Feature	Benefit
signal gain—Inputs from multiple antennas are combined to optimize available power required to establish given level of coverage.	better range/coverage—Focusing the energy sent out into the cell increases base station range and coverage. Lower power requirements also enable a greater battery life and smaller/lighter handset size.
interference rejection—Antenna pattern can be generated toward cochannel interference sources, improving the signal-to-interference ratio of the received signals.	increased capacity—Precise control of signal nulls quality and mitigation of interference combine to frequency reuse reduce distance (or cluster size), improving capacity. Certain adaptive technologies (such as space division multiple access) support the reuse of frequencies within the same cell.
spatial diversity—Composite information from the array is used to minimize fading and other undesirable effects of multipath propagation.	multipath rejection—can reduce the effective delay spread of the channel, allowing higher bit rates to be supported without the use of an equalizer
power efficiency—combines the inputs to multiple elements to optimize available processing gain in the downlink (toward the user)	reduced expense—Lower amplifier costs, power consumption, and higher reliability will result.

Table 1. Features and Benefits of Smart Antenna Systems