The Effects of Public Safety Mobile Systems Operations (in TV Channels 63/68) on DTV and NTSC Broadcasting

Prendergast, D.; Guillet, M.; Caron, Bernard; Wu, Yiyan; Wang, Xianbin; Ledoux, B.; Lafleche, Sebastien

doi:10.1109/tbc.2004.841745

Cited by 5 publications

(2 citation statements)

References 2 publications

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“…Ideally, these techniques and procedures would be based upon input from both the academic community and primary rights holders [16]. An investigation studying the operation of public safety transmissions across television spectrum, when both digital and analog television signals were present, has been conducted [17]. Although several insights were obtained regarding the interaction between licensed and unlicensed transmissions, the investigation did not quantify the impact on the video quality of the television signal nor was there an analysis of transmitter nonlinearities.…”

Section: Dynamic Spectrum Access Backgroundmentioning

confidence: 99%

Measurements and Analysis of Secondary User Device Effects on Digital Television Receivers

Newman

DePardo

Wyglinski

et al. 2009

EURASIP J. Adv. Signal Process.

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This article presents results from a study of the potential effects of secondary users operating in unoccupied television spectrum. Television spectrum is known within the wireless communications community as being underutilized, making it a prime candidate for dynamic spectrum access. The proposed use of this open spectrum has prompted questions concerning the quantity of available channel space that could be used without negative impact on consumers who view digital television broadcasts and the viability of secondary use of open channels immediately adjacent to a digital television broadcast channel. In this work, we investigate secondary device operation in the channels directly adjacent to a desired television channel, and the effects upon a selection of consumer digital television (DTV) receivers. Our observations strongly suggest that secondary users could operate "White Space Devices" (WSDs) in unoccupied channel bandwidth directly adjacent to a desired digital television (DTV) channel, with no observable adverse impact upon the reception of the desired channel content.

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Section: Dynamic Spectrum Access Backgroundmentioning

confidence: 99%

Measurements and Analysis of Secondary User Device Effects on Digital Television Receivers

Newman

DePardo

Wyglinski

et al. 2009

EURASIP J. Adv. Signal Process.

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“…In the open literature, the results of measurement studies in [3,4] showed that analog TV is affected by the interference from mobile systems in the band 746-806 MHz. Therefore, such interoperability is a significant issue and its evaluation is definitely required.…”

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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