Michael J. Marcus’s research while affiliated with Virginia Tech and other places

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Publications (3)

5G/Weather Satellite 24 GHz Spectrum Disagreement: Anatomy of a Spectrum Policy Issue
  • Article

August 2019

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4 Reads

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11 Citations

IEEE Wireless Communications

Michael J. Marcus

Discusses spectrum policy issues that impact 5G mobile communications. The issue that stimulated all this activity is the creation of one of several new cellular bands for fifth generation (5G). The band under consideration near 24 GHz is close to a band that is used by passive satellite sensors to detect water vapor, and there are concerns that out-of-band-emissions from 5G base stations and/or mobile units might in aggregation degrade the performance of the passive satellite sensor and thus hinder weather forecasting.

The Growing Visual Impact of Wireless Antennas in the Urban Landscape: Strategies for Coexistence

February 2018

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95 Reads

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2 Citations

IEEE Wireless Communications

Michael J. Marcus

A few decades ago, antennas were almost unnoticed in the urban and suburban landscape, except for home television receive antennas. At that time, such areas had a few AM, FM, and television broadcast antennas that were sometimes collocated (although less so in the United States) and served wide areas. The low-capacity land mobile radio systems that existed then also used antennas sited on relatively few high towers or building sites, covering large areas but with little total capacity compared to today’s cellular systems.

Impacts of Spectrum Policy on Microwave Businesses [MicroBusiness]

June 2017

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11 Reads

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2 Citations

IEEE Microwave Magazine

Michael J. Marcus

In the universe of electrotechnical technologies of interest to the various divisions of the IEEE, radio technology is covered by more governmental regulation than almost all the others. This governmental regulation was initiated in an era when the maximum usable frequencies were much lower than today, antennas had little directionality, and most radio communication was expected to be for ships at sea. These early, underlying viewpoints still linger to some extent in national and international radio regulation, even though many new issues have arisen and the frequencies are now very different. For example, the 2019 World Radio Conference of the International Telecommunications Union (ITU) will consider, for the first time, communications in frequencies up to 450 GHz.

Citations (3)

... GHz band (i.e. 23.8 GHz band), where Earth exploration-satellite service (EESS) systems employ passive sensing radiometers to measure water vapour and predict weather phenomena [1]. Major concerns have been raised by weather scientists regarding this coexistence case [2]- [4], sounding the alarm that the EESS passive systems would suffer from strong out-of-band interference from 5G mm-wave systems operating in the adjacent band, i.e. the 3GPP n258 band [5], which would severely degrade weather forecasting. ...

Reference:

Will Emerging Millimeter-Wave Cellular Networks Cause Harmful Interference to Weather Satellites?
5G/Weather Satellite 24 GHz Spectrum Disagreement: Anatomy of a Spectrum Policy Issue
  • Citing Article

  • August 2019

IEEE Wireless Communications

Michael J. Marcus

... To comply with requirements of Enhanced Mobile Broadband (eMBB), Ultra Reliable Low Latency Communications (URLLC) and Massive Machine Type Communications (mMTC) (5G use cases [1]), and to cope with the associated growth of users and devices, the reduction of the coverage area (cell size) and the implementation of pico-cells is a trend in 5G [3]. However, the major issue associated with the reduction of covering areas is the consequent increase of cell number (to cover the same area) and thus, the excessive physical deployment of base station (or access point) antennas [3], causing a huge visual impact [4] particularly in dense urban locations. This leads to a high demand for hidden/concealed antennas with enclosures that allow for the reduction of the visual impact of such massive antenna deployment, e.g., antennas embedded in lump poles, fake trees or masked in building facades. ...

Reference:

Metamaterial-Inspired Flat Beamsteering Antenna for 5G Base Stations at 3.6 GHz
The Growing Visual Impact of Wireless Antennas in the Urban Landscape: Strategies for Coexistence
  • Citing Article

  • February 2018

IEEE Wireless Communications

Michael J. Marcus

... b) is a graph of the size and performance of the communication network implemented under the two optimization algorithms and maximized profits. Under the same maximum profit value, the network performance requirement of the Pareto scheme is about 7/15 of that of the synergistic scheme, but the Pareto fluctuation peak and fluctuation range are obviously larger, and the advantages and disadvantages are prominent[22]. ...

Reference:

Upgrading of IOT Big Data Governance Scheme in Microenterprise Governance
Impacts of Spectrum Policy on Microwave Businesses [MicroBusiness]
  • Citing Article

  • June 2017

IEEE Microwave Magazine

Michael J. Marcus