5G Wireless Communications

Type: Master's Assignment
Contacts: Wim KorevaarAndré Kokkeler 
Student: Mark de Ruiter 
Location: CAES, University of Twente


The radio-spectrum has been untouched for centuries, but in recent years wireless devices have been competing more and more for some scarce bandwidth. As bandwidth auctions are billion-dollar affaires, wireless devices popup everywhere and forecasts state an 18-fold increase of data usage in just five years, an efficient usage of the radio- spectrum is of ever increasing importance.

Explosive growth in number of wireless (IP6) devices and explosive growth in data traffic per month [Cisco VNI, 2012]Figure 1: Explosive growth in number of wireless (IP6) devices and in data traffic per month [Cisco VNI, 2012]

 

For over a century communication systems have mainly relied on sinusoidal signals. We propose another set of basis signals for wireless communications; Hermite functions. The ultimate goal is to allow more users to communicate simultaneously given a certain amount of bandwidth, time and energy. In previous work the theoretical foundation has been laid and now the game is on to show the world a functioning Hermite based communication system and to investigate how these signals actually perform. The student is armored with underlying theory regarding Hermite functions and equipped with the GNU radio platform. This platform is open-source and decently documented. Many other scholars and engineers have been using this platform to ‘quickly’ prototype their software-defined-radio’s.

We won’t set limits to the student’s curiosity and we regard a master assignment as your ultimate chance to explore new fields. Despite, we have some basic questions which may function as a starting point. For example, we are curious how does the an Hermite multicarrier system compare to a conventional OFDM system (e.g. applied in 802.11 WLAN)? What are your observations, can you compare the performance and explain the differences?

More information? Contact Wim Korevaar or André Kokkeler.

Example wireless transceiver system for testing the performance of sinusoidal signals vs. Hermite signal

Figure 2: Example wireless transceiver system for testing the performance of sinusoidal signals vs. Hermite signal

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