Browsing by Author "SHIMELIS ABATE BELAY"

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    MASTERS OF SCIENCE IN COMMUNICATION ENGINEERING AND NETWORKING
    (Hawassa Unversity, 2021) SHIMELIS ABATE BELAY
    Currently, number of wireless technologies deployed to connect daily activities of human being in different ways and systems. Among those technology Wireless Local Area Network (WLAN) the one which plays crucial role. Hence, it is delivered by use of 2.4GHz and 5GHz frequencies. Due to the number of users increase the two main problem became challenges which are spectrum scarcity and throughput. To solve the challenge there are several types of research are done and are going to be done related to 60GHz Millimeter Wave Frequency for WALN. In this thesis, coverage and capacity performance comparison of 60 GHz channel capacity over Rican fading channels with 2.4 GHz and 5 GHz for WLAN service to give a better selection for WLAN users in the future. By using with bit error rate (BER) and SNR for small-scale (fast) fading with higher M-ary QAM modulation scheme. As a result, the Rician Channel fading for 60GHz with comparisons of 2.4 and 5 GHz WLAN frequency has high throughputs, which is 60GHz channel capacity is 13.5 times of 5GHz channels, and 54 times channels of 2.4GHz. Therefore, it is more advantageous for high throughput user demands than 2.4 and 5GHz frequencies used for IEEE 802.11’s Standards. 60 GHz distance coverage, relatively time less half coverage of than 2.4GHz frequency and less than by around 7-meter time less than 5GHz frequency coverage. Hence, the shorter the coverage of 60GHz give an advantage to best candidate for frequency re-use to solve spectrum scarcity