Increasing the EE-SE Trade-Off in MIMO Rayleigh Fading channel

For high speed wireless communication, data are transmitted with high spectral efficiency, high data rate and reliability. But due to Rayleigh fading, the channels suffer from lot of attenuation resulting in the reduction of Energy Efficiency (EE) and Spectral Efficiency (SE). The proposed system consists of MIMO using Closed Form Approximation (CFA) method. Multiple input Multiple Output (MIMO) systems are form of spatial diversity in which we use multiple antennas at transmitter as well as receiver. In multipath channel, deploying multiple antenna techniques at both transmitter and receiver achieves high data rate without increasing the total transmission power or bandwidth. This technology is used to reduce errors and optimize data rates. MIMO is a great technique to achieve high bandwidth and system performance. Here, energy efficiency, spectral efficiency, MIMO efficiency are the parameters that are compared using simulation. Simulation results show that when energy efficiency increases with increase in spectral efficiency. As a result, the overall efficiency of MIMO system also increases while Trade-off the EE-SE by using Closed Form Approximation (CFA) method and explicit expression method. From this CFA method gives less approximation error. KeywordsEnergy efficiency, spectral efficiency, tradeoff, MIMO, Rayleigh channels.