Browsing by Author "Abdulla, Ayad"

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    Master Thesis
    Performence enhancement analysis of modern wireless networks using mimo technique
    (2014) Abdulla, Ayad
    The systems that utilizing multiple transmit and multiple receive antennas are commonly known as Multiple - Input Multiple - Output (MIMO) systems. This wireless networking technology can greatly improves wireless communication system by exploiting the multipath propagation constructively. These paths can be exploited to provide redundancy of transmitted data, thus improving the reliability of transmission (diversity gain) or increasing the number of simultaneou sly transmitted data streams and increasing the capacity of the wireless system (multiplexing gain) and decreasing bit error rate. This thesis introduces a comparative studies that determines the diversity and channel capacity enhancements, resulting from using our proposed MIMO wireless model. The antenna configurations for this model uses new microstrip bandpass filter to prevent the lower image sideband as far as possible for these antennas.These enhancements has been analysed in term of Bit Error Rate (BER) and bit rate of data transmission for the diversity and capacity enhancements, respectively.