Accountable resource allocation in broadband wireless networks

Authors:
Ravi Kokku;Rajesh Mahindra;Sampath Rangarajan
Affiliations:
NEC Laboratories America, Inc., Princeton, NJ, USA;NEC Laboratories America, Inc., Princeton, NJ, USA;NEC Laboratories America, Inc., Princeton, NJ, USA
Venue:
Proceedings of the fifth ACM international workshop on Mobility in the evolving internet architecture
Year:
2010

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Abstract

Varying channel quality between a user and a base station in cellular and broadband wireless access networks leads to varying channel resource usage per Kbps user throughput. In this paper, we present the position that channel variations that are induced by user activity should be explicitly separated from those induced by network deployment and other factors; the variations should be treated differently during resource allocation by MAC schedulers to be accountable to both users and network operators. For instance, while variations induced by user activity generally warrants proportional or slot-based fairness across users, network-induced variations warrant throughput-based fairness. To enable such customization of fairness metrics on different groups of flows, we propose ARA, a novel accountable resource allocation framework that builds on wireless network virtualization technology. We demonstrate the efficacy of ARA through prototype evaluation on a WiMAX testbed, and present preliminary measurements on categorizing the variations into user-induced and network-induced variations.