Dr Bogdan Roman

Picture I have dual affiliation, being a Research Associate at the Applied Maths department working primarily on compressed sensing, and a visiting Research Fellow at the Computer Lab, Digital Technology Group, working on wireless comms. I am also the Director of Studies for Computer Science at Homerton College.

Visit my homepage at the Maths department

Research and Teaching

I co-lecture a Part III course on Sampling and Compressed Sensing at DAMTP, give a Part II lecture on wireless comms at the CL, and supervise a number of undergraduate courses.

My research interests at the Computer Lab lie in the design, implementation and modelling of cross-layer wireless schemes (with an emphasis on scalability, efficiency and harsh conditions) and Software Defined Radio (SDR) implementations. I am also interested in the usage of multi-carrier systems and OFDM techniques for higher level applications (e.g. contention, cognitive radio, white-spaces), and analysis of randomized algorithms.

Software Defined Radio (SDR)

The system I designed and implemented during my PhD (called Multi-Carrier Burst Contention), has received a Microsoft Research Software Radio Academic Program Award to advance the research into multi-carrier techniques. We now have several powerful SDR equipment available for research but also suitable for Part II and MPhil projects.

Contact me if you are interested in SDR applications or projects (Part II and Mphil welcome).

Probability Questions and Puzzles

Parts of my spare time were/are filled with creating and collecting probability theory questions and puzzles, some which you can find below. Although short, some of these are non-trivial. I hope that trained probabilists still find some of them challenging.

Probability Questions (PDF)

I also use them in my undergraduate teaching and am always interested in alternative solutions and extensions (or new questions) so if you have any then I'd love to hear from you.


During my PhD I was sponsored by Girton College, the Cambridge European Trust, the Cambridge Overseas Trust and also by Felix Telecom Romania.

I'm also the author and webmaster of the DTG website.

Contact details

Email:   abr28@cam.ac.uk
Tel:     +44 1223 (7)63791
Office:  SN17
Address: Computer Laboratory, University of Cambridge
         15 JJ Thomson Ave, Cambridge CB3 0FD, UK