Design and Performance Evaluation of MB-MIMO-UWB for Different Transmission Techniques

摘要

abstract_textpThis work represents a design of multiple input multiple output multi band ultra wide band (MIMO-MB-UWB) system by using four antennas at the transmitter and eight antennas at the receiver with the combination of orthogonal space time block code encoders and minimum mean square (MMSE) equalizes. The proposed system used for a short range wireless communication and is one of the most promising technologies for generating a high data-rate. It will likewise take on a very important role in next generation wireless communication system where everyone will be plugged in at anywhere, anytime, hence use of 4*8 antennas enables to increase capacity and data-speed of the system by four times and also supplies an efficient wireless link as the receiver has multiple choice to commit the best data by comparing the quality of meeting data. The functioning and efficiency of the system are valued along the basis of bit-error-rate (BER, transmitted-received signal, constellation plot and MMSE performance plot for binary phase shift keying, quadrature phase shift keying (QPSK), 16-quadrature amplitude modulation (QAM), 64-QAM, 256-QAM modulation schemes under CM1 line of sight (LOS) channel and CM2 non-line of sight (N-LOS) channel condition of the range between 0 and 4m. Outcomes show that with use of MMSE equalizer, inter symbol interference is reduced, especially for a high order modulation system which further raises the operation of the proposed scheme. On the basis of BER It is also noted, that QPSK is the best modulation scheme for LOS condition and 16-QAM is the best for N-LOS condition. Additionally, proposed work will also be helpful in academics and for the different researchers and technologists who are operating in the UWB system, because a complete illustration of simulation will be exemplified and explained./p/abstract_text