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Application of cooperative sensing in radar-communications coexistence

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4 Author(s)
Wang, L.S. ; Centre for Commun. Res., Univ. of Bristol, Bristol ; McGeehan, J.P. ; Williams, C. ; Doufexi, A.

The feasibility of coexistence between radar and a communication system is investigated under log-normal shadowing conditions. A key element that enables coexistence is a sensing receiver to detect the presence of a radar system and prevent transmissions when interference may occur. Initial studies where each communication terminal does its own sensing and decision-making shows that while bandsharing is possible, under stringent interference requirements, communication efficiency can be limited. Analytical and simulation results illustrate that cooperative sensing leads to an improved detection range, higher detection probability and lower complexity of sensing nodes than that of single terminal sensing. It is concluded that cooperative spectrum sensing is able to enhance detection capabilities to maximise radar spectrum-sharing usage efficiency.

Published in:

Communications, IET  (Volume:2 ,  Issue: 6 )