Evaluation of MIMO for Indoor Channels with Spatial Modulation

Currently Modeling Indoor channel is an active research area and is used in a wide variety of applications such as voice over IP (VoIP), streaming video and music and network attached storage. These applications use MIMO for controlling the IR based system using LED’S and PD’S.In Multiple-Input Multiple-Output (MIMO) systems, a multiple-stream transmission takes place between a base station (BS) and a Mobile Stations (MS). This includes inter-stream interference (IStI). To overcome IStI,a novel technique or system can be proposed . The proposed system is based on E-SDM scheme is used for suppressing IStI. Along with this technique spatial modulation method is used to boost up the spectral efficiency and achieves the multiplexing gain by activating a single transmit antenna in each time slot. In practical scenario, channel will change over time which creates the interference in the MIMO system usually. A new VLSI based Spatial Modulation technique will be proposed. In the new technique, the distance between the transmitter and receiver is measured along with total length and breadth of the room which divide the room into different blocks using Block Diagonalization (BD) scheme which eliminate the inter-user interference and Additive White Gaussian Noise (AWGN). To make efficient time slots, achieve maximum gain and spectral efficiency, Spatial Modulation (SM) transmission scheme is used after multiplexing. To verify the performance of the channel prediction scheme in communication environments a large amount of channel data is measured.Using these data, we examine the channel transition and channeltracking with the prediction method. ABit-Error Rate (BER) performance is measured to evaluate this result and Average Bit Error Probability (ABEP) is also calculated which measures the system configuration and it is compared with the existing technique to confirm its efficiency towards Multi-User MIMO Systemwith Prediction of Time-Varying indoor channel. At the receiver side, receive the encoded data and decode it. Keyword: Multiple-Input Multiple-Output (MIMO), Bit-Error Rate (BER), Average Bit Error Probability (ABEP), Spatial Modulation.