A Framework for MPLS in Transport Networks

In this position paper on reliable networks, we discuss new trends in the design of reliable communication systems. We focus on a wide range of research directions including protection against software failures as well as failures of communication systems equipment. In particular, we outline future research trends in software failure mitigation, reliability of wireless communications, robust optimization and network design, multilevel and multirealm network resilience, multiple criteria routing approaches in multilayer networks, resilience options of the fixed IP backbone network in the interplay with the optical layer survivability, reliability of cloud computing networks, and

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Experimental evaluation of self-organized backpressure routing in a wireless mesh backhaul of small cells

Nunez-Martinez

Baranda

Mangues‐Bafalluy

2015

Ad Hoc Networks

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Small cells (SC) are low-power base stations designed to cope with the anticipated huge traffic growth of mobile communications. These increasing capacity requirements require the corresponding backhaul capacity to transport traffic from/to the core network. Since it is unlikely that fiber reaches every SC, a wireless mesh backhaul amongst SCs is expected to become popular. These low-cost deployments require to balance resource consumption amongst SCs, however, current routing protocols were not designed to fulfill this requirement.To tackle this challenge, we presented and developed with ns-3 a self-organized backpressure routing protocol (BP), designed to make the most out of the backhaul resources. This paper provides the evaluation of BP exploiting built in ns-3 emulation features to allow rapid prototyping under real-world conditions and through controlled ns-3 simulations. Through a novel evaluation methodology based on ns-3 emulation, we evaluate BP in a 12 SC indoor wireless mesh backhaul testbed under different wireless link rates and topologies, showing Packet Delivery Ratio (PDR) gains of up to 50% with respect to shortest path (SP). Through simulations, we show BP scalability properties with both the size of the backhaul and the number of backhaul radios per SC. Results in single-and multi-radio deployments show TCP traffic gains with BP of up to 79% and 95% ✩ Fully documented templates are available in the elsarticle package on CTAN.compared to SP in terms of throughput and latency, respectively. 65 the ns-3 simulator [8] provides emulation capabilities for evaluating network protocols in real testbeds [13]. Figure 2(a) illustrates the main architecture of a node (in this case a SC) running ns-3 emulation. The ns-3 system allows executing ns-3 IP stacks over real physical devices. In particular, the Emu-NetDevice class provides the interface to send/receive packets to/from the real 70 physical device underneath through a raw socket. The EmuNetDevice lying on

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A Framework for MPLS in Transport Networks

Cited by 45 publications

References 17 publications

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Future research directions in design of reliable communication systems

Experimental evaluation of self-organized backpressure routing in a wireless mesh backhaul of small cells

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