Scheduler Dependent Modeling of Inter-Cell Interference in UMTS EUL

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Executive Summary

In this paper, the authors analyze the performance of the UMTS Enhanced UpLink (EUL) in a network scenario, under various packet scheduling schemes. Besides the impact of the intrinsic differences of the scheduling schemes on EUL performance (which they studied in a previous paper for a single cell scenario), they are particularly interested in how the different scheduling schemes influence EUL performance through their impact on the characteristics of the inter-cell interference. For their analysis they use a hybrid analytical/simulation approach, originally developed for the single cell situation, and extend it to their multi cell scenario. They show that the mutual influence between neighbouring cells due to inter-cell interference is largely determined by only one or two power iteration steps, which considerably speeds up computations.

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