Required Guardband for Coexisting LTE/FDD Systems Obtained by Accurate Analysis Of Adjacent Channel Interference

J.-W. Jung Department of Electronic & Electrical Engineering, Pohang University of Science and Technology (POSTECH), San 31, Hyoja-Dong, Nam-Ku, Pohang, Kyoung-buk 790-784, Korea;, Email: [email protected]

D. S. Kim Department of Electronic & Electrical Engineering, Pohang University of Science and Technology (POSTECH), San 31, Hyoja-Dong, Nam-Ku, Pohang, Kyoung-buk 790-784, Korea

D. G. Cho Department of Electronic & Electrical Engineering, Pohang University of Science and Technology (POSTECH), San 31, Hyoja-Dong, Nam-Ku, Pohang, Kyoung-buk 790-784, Korea

Y.-S. Kim Department of Electronic & Electrical Engineering, Pohang University of Science and Technology (POSTECH), San 31, Hyoja-Dong, Nam-Ku, Pohang, Kyoung-buk 790-784, Korea

Abstract

Adjacent channel interference (ACI) can cause serious performance degradation in certain frequency bands when multiple LTE systems are deployed near each other. This paper proposes a more accurate ACI model to calculate the interference power from the adjacent system. A dynamic system level simulator is used to show and analyze the throughput loss as a function of ACI ratio (ACIR) at 2000 MHz. Effective ACIR to guardband mapping functions are derived to determine a more accurate guardband for coexisting LTE systems to satisfy the throughput loss requirement.

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Required Guardband for Coexisting LTE/FDD Systems Obtained by Accurate Analysis Of Adjacent Channel Interference

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Required Guardband for Coexisting LTE/FDD Systems Obtained by Accurate Analysis Of Adjacent Channel Interference

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