if start using the subset of antennas , you are going to reduce the spatial resolution of DOA or AOA. But subset of antennas are used to get better averaging effects to control the amount of noise
By partitioning the antenna in subarrays, you can definitely retrieve the DOA.
Ref: Schmit R., "Multiple emitter location and signal parameter". IEEE vol. AP-34 (276-280), 1986.
Dear Researchers,
Greetings,
I want to ask a simple but quite basic question in antenna selection.
I am confused about the taxonomic standing of the antenna selection techniques in MIMO. I know from the basic theory of MIMO that these systems are of two types. They provide the spatial multiplexing features (sending different bit streams from different antennas) , or spatial diversity features (sending multiple copies of the same signal from different antennas).
Now, I want to know that in which category does the antenna selection falls?
Also, I have some informative knowledge of the space time block/trellis coding techniques used in MIMO. I know their purpose is to improve reliability by sending multiple but encoded copies of the same signal. Hence, they fall in spatial diversity category.
Thanks in anticipation.
Waseem Raza
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