WiMAX-VPON: A Framework of Layer-2 VPNs for Next-Generation Access Networks

Abstract

Abstract-This paper proposes a novel framework, WiMAX-VPON, for realizing layer-2 virtual private networks (VPNs) over the integrated IEEE 802.16 Ethernet Passive Optical Network fiber-wireless technology; which has been lately considered as a promising candidate for next-generation backhaul-access networks. With the proposed framework, layer-2 VPNs support a bundle of service requirements to the respective registered wireless/wired users. These requirements are stipulated in the service level agreement (SLA) and should be fulfilled by a suite of effective bandwidth management solutions. For achieving this, we propose a novel VPN-based admission control (AC) and bandwidth allocation scheme that will provide per-stream quality-of-service (QoS) protection and bandwidth guarantee for real-time flows. The bandwidth allocation is performed via a common medium access control (MAC) protocol working in both the optical and wireless domains. An eventdriven simulation model is implemented to study the effectiveness of the proposed framework. PON (EPON); IEEE 802.16 (WiMAX); QoS; virtual private network (VPN). Index Terms-Ethernet

Video Transport Evaluation With H.264 Video Traces

“…Furthermore, the integrated internetworking of different types of networks, e.g., in Fiber-Wireless (FiWi) networks that combine an optical (fiber) access network with a wireless access or local area network poses unique challenges for the efficient transport of encoded video [102]- [107]. Future integrated internetworking efforts will likely expand the reach of FiWi networks to encompass optical networks that span metropolitan areas [108]- [110].…”

Cross-Technology Overlay Control Protocol for Resource Management in Converged Networks

“…In [6], an end-to-end VPN (Virtual Private Network) based call admission control and DBA algorithm is proposed, to support QoS. The use of 802.16 PDUs in the fiber/optical part of the network is suggested, enabling the OLT to support the same flow differentiation as the WiMax network (IntServ).…”

Simulation Tools Enabling Research in Convergence of Fixed and Mobile Networks

“…Finally in [6], the authors proposed a converged architecture based on end-to-end VPN tunnels. The Unified ConnectionOriented integration of EPON and WiMax was chosen in order for the OLT to support flow differentiation as WiMax, thus 802.…”

“…Extending the previous article's proposed architectures, the authors of [6] also listed the up to-date integration techniques and presented a DBA scheme using Layer 2 VPNs to converge both technologies. The integration types of EPON and WiMax could be summarized as: 1) Independent: In this architecture EPON and WiMax are interconnected but they work independently.…”