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New Course Development for 5G Wireless Communications - Challenges and Opportunities during Covid Pandemic

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Conference

2021 ASEE St. Lawrence Section Conference

Location

Virtual

Publication Date

April 17, 2021

Start Date

April 17, 2021

End Date

April 17, 2021

Page Count

4

DOI

10.18260/1-2--38303

Permanent URL

https://peer.asee.org/38303

Download Count

397

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Paper Authors

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Christopher Zarod

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Xingwu Wang Alfred University

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Abstract

At the beginning of 2020, we intended to develop new tech elective courses in the areas of information-communication technologies (ICTs). Such courses should benefit both MSEE and BS REE (Renewable Energy Engineering) programs. When the Covid pandemic occurred in March, we modified our plans for actions. First action was to examine the inherent correlations between mobile ICTs and renewables, and second action was to use MATLAB for simulations. In this paper, we’ll describe the lessons learned in the second endeavor, along with the software applications. For example, 5G connectivity introduces enhanced mobile broadband (eMBB) supporting high data rates and low latency, allowing large data flow instantaneously. Massive machine type communication (mMTC) supports a large number of connected devices including IoTs. Ultra-reliable and low latency communication (URLLC) provide reliability and latency characteristics for emerging wireless communication needs. Typical and special MATLAB codes will be provided to illustrate initial planning steps to design 5G network on a campus. These codes will include the downlink and the uplink functionality, in which uplink (downlink) refers to the transmission from the ground side to cell tower (from tower to ground). The 5G code will operate at FR2 frequencies with a TDD duplex mode so that the uplink and the downlink will share the same transmission frequency without spectrum-wasteful guard bands. Both will operate with a 200 MHz channel bandwidth, using 60 kHz and 120 kHz subcarrier spacing for the bandwidth parts (BWP). A large channel bandwidth will enable a large number of resource blocks for carriers, thus allowing more allocation space. Due to the concept of BWP adaptation, connectivity for less intensive devices is not disallowed. When a small bandwidth is required or should be used for power saving purposes, UE schematics can be realized to low bandwidth operations. BWP are preconfigured with a maximum of 4 different operating bandwidths in which the UE can be instructed to switch in between. These MATLAB codes can be operable with “soft” spectrum analysis functionality to analyze simulated interference with additive white gaussian noise (AWGN), which is a basic noise model used in information theory to mimic effects of many random processes occurring naturally. AWGN will be applied to each BWP and comparisons will be drawn between the noise floor and comprehensible signal using an appropriate filter. Lessons learned and experiences gained will be useful for ultimate goals in 5G applications on our campus and beyond.

Zarod, C., & Wang, X. (2021, April), New Course Development for 5G Wireless Communications - Challenges and Opportunities during Covid Pandemic Paper presented at 2021 ASEE St. Lawrence Section Conference, Virtual. 10.18260/1-2--38303

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