
196 ◾ Lauren Collins and Scott R. Ellis
station with the same frequency.
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And because the beams are focused, the
radio energy frequency has increased base station range. is is an attri-
bute of SDMA that permits base stations to have larger radio coverage
with less radiated energy. us, the narrow beam width also sanctions
more gain and clarity.
Base stations in legacy cellular network systems radiate radio signals
in all directions within the cell, having no knowledge of the location of
a mobile station. Subsequently, SDMA technology channels radio signals
constructed on the location of the mobile station. Utilizing this method,
SDMA architec ...