Beampattern Shaping for Coexistence of Cognitive MIMO Radar and MIMO Communications
Ehsan Raei, Mohammad Alaee-Kerahroodi, Bhavani Shankar Mysore
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11 Jun 2020
This paper focuses on designing a set of transmit sequences for coexisting cognitive Multiple-Input Multiple-Output (MIMO) radar and MIMO communications (MRMC) systems. The aim is to shape the transmit beampattern to minimize the
spatial Integrated Side-lobe Level (ISL) while having a good
response on a desired direction in cognitive paradigm. The
resulting non-convex, multi-variable optimization problem for
the sequence design is addressed using the proposed Coordinate
Descent (CD) framework under constant modulus and discrete
phase constraints. The CD method has the capability of directly
designing M-ary Phase Shift Keying (MPSK), which is important
in practical applications. Numerical results indicate the superior
performance of the proposed method over solutions based on
Semi-definite Relaxation (SDR).
spatial Integrated Side-lobe Level (ISL) while having a good
response on a desired direction in cognitive paradigm. The
resulting non-convex, multi-variable optimization problem for
the sequence design is addressed using the proposed Coordinate
Descent (CD) framework under constant modulus and discrete
phase constraints. The CD method has the capability of directly
designing M-ary Phase Shift Keying (MPSK), which is important
in practical applications. Numerical results indicate the superior
performance of the proposed method over solutions based on
Semi-definite Relaxation (SDR).
