These "virtual MIMO" techniques are used in wireless sensor networks to make communication more efficient, and they work just like real MIMO. A lot of people now use wireless sensor networks that run on battery power. Because they need to be energy efficient and last a long time, this means they must be good at these things as a way to solve this, a new architectural method called Virtual MIMO was made. To make an energy efficient network, this method is very important. It helps you figure out how and where it should be used. You can use MIMO technology in a single antenna system by taking advantage of the cooperative concept and its energy-saving method with virtual MIMO. This survey paper mostly talks about how to do this. To make a wireless sensor network last longer with the least amount of energy, this shows how Virtual MIMO techniques can be used to do that A wireless communication system with multiple in and multiple out antennas, as well as different S-parameters, are all simulated. Return Loss in dB is also shown for different frequencies, like S21, S22, S11, and S12. These frequencies have different Return Loss in dB. A lot of people now use wireless sensor networks that run on battery power. Because they need to be energy efficient and last a long time, this means they must be good at these things as a way to solve this, a new architectural method called Virtual MIMO was made. To make an energy efficient network, this method is very important. It helps you figure out how and where it should be used.