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WWIC
2005
Springer

Mitigating Interference Between IEEE 802.16 Systems Operating in License-Exempt Mode

14 years 5 months ago
Mitigating Interference Between IEEE 802.16 Systems Operating in License-Exempt Mode
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.
Omar Ashagi, Seán Murphy, Liam Murphy
Added 28 Jun 2010
Updated 28 Jun 2010
Type Conference
Year 2005
Where WWIC
Authors Omar Ashagi, Seán Murphy, Liam Murphy
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