Context-aware resource allocation for cellular wireless networks
1 Institute of Communication Networks and Computer Engineering, Universität Stuttgart, Stuttgart, Germany
2 Bell Labs, Alcatel-Lucent, , Stuttgart, Germany
EURASIP Journal on Wireless Communications and Networking 2012, 2012:216 doi:10.1186/1687-1499-2012-216Published: 12 July 2012
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.