Designing Sequences for the Coexistence of Radar With Extended Target and Communication Energy Harvesting.

This paper proposes a spectrum coexistence scheme for sequence design of a multi-user communication system and a MIMO radar with extended target. The relevant figure of merits are the weighted average radar signal-to-interference-plus noise ratio (SINR) across the set of the target impulse response (TIR) to ensure the robustness about the target aspect angle (TAA) uncertainty and the weighted average harvested energy on the communication side. Under the spectrum coexistence scenarios, the transmit signals of radar and communication system are jointly design under the radar similarity, communication spectral, and transmitters power constraints. To tackle the nonconvex design, a sequential iterative optimization framework is derived by a developed alternating iterative procedure that combines the double design Minorization-Maximization and alternating direction method of multipliers (DMM-ADMM) with closed form solutions. Finally, numerical results demonstrate the advantages of the proposed technique.