Radar spectrum opportunities for cognitive communications transmission

In relation to opportunistic access to radar spectrum, the impact of the radar on a communication system is investigated in this paper. This paper illustrates that by exploring the spatial and temporal opportunities in the radar spectrum and therefore improving the tolerance level to radar interference, a substantial increase on the throughput of a communication system is possible. Results are presented regarding the impact of swept radars on a WiMAX system. The results show the impact of SIR (Received WiMAX signal to received radar signal ratio), radar antenna radiation patterns and rotation period estimation on the feasibility of radar spectrum access.