Ericsson Kista | Master thesis: Stochastic modelling of non-linear intermodulation interference

Stockholm, SE
den 20 oktober 2021
den 4 november 2021
Övriga jobb
As the tech firm that created the mobile world, and with more than 54,000 patents to our name, we've made it our business to make a mark. When joining our team at Ericsson you are empowered to learn, lead and perform at your best, shaping the future of technology. This is a place where you're welcomed as your own perfectly unique self, and celebrated for the skills, talent, and perspective you bring to the team. Are you in?

Come, and be where it begins.

Our Exciting Opportunity

Communication over noisy channels often require costly and complex filtering methods to function correctly. Design of such methods depend on accurate noise models of the (non-stationary) noise sources to maintain appropriate cost-performance tradeoff. This is particularly important with strongly non-linear interference such as intermodulation that otherwise can be costly to filter.

This thesis will investigate and design stochastic models for intermodulation affected (MIMO) communication systems under varying assumptions of source type and excitation with emphasis given to interpretable and verifiable models.

The thesis project is hosted by Product Development Unit Radio in Kista and is part of a team developing digital signal processing algorithms for future radio products.

Project goal

The students will study relevant literature, conduct theoretical work and develop training framework.

The thesis will consider the following activities:
  • Survey literature on appropriate (as per above) stochastic modelling frameworks.
  • Implement methods from survey and evaluate on a set of given datasets, from various intermodulation sources and signal power, to obtain a set of stochastic models.
  • Characterize and compare the non-stationary stochastic processes associated to above stochastic models.
  • If time permit, form recommendation for design of filtering methods for above intermodulation sources.


  • Enrolled as Master's student in mathematics/statistics (optimization, random processes, algorithms, machine learning, programming).
  • Excellent computer and programming skills, e.g. MATLAB, C++, python etc.
  • Must have knowledge of signal processing techniques.


Please compile your Cover Letter, CV and Transcript of Records into one PDF file and submit with your application.

The process is ongoing, so make sure to apply as soon as possible!

Start date: January/February 2022

Location: Stockholm, Sweden.

You will report to the Product Development Leader

Recruiter: Emelie Nygård

Kindly note that we cannot process applications sent via email.

What's in it for you?

Here at Ericsson, our culture is built on over a century of courageous decisions. With us, you will no longer be dreaming of what the future holds - you will be redefining it. You won't develop for the status quo, but will build what replaces it. Joining us is a way to move your career in any direction you want; with hundreds of career opportunities in locations all over the world, in a place where co-creation and collaboration are embedded into the walls. You will find yourself in a speak-up environment where empathy and humanness serve as cornerstones for how we work, and where work-life balance is a priority. Welcome to an inclusive, global company where your opportunity to make an impact is endless.

What happens once you apply?

To prepare yourself for next steps, please explore here:

Do you believe that an organization fostering an environment of cooperation and collaboration to execute with speed creates better business value? Do you value a culture of humanness, where fact based decisions are important and our people are encouraged to speak up? Do you believe that diverse, inclusive teams drive performance and innovation? At Ericsson, we do.

We provide equal employment opportunities without regard to race, color, gender, sexual orientation, transgender status, gender identity and/or expression, marital status, pregnancy, parental status, religion, political opinion, nationality, ethnic background, social origin, social status, indigenous status, disability, age, union membership or employee representation and any other characteristic protected by local law or Ericsson's Code of Business Ethics.

Primary country and city: Sweden (SE) || || Stockholm || [[mfield2]]

Req ID: 619947

Liknande jobb

Liknande jobb