1 research outputs found
Capacity Analysis for Joint Radar-Communication Capable Coherent MIMO Radars
Recently, huge attention is attracted to the concept of integrating
communication and radar missions within the same platform. Joint
radar-communications (JRC) system gives an important opportunity to reduce
spectrum usage and product cost while doing concurrent operation, as target
sensing via radar processing and establishing communication links. A
JRC-capable coherent MIMO radar system have been proposed recently in the
literature. Several methods are introduced to reach dual goal as a notable null
level towards the direction of interest of the radar and MIMO radar waveform
orthogonality. Due to the limitations originated form the JRC operation,
communication channel may encounter unwanted amplitude variations. This
unwanted modulation normally affects the communication performance by its
nature, due to the fades on radiated signal amplitude towards the direction of
communication. However, the effect of this unintentional modulation on
communication channel is yet to be investigated. In this paper, the
communication channel for JRC capable phase-coded coherent MIMO radars is
analyzed and investigated under additive white Gaussian noise and
Rayleigh/Rician fading conditions. Communication capacity is evaluated for each
channel condition. The results reveal that, using the single-side limited null
direction fixed waveform generation method displays the best capacity
performance under all channel conditions.Comment: 17 page