SplitAP: Leveraging Wireless Network Virtualization for Flexible Sharing of WLANs

Providing air-time guarantees across a group of clients forms a fundamental building block in sharing an access point (AP) across different virtual network providers. Though this problem has a relatively simple solution for downlink group scheduling through traffic engineering at the AP, solving this problem for uplink (UL) traffic presents a challenge for fair sharing of wireless hotspots. Among other issues, the mechanism for uplink traffic control has to scale across a large user base, and provide flexible operation irrespective of the client channel conditions and network loads. In this study, we propose the SplitAP architecture that address the problem of sharing uplink airtime across groups of users by extending the idea of network virtualization. Our architecture allows us to deploy different algorithms for enforcing UL airtime fairness across client groups. In this study, we will highlight the design features of the SplitAP architecture, and present results from evaluation on a...

• Type: Journal
• Year: 2010
• Where: GLOBECOM
• Authors: Gautam D. Bhanage, Dipti Vete, Ivan Seskar, Dipankar Raychaudhuri
• Keywords: Communications, GLOBECOM 2010, SplitAP Architecture, UL Airtime Fairness, Uplink