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2 votes
Accepted

Combining Analog Video Signals for Diversity Receiver System

(or maximal gain combining if a simple circuit exists to variably attenuator each signal). Nobody does maximum gain combining in analog circuitry (at least as far as I know). That would require ...
Marcus Müller's user avatar
2 votes
Accepted

Maximum Ratio Combining vs. Selection Combining

Very quick explanation: SC just throws away $N-1$ of $N$ observations, whereas MRC combines all $N$. MRC does to a signal in spatial domain what a matched filter does in frequency domain: it ...
Marcus Müller's user avatar
1 vote

What is the difference between array gain and diversity gain?

As is often the case, the definitions of these concepts are not perfectly agreed on by everyone. This is what I think is the most popular interpretation: Diversity gain is the gain in SNR at the ...
MBaz's user avatar
  • 15.3k
1 vote

which type of diversity is used by rake receivers?

Personally, I think it's more natural to describe the RAKE receiver as a time-diversity system. However, in a wireless system multipath is only resolvable if the bandwidth is large, so RAKE receivers ...
MBaz's user avatar
  • 15.3k
1 vote

Should we use Maximal ratio combining and an equalizer together?

The MRC technique is applied in the case of flat fading channels. In mathematical terms, this means that the channel coefficient between the Tx antenna and each Rx antenna is a single complex number $...
QMC's user avatar
  • 784

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