mmWave

WNCG Student Receives ECE Research Award at GAIN 2019

The University of Texas Graduate Engineering Council hosted their annual Graduate and Industry Networking event (GAIN) on February 5. WNCG student Nitin Jonathan Myers won the ECE Departmental Research Award for the event’s poster session.

GAIN was conceived as a “broad networking opportunity that allows The Cockrell School of Engineering to showcase its best and brightest graduate students.” Along with a poster session, the event featured talks from industry representatives as well as a networking session that allowed students to connect with over 15 leading companies.

Machine Learning to Improve Success Rates for Handovers from Sub-6 GHz LTE to Millimeter Wave Bands

Transmission over millimeter wave (mmWave) frequency bands is being adopted in fifth generation (5G) wireless communications.  Even though the sub-6 GHz frequency bands continue to dominate deployments due to their better ability to penetrate and provide in-building coverage, the handover between mmWave and sub-6 GHz frequency bands is nonetheless inevitable to support higher data rates.  The cost of a handover is a reduction in data rate, which 5G promises to increase.

Resolution-Adaptive Hybrid MIMO Architectures for mmWave Communication

Moving to a millimeter wave (mmWave) spectrum in range of 30-300 GHz enables the utilization of multi-gigahertz bandwidth and offers an order of magnitude increase in achievable rate. The small wavelength allows a large number of antennas to be packed into transceivers with very small antenna spacing. Leveraging the large antenna arrays, mmWave systems can manipulate directional beamforming to produce high beamforming gain, which helps overcome large free-space pathloss of mmWave signals.

MmWave channel estimation using sub6-GHz channel information

Due to hardware constraints, millimeter wave (mmWave) channel is not directly accessible and hence estimating mmWave channel for beamforming is difficult. Further, sub-6 GHz and mmWave systems are envisioned to work together, so assuming the knowledge of sub-6 GHz channel is reasonable.  Hence, it is worthwhile to investigate how the channel at sub-6 GHz and mmWave relate. This is particularly important for high mobility scenarios like vehicular communication, where frequent beam-training results in significant overhead.
 

Analysis of Interference Cancellation in mmWave Cellular Systems

In this research, WNCG visiting graduate student Amir Jafari, WNCG graduate student Jeonghun Park and WNCG professor Robert Heath address the benefits of interference cancellation in millimeter-wave (mmWave) cellular systems. Considering a multiple antenna communications system with transmitting and receiving antennas, the receiving antennas can either be exploited to decode data streams in order to achieve spatial multiplexing, or alternatively the receiving antennas can be used to cancel the interference.

WNCG Responds to FCC on Future of mmWave

As mobile wireless communications progress, the Federal Communications Commission (FCC) is exploring technologies that could lead to the emergence of a new generation of millimeter wave (mmWave) wireless spectrum by the year 2020. Before mmWave carrier frequencies can be applied to cellular networks, spectrum allocations and regulatory frameworks must be determined. 

Student Tianyang Bai awarded Qualcomm Roberto Padovani Fellowship

In recognition of his outstanding performance as a summer intern, Qualcomm awarded WNCG Ph.D. student Tianyang Bai the Roberto Padovani Fellowship. 

The fellowship was created in 2008 to recognize Qualcomm’s corporate research and development interns who demonstrate superior technical performance during their summer internship. Roberto Padovani was Qualcomm’s chief technology officer for nearly 10 years and was a leading innovator for the company.

Millimeter Wave Vehicular Communication Radar

Surface transportation safety can be enhanced by the use of wireless technologies, mainly automotive radar and vehicle-to-vehicle (V2V) communication. Automotive radar provides a high-resolution low-latency approach for a continuous automatic detection and ranging of both communication-enabled and non-communication-enabled transportation users. V2V systems rely on the collaborative communication between vehicles to achieve a real-time cooperative detection and ranging. They can operate beyond the line-of-sight constraints of radar solutions.

Massive MIMO: At Ultra-High Frequency or Millimeter Wave?

Massive multiple-input multiple-out (MIMO) is a promising technique for 5G cellular networks. Prior work showed that high throughput can be achieved with a large number of base station antennas through simple signal processing in massive MIMO networks.

Millimeter Wave for Electronic Wearable Networks

Wearable communication networks are the next frontier for wireless communications. Wearable networks connect different devices in and around the human body, including low-rate devices like pedometers and high-rate devices like augmented-reality glasses. Such networks might use wireless standards like IEEE 802.11ad, WirelessHD, or even next generation millimeter (mmWave) 5G cellular to support device-to- device communication at Gbps rates.
Subscribe to RSS - mmWave