Abstract
A rudimentary approach to mitigate interference issues in license-exempt 802.16 systems is presented. This approach operates by permitting each Base Station (BS), and associated Subscriber Stations (SSs) to remain inactive for a specified fraction of the time. Other systems can then transmit with a reduced likelihood of interference. A simulator was developed to determine how this system performs. The results show that the throughput of the system is very sensitive to the fraction of time each BS is active; the system throughput is maximised when each BS is active less than 40% of the time for the scenarios studied. The results demonstrate a discrepancy between uplink and downlink throughput which can be attributed to the greater amount of overheads in the uplink. Finally, the results show that broadcast information being transmitted periodically at full power has a significant detrimental impact on the system.
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© 2005 Springer-Verlag Berlin Heidelberg
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Ashagi, O., Murphy, S., Murphy, L. (2005). Mitigating Interference Between IEEE 802.16 Systems Operating in License-Exempt Mode. In: Braun, T., Carle, G., Koucheryavy, Y., Tsaoussidis, V. (eds) Wired/Wireless Internet Communications. WWIC 2005. Lecture Notes in Computer Science, vol 3510. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11424505_29
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DOI: https://doi.org/10.1007/11424505_29
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-25899-5
Online ISBN: 978-3-540-32104-0
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