Welcome to 5G Optimized Physical Layer


Driven by the increasing demand for higher data rates, a new fifth generation (5G) cellular system is under design. 5G system will cater to a wide range of diverse design requirements through a novel radio access technology (RAT), support for extended mobile broadband (eMBB), ultra reliable and low latency communication (URLLC) and massive machine type communication (mMTC) service, and operation in new millimeter wave frequency band.

Alongside the conventional centimeter wave spectrum, researchers are exploring the millimeter wave frequency bands for 5G cellular systems. Millimeter wave bands offer huge free spectrum and allow the implementation of massive antenna arrays due to the small wavelength. There are fundamental differences between mmWave communications and existing communication systems. Many open research issues need to be addressed to fully exploit the potential of mmWave communications.

To address the 5G design challenges, a basic understanding of key components of 5G systems is required. This course consists of four different aspects of 5G communication systems: cm-wave/mmWave radio propagation, 5G radio interface considerations, antenna system designs, and circuits and networks, as detailed below:

1. Channel propagation aspect: Accurate characterization of their spatial multipath channel at millimeter wave bands has gained significant interest both in industry and academia, as it is important for system design and performance analysis of future millimeter wave communication systems. This course will briefly discuss basic principle of channel modeling and channel estimation. Further, the students will have hands-on experience of how to perform and measure cm/mm-wave propagation channels. Another aspect related to channel propagation is over-the-air (OTA) testing of 5G devices, e.g. massive MIMO base stations, and mm-wave phased array systems at base station/mobile terminals. This course will also cover basic principle of MIMO OTA testing, and research challenges of OTA testing for 5G systems.

2. 5G radio interface considerations: This part will cover topics such as waveforms, frame structure, access techniques for URLLC and mMTC services, cell less design, multi-node multi-cell connectivity.

3. Antenna aspect: One of the key enabling techniques in 5G systems is the use of millimeter wave bands along with phased array antennas at both the mobile device and base station. This course will address the millimeter-wave antennas and their interactions with human tissues for next generation communication systems. The topics include:

  • Summarize the commonly used methods on 5G phased array antenna designs.
  • Introduce challenges in centimeter and millimeter wave phased array for 5G mobile terminals.
  • Some examples on solving these challenges in mobile terminals.
  • Interactions with millimeter-wave antenna and human tissues (body loss and SAR): material properties, measurements and some results.

4. Circuits and networks: With high carrier frequency and wide bandwidth, there are several technical challenges in the design of circuit components and antennas for mmWave communications, e.g. high transmit power, severe nonlinear distortion of power amplifiers, phase noise and IQ imbalance.

Channel propagation aspect:
Basic BSc/MSc course in electromagnetics, antenna and propagation

5G radio interface aspect:
Students should have the basic knowledge of wireless communication system.

Antenna aspect:
Students should have the basic knowledge about antennas before taking this course.

Circuits and networks:
Basic BSc/MSc course in RF, circuits

Learning objectives:
Channel propagation aspect:

  1. basic understanding of channel modeling, and channel estimation
  2. basic analysis of measured channel characteristics
  3. overview of over the air testing for MIMO device testing
  4. basic understanding of channel emulation
    5G aspect:

1. Basic understanding of 5G design requirements

2. 5G waveform design requirements and potential solutions

3. 5G radio access technology solutions

4. Trends beyond 5G

Antenna aspect:

1. Command commonly used methods on 5G phased array antenna designs

2. Familiar with challenges in centimeter and millimeter wave phased array for 5G mobile

3. Learn some solutions to the challenges in mobile terminals.

4. Understand interactions between millimeter-wave antenna and human tissues (body
    loss and SAR): material properties, measurements. Remember the conclusions.

Circuits and networks:

1. basic understanding of RF circuits and networks

Organizer: Assistant Professor Wei Fan, e-mail: wfa@es.aau.dk Post Doc Nurul Huda Mahmmod, e-mail: nhm@es.aau.dk

Lecturers: Associate Professor Gilberto Berardinelli gb@es.aau.dk, Assistant Professor Wei Fan wfa@es.aau.dk, Assistant Professor Shuai Zhang sz@es.aau.dk, Assistant Professor Ming Shen mish@es.aau.dk and Post Doc Nurul Huda Mahmmod nhm@es.aau.dk


Time: 6, 7, 8, 9 and 10 November 2017


Zip code:


Number of seats:


Important information concerning PhD courses:
We have over some time experienced problems with no-show for both project and general courses. It has now reached a point where we are forced to take action. Therefore, the Doctoral School has decided to introduce a no-show fee of DKK 5,000 for each course where the student does not show up. Cancellations are accepted no later than 2 weeks before start of the course. Registered illness is of course an acceptable reason for not showing up on those days. Furthermore, all courses open for registration approximately three months before start. This can hopefully also provide new students a chance to register for courses during the year. We look forward to your registrations.