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Open Access Research

Context-aware resource allocation for cellular wireless networks

Magnus Proebster1*, Matthias Kaschub1, Thomas Werthmann1 and Stefan Valentin2

Author Affiliations

1 Institute of Communication Networks and Computer Engineering, Universität Stuttgart, Stuttgart, Germany

2 Bell Labs, Alcatel-Lucent, , Stuttgart, Germany

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EURASIP Journal on Wireless Communications and Networking 2012, 2012:216  doi:10.1186/1687-1499-2012-216

Published: 12 July 2012

Abstract

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 approach. With Context-Aware Resource Allocation, 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 scheduling, at equal capacity and utility. Thus, even a small degree of CI increases the wireless links’ efficiency without sacrificing the users’ QoS.

Keywords:
Radio resource management; Scheduling; Cross-layer design; Cellular wireless networks; Context-aware; Quality of service