Adjacent Channel Compatibility Evaluation and Interference Mitigation Technique Between Earth Station in Motion and IMT-2020

Kim, Hyun-Ki; Cho, Yeongi; Jo, Han-Shin

doi:10.1109/access.2020.3039799

Cited by 11 publications

(9 citation statements)

References 17 publications

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“…In this paper, a methodology is presented and simulated to obtain FDR versus the three variables of latitude, carrier frequency and the number of passing ships, separately, so that the minimum allowed distance of the ship from the shore remains desired constant value. FDR is caused by shifting the M-ESIM frequency band [8]. The frequency shift determination is not investigated in this paper.…”

Section: Introductionmentioning

confidence: 99%

“…For example, the IMT-2020 international project in South Korea, as well as some leading countries, examines the effects of coexistence and the sharing of 5G frequency bands with ESIM. The results of this project show that the frequency coexistence of the fifth generation communication network services and ESIM is guaranteed [6][7][8]. In [9], the frequency dependent rejection (FDR) parameter was used to interference management in the 5G communication network.…”

Section: Introductionmentioning

confidence: 99%

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A Graph-Based Content Similarity Approach for User Recommendation in Telegram

Karimpour¹,

Chahooki²,

Hashemi³

2021

IJICTR

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Determining and observing the minimum allowable distance of the marine earth station in motion (M-ESIM) from the shore prevents its destructive interference on the co-frequency shore fixed station. ESIMs are providing broadband Fixed Satellite Services (FSS). This paper studies the parameters involved in determining the minimum allowable distance of the ship from the shore by the interference simulation. The results show that with decreasing the carrier frequency, decreasing latitude or increasing the number of annual passing vessels, this minimum distance increases. In this paper a methodology is presented and simulated to keep constant the minimum allowed distance by adjusting the values of the frequency dependent rejection (FDR). FDR is caused by shifting the M-ESIM frequency band. The minimum distance of 100, 105 and 110Km is evaluated in this paper. In this way, the M-ESIM can be close to the shore as near as the desired distance using the FDR adjustment.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Graph-Based Content Similarity Approach for User Recommendation in Telegram

Karimpour¹,

Chahooki²,

Hashemi³

2021

IJICTR

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“…Inter-symbol interference channels arise in many communication systems, which can significantly degrade performance [3]. In this class of channels, orthogonal frequency division multiplexing (OFDM) modulation [4] is often taken into account to combat the ISI. However, the high peak to-average power ratios of the OFDM systems can result in low power amplifier efficiency [5].…”

Section: Introductionmentioning

confidence: 99%

Joint MMSE-RISIC and Channel Revised for SC-FDE Aeronautical Mobile Communication System

Pengyu

Xiang

2023

Preprint

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Under the condition of slow fading time-varying multipath channel with low rice factor, it is difficult to make effective use of signal energy, therefore, the traditional Minimum Mean Squared Error (MMSE) technique cannot effectively reduce the bit error rate. To solve the above problem, we proposes a new equalization scheme for aeronautical mobile communication based on MMSE andresidual intersymbol interference cancellation (MMSE-RISIC), firstly, the hard decision signal is modified to obtain the reconstruction signal of frequency domain, and then further decision is made according to the time domain error. Its essence is to modify the channel to make the estimated channel closer to the real channel. The simulation results show that the SNR can be improved by about 2-8dB with the same bit error performance, indicating that the equalization algorithm makes full use of the energy of the multipath component and obtains the signal-to-noise ratio gain.

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“…The other one is based on the Monte-Carlo statistical method, which is used to model random processes and obtain reliable data through a sufficient number of simulations. This method is appropriate for a more precise assessment of interference coexistence between systems in the case of multiple interferences [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

Analysis of LTE-M Adjacent Channel Interference in Rail Transit

Wang²,

Zhang

et al. 2022

Sensors

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Long Term Evolution-Metro (LTE-M), as a special communication system for train control, has strict requirements on adjacent channel interference (ACI). According to the 3rd Generation Partnership Project (3GPP) protocol of the European Telecommunications Standards Institute (ETSI) standards, this paper presents the required isolation degree for LTE-M systems to resist ACI. Aiming at the scenario of leaky cable transmission and antenna transmission adopted by the underground LTE-M system of the subway, the isolation degree required for LTE-M system deployment is deduced by combining the channel description with the principle of ACI. For the coexistence of a LTE-M system and an adjacent cellular system in a subway ground scenario, the Monte-Carlo (MC) method is used to simulate several conceivable scenarios of the LTE-M system and the adjacent frequency cellular system. In addition, the throughput loss of the LTE-M system is estimated by considering signal to interference plus noise ratio (SINR). Simulation results demonstrate that adjacent frequency user equipment (UE) has negligible small interference with the LTE-M underground system when using the leaky cable radiation pattern, whereas for the LTE-M ground system, the main interference comes from the adjacent frequency UE to the LTE-M base station (BS). Finally, interference avoidance solutions are presented, which can be utilized as a reference in the design and deployment of LTE-M systems in the rail transit environment.

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Adjacent Channel Compatibility Evaluation and Interference Mitigation Technique Between Earth Station in Motion and IMT-2020

Cited by 11 publications

References 17 publications

A Graph-Based Content Similarity Approach for User Recommendation in Telegram

A Graph-Based Content Similarity Approach for User Recommendation in Telegram

Joint MMSE-RISIC and Channel Revised for SC-FDE Aeronautical Mobile Communication System

Analysis of LTE-M Adjacent Channel Interference in Rail Transit

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