Abstract: Wireless communication is one of the most demanding areas of the communication. It is the transfer of the user information between two points that are not physically connected. Quality of this transmission depends upon the number of errors at the receiver. There must be minimum number of errors. These errors are caused by interference between transmitted data. Multiple Input Multiple Output Orthogonal Frequency Division Multiplexing (MIMO OFDM) systems increase capacity of link to a great extent. Vertical Bell Labs Layered Space Time (VBLAST) associated with MIMO OFDM system increases the performance of system in terms of Bit error Rate (BER). It also reduces overall computational complexity at the receiver. Minimum Mean Square Error (MMSE) equalizer with VBLAST at the receiver increases performance of the system.
In this paper we present a review on performance of Vertical Bell Labs Layered Space Time architecture for different single antenna and multiple antenna Orthogonal Frequency Division Multiplexing systems. We will study which antenna configuration provides minimum Bit Error Rate (BER).
Keywords: MIMO, OFDM, Equalizer, VBLAST, MMSE, BER, ISI, Fading.
Title: A Review on the Performance of MIMO OFDM Systems with VBLAST Technique
Author: Rupali Shrivastava, Mr.Virendra Verma
International Journal of Engineering Research and Reviews
ISSN 2348-697X (Online)
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