DFS: Dynamic Frequency Sharing - mac80211 patch, 2010-2013 (EU IST FP7 ULOOP Project)

Dynamic Frequency Sharing



Luis Amaral Lopes, Hassan Osman (UniK), Rute C. Sofia, Huseyin Haci and huiling zhu, Dynamic Spectrum Management (DFS) - mac80211 patch, SITI-SW-13-03, 2013


DFS is a software-based mechanism that targets short-range wireless networks where transmission is based on a shared medium (e.g. broadcast) and which rely on OFDM for data transmission. DFS is applicable downstream, from the antenna to the station, and relies on techniques both from OSI Layer 1 and 2 to assist data transmission to multiple stations within a time-frame that based only in OFDM could only serve the purpose of serving a single station.




DFS has been developed as a mac80211 patch for UNIX environments and has been tested successfully on Ubuntu (stations) as well as on OpenWRT (controller).



The Team


DFS has been conceived, validated, and implemented by COPELABS (Rute Sofia and Luis LOpes) and University of Kent (Huseyin Haci, Hassan Osman, Huiling Zhu) in the context of the European project ULOOP - User-centric Wireless Local Loop.




DFS Demo (2012)




Questions and additional information: please e-mail SITI


Copyright @SITI/COPELABS, Universidade Lusófona. All Rights Reserved



Our up-to-date list of events. Interdisciplinary meetings, workshops, and much more!

Organized events

Latest Research

logo nemps smallNEMPS PhD programme - New Media and Pervasive Systems, University Lusófona. Check out the application deadlines and scholarship opportunities!

Current Sponsors


        ulht   logo eu

Past Sponsors