An efficient optimization based scheduling mechanism for a reliable mimo ofdm communication system

Abstract

Multiple Input Multiple Output MIMO Orthogonal Frequency Division Multiplexing OFDM is broadly applied in modern communication system The numerous antennas are located at both the transmitter and receiver side which are utilized to improve the bandwidth efficiency system capacity and Quality of Service QoS The wireless networking technology improves the range and capacity of the wireless communication system The MIMO communication includes many advantages such as it activates the physical channel between many transmitter and receiver antennas the multipath provides the spatial diversity for reducing the sensitivity of fading the high spectral efficiency But it includes some disadvantages such as high error rate ineffective assignment increased tower load and interference So as to avoid the above mentioned problems an optimization algorithm for MIMO communication system is developed in this research The first module of this work is multichannel bacterial foraging optimization algorithm which is developed for choosing antenna in transmission area Initially the message is given to the input of the communication system and the symbol mapping is used to cover the message into signals The space time encoding technique is used to encode the signals Here the single signal is classified into multiple signals and it is given to the input of space time pre coder in transmission channel to utilize the multiplexing Depends upon the bandwidth range the Rayleigh channel is selected and these channels are Gaussian distributed and the demultiplexing is applied in the obtained signal Long term evolution technique is used for scheduling the time of channel during the transmission. newline