Lookback scheduling for long-term Quality-of-Service over multiple cells | IEEE Conference Publication | IEEE Xplore

Lookback scheduling for long-term Quality-of-Service over multiple cells


Abstract:

In current cellular networks, schedulers allocate wireless channel resources to users based on short-term moving averages of the channel gain and of the queuing state. Us...Show More

Abstract:

In current cellular networks, schedulers allocate wireless channel resources to users based on short-term moving averages of the channel gain and of the queuing state. Using only such short-term information, schedulers ignore the user's service history in previous cells and, thus, cannot meet long-term Quality of Service (QoS) guarantees when users traverse cells with varying load and capacity. We propose a new scheduling framework, which extends conventional short-term scheduling with long-term QoS information from previously traversed cells. We demonstrate our scheme for relevant channel-aware as well as for channel and queue-aware schedulers. Our simulation results show high gains in long-term QoS while the average throughput of the network increases. Therefore, the proposed scheduling approach improves subscriber satisfaction while increasing operational efficiency.
Date of Conference: 01-05 July 2013
Date Added to IEEE Xplore: 22 August 2013
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Conference Location: Sardinia, Italy

References

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