The coexistence of OFDM-based systems beyond 3G with fixed service microwave systems

Jo, Han-Shin; Yoon, Ho‐Geun; Lim, Jae-Woo; Chung, Won-Gyun; Yook, Jong-Gwan; Park, Han-Kyu

doi:10.1109/jcn.2006.6182747

Cited by 22 publications

(22 citation statements)

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“…In [1], the coexistence of OFDM-based systems and fixed service microwave systems is studied. In [2], the coexistence studies in 3GPP Long Term Evolution (LTE) are described.…”

Section: Introductionmentioning

confidence: 99%

Coexistence analysis between IMT system and DTV system in the 700MHz band

Kim

Woo

2012

2012 International Conference on ICT Convergence (ICTC)

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In this paper, we analyze the coexistence between the International Mobile Telecommunications (IMT) system and the digital television (DTV) system in the 700MHz band. The 700MHz band is now called the "digital dividend" and is expected to be allocated to IMT services. This plan could cause mutual interference between existing broadcasting and the IMT services. The members in the Asia-Pacific Telecommunity Wireless Group are currently discussing the coexistence issues associated with the 700MHz band. In order to allocate this band to the IMT services without harming the DTV system, coexistence problems should be solved. This paper presents the simulation methodology for analyzing the mutual interference between the IMT and DTV system and provides the results of the performance degradation of the two systems.

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“…In [1], the coexistence of OFDM-based systems and fixed service microwave systems is studied. In [2], the coexistence studies in 3GPP Long Term Evolution (LTE) are described.…”

Section: Introductionmentioning

confidence: 99%

Coexistence analysis between IMT system and DTV system in the 700MHz band

Kim

Woo

2012

2012 International Conference on ICT Convergence (ICTC)

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“…Moreover, this method can be only adopted as a special case of the "static" interference situations. Coexistence and sharing of IMT-Advanced with point-to-point fixed services (FS) have been carried out by using the Advanced-MCL (A-MCL) method, which was derived to overcome the restriction of MCL method [6,7]. A-MCL method calculates the interference power depending on overlapping of the power spectral density (PSD) of the OFDM signals with the other systems that have a rectangular PSD shape such as FS system.…”

Section: Introductionmentioning

confidence: 99%

Interference coordination for LTE-Advanced and FM broadcasting interoperability

2011

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The surest way to guarantee that multiple wireless systems can concurrently exist harmlessly, when operating in the same or adjacent channel, is by analyzing spectrum overlapping. This paper proposes a more accurate model to evaluate the interference power from co-channel and adjacent channel of orthogonal frequency division multiplexing-based long term evolution-advanced (LTE-Advanced) towards broadcasting frequency modulation systems at 800 MHz. Power spectral density overlapping factor is employed, and closed form of the interference power loss is derived. Numerical results demonstrate that the proposed method evaluates more exact interference power than the advanced minimum coupling loss (A-MCL) method, where the co-channel and adjacent channel interference powers are reduced by 1.3 and 3 dB, correspondingly, compared to that obtained using the A-MCL method. This decreases the minimum separation distance between the two systems, which can eventually lead to efficient radio spectrum resources utilization.

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“…Some of recent coexistence studies which were carried out in the band (3.5 GHz) are in [8,9]. In [8] the study implemented by using Advanced Minimum Coupling Loss (A-MCL) between beyond 3G systems and fixed microwave services to get the minimum separation distance and frequency between the two systems.…”

Section: Introductionmentioning

confidence: 99%

“…In [8] the study implemented by using Advanced Minimum Coupling Loss (A-MCL) between beyond 3G systems and fixed microwave services to get the minimum separation distance and frequency between the two systems. Whereas in the [9], BWA system represented by FWA is studied to share the same band with point-to-point fixed link system also to determine the minimum separation distance and frequency separation.…”

Section: Introductionmentioning

confidence: 99%

Spectrum Sharing Studies of Imt-Advanced and Fwa Services Under Different Clutter Loss and Channel Bandwidths Effects

Shamsan¹,

Al-hetar²,

Rahman³

2008

PIER

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Abstract-Spectrum sharing between wireless systems becomes a critical issue due to emerging new technologies and spectrum shortage. Recently, IMT-Advanced system has been allocated in the same frequency band (3500 MHz) along with fixed services on co-primary basis, which means that harmful interference probability may be transpired. Channel bandwidths (BW) and natural of deployment areas of wireless systems are of the main effective factors in spectrum sharing. Spectrum Emission Mask (SEM) model will be used to study these factors effects beside the interference to noise ratio (I/N ) as a fundamental criterion for coexistence and sharing between systems. The frequency and distance separation and antenna height effects are essential to be investigated to achieve spectrum sharing.

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The coexistence of OFDM-based systems beyond 3G with fixed service microwave systems

Cited by 22 publications

References 0 publications

Coexistence analysis between IMT system and DTV system in the 700MHz band

Coexistence analysis between IMT system and DTV system in the 700MHz band

Interference coordination for LTE-Advanced and FM broadcasting interoperability

Spectrum Sharing Studies of Imt-Advanced and Fwa Services Under Different Clutter Loss and Channel Bandwidths Effects

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