Scheduler-dependent inter-cell interference and its impact on LTE uplink performance at flow level

Dimitrova, D.C. and Heijenk, G. and Berg van den, J.L. and Yankov, S. (2011) Scheduler-dependent inter-cell interference and its impact on LTE uplink performance at flow level. In: 9th IFIP International Conference on Wired/Wireless Internet Communications, WWIC 2011, 15-17 June 2011, Vilanova i la Geltrú, Spain.

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Abstract:	The Long Term Evolution (LTE) cellular technology is ex- pected to extend the capacity and improve the performance of current 3G cellular networks. Among the key mechanisms in LTE responsible for traffic management is the packet scheduler, which handles the al- location of resources to active flows in both the frequency and time di- mension. This paper investigates for various scheduling scheme how they affect the inter-cell interference characteristics and how the interference in turn affects the user’s performance. A special focus in the analysis is on the impact of flow-level dynamics resulting from the random user be- haviour. For this we use a hybrid analytical/simulation approach which enables fast evaluation of flow-level performance measures. Most inter- estingly, our findings show that the scheduling policy significantly affects the inter-cell interference pattern but that the scheduler specific pattern has little impact on the flow-level performance.
Item Type:	Conference or Workshop Item
Copyright:	© 2011 Springer
Faculty:	Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:	Design and Analysis of Communication Systems (DACS)
Link to this item:	http://purl.utwente.nl/publications/77617
Official URL:	http://dx.doi.org/10.1007/978-3-642-21560-5_24
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