systems operating as secondary users in white space frequency bands. In particular, our
focus is coexistence mechanisms that can be provided by IEEE 802.19. 1 coexistence
system. IEEE 802.19. 1 standard is at the early stage of its development. At this stage it is
very important to consider different design directions and focus areas. This paper presents
results of performance evaluation of the IEEE 802.19. 1 coexistence system based on …