EVEREST testbed: QoS management evaluation in B3G networks

Ferrús, R.; Gelonch, A.; Casadevall, F.; Reves, X.; Nafisi, N.

doi:10.1109/tridnt.2006.1649123

Cited by 6 publications

(5 citation statements)

References 5 publications

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“…In fact, analytical studies usually require many simplifications and approximations that limit the accuracy and reliability of the obtained results. Therefore complex simulation tools are preferred EVEREST [1] (considers a GERAN-UMTS-WLAN scenario) and WHYNET [2] (wireless hybrid network testbed to assess cross-layer interactions in heterogeneous wireless systems, focusing on sensor and mesh networks), are good examples where complex simulations frameworks have been developed.…”

Section: Introductionmentioning

confidence: 99%

Co-Simulation of ns-2 and SPHERE for Media Independent Handovers

Kuipers¹,

Sargento²,

Monserat³

et al. 2012

Proceedings of the Fifth International Conference on Simulation Tools and Techniques

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This paper describes a co-simulation implementation of ns-2 and SPHERE. These simulators complement each other by providing support for a group of layers of the OSI communication model. In particular, the SPHERE simulator is responsible for the simulation of lower layers (link layer and physical layer), while the ns-2 simulator provides support for the simulation of the upper layers (network layer, transport layer and application layer). Each simulator has an action plane within the process of cosimulation. The aim of the co-simulation is to simulate heterogeneous handovers between LTE, WiMAX, WiFi and/or UMTS. In order to allow for media independent handovers, our implementation is based on an extension of the base IEEE 802.21 standard provided by NIST. This extension consists on the support of IEEE 802.21 entities on the network side, and on the integration between the IEEE 802.21 framework and the radio access technologies. In the case of LTE integration, this one needed to be provided through the SPHERE framework. From the same simulator, new events such as "link down" and "link up" needed to be implemented. The paper shows how the IEEE 802.21 was successfully used as bases for the integration of the ns-2 and SPHERE simulators. As expected when using cosimulation for different domains, e.g., network and physical layer, the simulation-time is largely dependent on the lowest layer in the stack. This layer usually has the smallest time-resolution and hence will require more processing resources per simulated second.

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Section: Introductionmentioning

confidence: 99%

Co-Simulation of ns-2 and SPHERE for Media Independent Handovers

Kuipers¹,

Sargento²,

Monserat³

et al. 2012

Proceedings of the Fifth International Conference on Simulation Tools and Techniques

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“…The main objective of the AROMA testbed is to provide a framework where the benefits of the developed RRM/CRRM algorithms and the proposed QoS management techniques can be demonstrated. The presented testbed is an evolved version of the tool developed in the context of the EVEREST project [2], allowing the real-time emulation of an all-IP heterogeneous wireless access network that includes the UMTS Terrestrial Radio Access Network (UTRAN), GSM/EDGE Radio Access Network (GERAN), and Wireless Local Area Network (WLAN) as well as the corresponding common CN based on DiffServ technology [3] and Multi-Protocol Label Switching (MPLS) [4]. The evaluation platform emulates, in real-time, the conditions that the behaviour of the all-IP heterogeneous network, including the effect of other users, produces on the user under test (UUT) when making use of real multimedia IP-based applications such as videoconference, streaming services, or web browsing.…”

Section: Introductionmentioning

confidence: 99%

The real-time AROMA testbed for all-IP heterogeneous wireless access networks

Umbert¹,

López-Benítez²,

Alvarez³

et al. 2008

Proceedings of the 4th International ICST Conference on Testbeds and Research Infrastructures for the Development of Networks A

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This paper describes the real-time testbed that has been developed in the framework of the European AROMA project. The objective of the AROMA project is to devise and assess a set of specific resource management strategies and algorithms for both the access and core network parts of an all-IP heterogeneous wireless access network that guarantee the end-to-edge quality of service. The complexity of the interaction between Beyond 3G systems and user applications, while dealing with the quality of service concept, motivates the development of this kind of emulation platforms, where algorithms and applications can be tested in realistic conditions that could not be achieved by means of offline simulations.

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“…Important European projects, such as EVEREST, have also conducted advanced research work on heterogeneous wireless systems and CRRM techniques (EVEREST considered a GERAN-UMTS-WLAN scenario). This project has developed an interesting real-time emulator to demonstrate potential benefits of CRRM mechanisms [5]. This approach differs from the considered in this project where interest is place on system performance of CRRM techniques.…”

Section: Introductionmentioning

confidence: 99%

SPHERE - A Simulation Platform for Heterogeneous Wireless Systems

Gozálvez

Martín‐Sacristán

Lucas-Estañ

et al. 2007

2007 3rd International Conference on Testbeds and Research Infrastructure for the Development of Networks and Communities

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This paper presents SPHERE, a Simulation Platform for HEterogeneous wiREless systems, and describes its motivation, methodology and implementation approach. This advanced system level simulation platform emulates simultaneously the transmission of GPRS, EDGE Multi-slot, HSDPA and WLAN at the packet level, which allows conducting novel investigations on common radio resource management for beyond 3G systems or on the optimization of radio resource management techniques. This paper presents the simulation platform, validates it and introduces its research potential.

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EVEREST testbed: QoS management evaluation in B3G networks

Cited by 6 publications

References 5 publications

Co-Simulation of ns-2 and SPHERE for Media Independent Handovers

Co-Simulation of ns-2 and SPHERE for Media Independent Handovers

The real-time AROMA testbed for all-IP heterogeneous wireless access networks

SPHERE - A Simulation Platform for Heterogeneous Wireless Systems

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