spectrally efficient asynchronous communication is a key enabler in situations involving MTC. Past research has shown that some modifications to baseline cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) can achieve better out-of-band (OOB) suppression and enable asynchronous coexistence. Inspired by this research, we provide a real world example of coexistence using SDR. We demonstrate the ability to asynchronously transmitting waveforms in adjacent channels with very narrow guard bands in between, and still be able to receive and demodulate them with low error vector magnitude (EVM) and low bit error rate (BER) that are comparable to the baseline CP-OFDM that uses synchronous communication.
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This work was supported in part by NSF under Grant CNS-1836880, in part by MathWorks, and by donations from Analog Devices and Xilinx, Inc.
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Handagala, S., Leeser, M. (2021). Demonstrating Spectrally Efficient Asynchronous Coexistence for Machine Type Communication: A Software Defined Radio Approach. In: Caso, G., De Nardis, L., Gavrilovska, L. (eds) Cognitive Radio-Oriented Wireless Networks. CrownCom 2020. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 374. Springer, Cham. https://doi.org/10.1007/978-3-030-73423-7_6
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