Publication No 40143


Proebster, M.*; Kaschub, M.*; Werthmann, T.*; Valentin, S.


Context-Aware Resource Allocation for Cellular Wireless Networks


Mobile Communications


Performance Evaluation




Current cellular networks are often overloaded by Smartphone traffic, while the users' Quality of Service (QoS) demands are not met. To cope with this problem, we demonstrate a new Radio Resource Management (RRM) approach. With Context-Aware Resource Allocation (CARA), the base station's scheduler (i) observes Context Information (CI) from the user's environment and (ii) utilizes this knowledge for an efficient throughput-delay tradeoff. After introducing our framework for accessing CI from the handheld's applications and operating system,we use time-utility functions to develop a practical scheduling algorithm. Studying this heuristic under various traffic assumptions shows that our context-aware scheduler can support three times the load of Proportional Fair (PF) scheduling, at equal capacity and utility. Thus, even a small degree of context information increases the wireless links' efficiency without sacrificing the users' QoS.



Reference entry

Proebster, M.; Kaschub, M.; Werthmann, T.; Valentin, S.
Context-Aware Resource Allocation for Cellular Wireless Networks
EURASIP Journal on Wireless Communications and Networking, 2012

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Authors marked with an asterisk (*) were IKR staff members at the time the publication has been written.