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Dimitrova, D.C. and Heijenk, G.J. and van den Berg, J.L. and Litjens, R.
(2008)
Impact of inter-cell interference on flow level performance of scheduling schemes for the UMTS EUL.
In: Proceedings of the 4thIEEE International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob 2008, 12-14 Oct 2008, Avignon, France.
pp. 106-112.
IEEE.
ISBN 978-0-7695-3393-3
Full text available as:
Official URL: http://dx.doi.org/10.1109/WiMob.2008.107  AbstractThe UMTS Enhanced Uplink (EUL) is expected to provide higher capacity, increased data rates, and smaller latency on the communication link from users towards the network. A key mechanism in EUL traf?c handling is the packet scheduler, for which a number of basic schemes can be identi?ed (one-by- one, partial parallel, and full parallel). In this paper we analyze the interaction between the EUL scheduling scheme deployed in the network and the inter-cell interference. On the one hand, different scheduling schemes cause different inter-cell interference patterns on neighbouring cells. On the other hand, the different schemes are affected by inter-cell interference in different ways. The scheduling schemes are evaluated and compared under different approaches for reserving part of the allowed noise rise at the base station for inter-cell interference. For our analysis, we have developed a hybrid analytical/simulation approach allowing for fast evaluation of performance measures such as the mean flow transfer time and fairness expressing how the performance depends on the user’s location. This approach takes into account both the packet-level characteristics and the flow-level dynamics due to the random user behaviour.
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