Next generation wireless networks utilizing millimeter waves (mm-waves) achieve extremely high data rates using narrow signal beams. Featuring a high directivity and being susceptible to blockage by objects, mm-waves allow for concurrent transmissions over spatially separated links. This spatial reuse becomes challenging with consumer-grade antennas due to significant sidelobes in their radiation patterns. Even spatially separated communications might cause significant interference when located in the sidelobes of each other.
To investigate this issue, we propose mmTrace, our framework to predict mm-wave propagation by means of raytracing. Among other network aspects, we analyse the threat of interference on mm-wave systems and therewith highlight the limits of spatial reuse. Our results indicate that physical layer aspects, which come from imprecise directionality, need to be considered for efficient and reliable mm-wave protocol design.
In this talk, I give an introduction to mm-wave communication according to IEEE 802.11ad/ay. With mmTrace, I present our approach on modeling mm-wave indoor propagation for interference analysis. I present insights in specific network scenarios and outline open problems in mm-wave research.
Daniel Steinmetzer received his master degree in information system technology from TU Darmstadt in 2014. Since July 2014 he is working at Secure Mobile Networking Lab (TU Darmstadt) as Ph.D. candidate and focuses his research on wireless physical layer security and millimeter-wave communication systems.