Mobility

Scheduler-Dependent Inter-Cell Interference and Its Impact on LTE Uplink Performance at Flow Level

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Executive Summary

The Long Term Evolution (LTE) cellular technology is expected 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 allocation of resources to active flows in both the frequency and time dimension. 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 behavior. For this the authors use a hybrid analytical/simulation approach which enables fast evaluation of flow-level performance measures.

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