Communication Systems

Communication Systems (KS)

The Division of Communication Systems is headed by professor Erik G. Larsson and conducts research and education in communications engineering, wireless communications and statistical signal processing.

Photo credit: Karl Öfverström
The principal focus is on enabling technologies for 5G wireless networks and beyond, with Massive MIMO as the most outstanding, scalable technology component.  Specific questions of concern include the design of coding, signal processing and resource allocation algorithms, as well as implementation aspects.

The division also leads research in positioning technology, with focus on cooperative positioning algorithms and localization in difficult radio environments. 

Faculty & Staff at Communication Systems

You find contact details and more information about each employee further down.

Contact

Alumni, guests and continuing collaborators

Research

Resource Allocation and energy efficiency

Resource Allocation and Energy Efficiency in Wireless Networks

The demand for wireless data traffic increases exponentially. To keep up with the growth, an ambitious but necessary goal for the next generation wireless networks is to deliver 1000x higher data rates per km2 than today.
MIMO 5G

Massive MIMO - The scalable 5G technology

Massive MIMO is a leading 5G technology candidate, that aims at delivering uniformly good service to wireless terminals in high-mobility environments.
cooperative localization

Cooperative localization

A number of applications in wireless sensor networks (WSN) require sensor nodes to obtain their absolute or relative positions.
Energy-Efficient Digital Signal Processing

Energy-Efficient Digital Signal Processing

Energy efficiency in signal processing hardware is vital for several reasons, in particular to reduce the environmental impact, to increase stand-by times, to make batteries smaller and lighter, and to simplify the cooling of circuits.
Distributed jamming of Massive MIMO

Physical layer security in massive MIMO

The inherent openness of the wireless channel makes wireless communication between two legitimate parties susceptible to attacks from a third party, the adversary. These attacks can be divided into two classes: eavesdropping and jamming.
radiobasstation

Popular science description of the activities at Communication Systems

Today's society relies more and more on fast and secure communications infrastructure. This is a trend that will continue. Information technology, and especially perhaps mobile communications, has changed people's lives.
Hardware techniques for Cognitive Radio

Hardware techniques for Cognitive Radio

The Cognitive Radio (CR) is a technology which aims at improving spectrum efficiency in wireless communications by opportunistic use of the available spectrum resources.

News

From left Carl Ingemarsson, Li Li, Gang Liu, Zheng Ma, Erik G Larsson, Oscar Gustafsson, Trinh van Chien, Erik Bertilsson and Amin Ghazanfari.

Swedish-Chinese collaboration in 5G technology

People say that 5G will be upon us in 2020, offering 1000 times more traffic at rates of hundreds of Mbit/s. There are many research projects in 5G under way, but probably only one of them is a Swedish-Chinese collaboration.
Trinh Van Chien, Giovanni Intredonato och Amin Ghazanfari,

Smart communication making the world smaller

The PhD students working in the 5GWireless programme come from all corners of the world. They are attracted by the opportunity of contributing to a generation change in the mobile traffic network from 4G to 5G, with thousands of times more traffic.

Helene Hellmark Knutsson, Camilla Georgsson till vänster om ministern

SEK 3 billion extra to research

Benefit to society, increased gender equality and initiatives linked to societal challenges are in focus in the research bill presented by the Swedish government. The bill provides extra money to LiU for research into 5G and digitalisation.
Dagens basstationer

LiU research for super-fast 5G

Telecoms companies around the world are gearing up for the next generation of mobile telecommunications; so is Ericsson, who recently launched their “5G for Sweden” project. A lot of research and technological development remains to be done, and at LiU there is leading-edge competence.
organisk elektronik

Thumbs up for LiU research

The government’s investment in strategic areas of research has been evaluated by an international panel of experts. LiU’s three initiatives all get the thumbs up, and it has been proposed that materials research receive increased funding.

Faculty and staff

ollab13

Olle Abrahamsson

Research Assistant

emabe81

Ema Becirovic

Research Assistant

emibj29

Emil Björnson

Senior Lecturer

prac57

Prabhu Chandhar

Postdoc

zhech93

Zheng Chen

Postdoc

heich62

Hei Victor Cheng

PhD student

News in brief

2017-04-24
 
Prof. Erik G. Larsson and his former student Hien Ngo share the 2017 IEEE ComSoc Leonard G. Abraham prize (together with H.Suraweera and M. Matthaiou).
2017-02-10

We welcome Dr. Kamil Senel, new postdoc in Communication Systems.
2017-01-26
 
We welcome Dr. Zheng Chen, new postdoc in Communication Systems. 

About the department