2 research outputs found
Radar In-Band and Out-of-Band Interference into LTE Macro and Small Cell Uplinks in the 3.5 GHz Band
National Telecommunications and Information Administration (NTIA) has
proposed vast exclusions zones between radar and Worldwide Interoperability for
Microwave Access (WiMAX) (WiMAX) systems which are also being considered as
geographic separations between radars and 3.5 GHz Long Term Evolution (LTE)
systems without investigating any changes induced by the distinct nature of LTE
as opposed to WiMAX. This paper performs a detailed system-level analysis of
the interference effects from shipborne radar systems into LTE systems. Even
though the results reveal impacts of radar interference on LTE systems
performance, they provide clear indications of conspicuously narrower exclusion
zones for LTE vis-\`a-vis those for WiMAX and pave the way toward deploying LTE
at 3.5 GHz within the coastline populous areas.Comment: arXiv admin note: substantial text overlap with arXiv:1409.733
Coexistence between Communication and Radar Systems - A Survey
Data traffic demand in cellular networks has been tremendously growing and
has led to creating congested RF environment. Accordingly, innovative
approaches for spectrum sharing have been proposed and implemented to
accommodate several systems within the same frequency band. Spectrum sharing
between radar and communication systems is one of the important research and
development areas. In this paper, we present the fundamental spectrum sharing
concepts and technologies, then we provide an updated and comprehensive survey
of spectrum sharing techniques that have been developed to enable some of the
wireless communication systems to coexist in the same band as radar systems.Comment: Accepted for publication in Radio Science Bulleti