Fading Analysis of Mimo Based Mobile Ad-

MIMO technologies are beneficial for Mobile ad-hoc networks by providing the diversity and capacity advantage as well as spatial degree of freedom in designing MAC protocol. The integration of MIMO technology in the area of mobile ad-hoc network has great attenuation in commercial and military application. Most important event in wireless communication is the advent of MIMO technologies which uses multiple antennas to coherently resolve more information than single antenna [1,2,3]. The use of multiple antennas increases the data rate in wireless network. The use of multiple antennas causes the amplitude and phase fluctuation and time delay in the received signal, which causes fading of the signal [4,5]. Again the nodes are moving randomly that leads to a frequency shift of the arriving signal. We have studied the MIMO mobile ad-hoc network’s received signal assuming the flat Raleigh fading and considering the Doppler shift due to the continuous movement of the mobile nodes. Some parameters will come into consideration when we studied about MIMO Mobile ad-hoc network i.e. Average Fade Duration (AFD), Level Crossing Rate (LCR). In this paper we shall discuss the different fading channels and show some simulated results for Doppler spectrum at variation of Doppler shift (i.e. direction of motion of the antenna) with respect to Power Spectral Density. And some comparison study of AFD and LCR is done with MIMO Mobile ad-hoc network and ordinary ad-hoc network.