Suppose a 3 ×3 MIMO system (three transmitters) achieves a similar performance as a 4 ×2...

Suppose a 3 ×3 MIMO system (three transmitters) achieves a similar performance as a 4 ×2 MIMO system (four transmitters), which system would you choose?

Expert Solution

In case of 3×3 MIMO system, three transmitting antennas and 3 receiving antennas are used. The signal transmitted by the transmitters is equally received by the three receiver antennas. But the quality of received signal may vary from one antenna to other. As the antennas are placed far away from each other, one antenna may receive good quality signal while other may receive signal of reduced bandwidth or quality which can be compensated by other antennas.

In case of 4×2 MIMO, there are 4 transmitters and 2 receiver antennas. The transmitted signal is received by two receivers. In case of variation of signal strength the compensation of signal loss is very less in case of only 2 antennas and 4 transmitters. More over the cost increases as number of antennas increase. Moreover a receiver receiving signal from 4 transmitters includes losses and is slightly complex when compared to other form.

From comparison of the two systems, considering cost and loss compensation, 3×3 is better.

Manojponduru answered 2 years ago

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