Evaluation of IMT-Advanced Scenarios using the open Wireless Network Simulator

Max, Sebastian; Bultmann, Daniel; Jennen, Ralf; Schinnenburg, Marc

doi:10.4108/icst.simutools2010.8681

Cited by 6 publications

(5 citation statements)

References 9 publications

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“…For a system simulator [17] the actual channel condition must be generated frame-by-frame, signaled back from U T to BS and used as CSI for the scheduler. If the signaling round-trip-time is modeled precisely, then the channel must have a correlation in time, otherwise the scheduling decision is based on outdated information.…”

Section: Numerical Resultsmentioning

confidence: 99%

A correlation-based MIMO performance model for the system level analysis on MAC layer

Schoenen

Teijeiro

2010

2010 IEEE International Conference on Communication Systems

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Abstract-IMT-Advanced systems are currently in their evaluation phase. Due to the complexity of all the integrated algorithms and the multidimensional variability of the wireless channels a system evaluation is not easy and only very few large enterprises have the manpower to construct software to simulate all relevant effects. Traditionally the effects of channel and physical layer algorithms have been studied with bit-level algorithms on a single link. So are most of the results for MIMO processing. System level studies -on the other hand -take cellular layouts, multiple cells and users, real traffic and OSI layers 2 and above into account. They are able to deliver spectral efficiency results. There is a huge gap between these approaches. In order for system level models to give results within reasonable time there must be an abstraction of lower layer details. In this paper a simplified MIMO performance model is presented which can calculate the resource capacity in O(M) and has one parameter which allows to adjust the MIMO capability of a link. The model is then applied to the numeric evaluation of LTE in IMT-Advanced scenarios.

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Section: Numerical Resultsmentioning

confidence: 99%

A correlation-based MIMO performance model for the system level analysis on MAC layer

Schoenen

Teijeiro

2010

2010 IEEE International Conference on Communication Systems

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“…First, we may distinguish between simulators, which are implemented as 'modules' of a larger suite, and those, which are specifically designed for LTE-A [5]. Examples for the former include the Riverbed SteelCentral NetModeler (formerly OPNET Modeler Suite) [6], OMNeT++ [7], IT++ [8], ns-2 [9], [10], GNS3 [11], openWNS [12] and Hurricane II [13]. The main drawback of these solutions is their low level of detail, hence leaving most implementation work to the user.…”

Section: A Survey On Existing Simulation Toolsmentioning

confidence: 99%

Runtime Precoding: Enabling Multipoint Transmission in LTE-Advanced System-Level Simulations

Taranetz¹,

Blazek²,

Kropfreiter³

et al. 2015

IEEE Access

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System-level simulations have become an indispensable tool for predicting the behavior of wireless cellular systems. As exact link-level modeling is unfeasible due to its huge complexity, mathematical abstraction is required to obtain equivalent results by less complexity. A particular problem in such approaches is the modeling of multiple coherent transmissions. Those arise in multiple-input-multipleoutput transmissions at every base station but nowadays so-called coordinated multipoint (CoMP) techniques have become very popular, allowing to allocate two or more spatially separated transmission points. Also, multimedia broadcast single frequency networks (MBSFNs) have been introduced recently in long-term evolution (LTE), which enables efficient broadcasting transmission suitable for spreading information that has a high user demand as well as simultaneously sending updates to a large number of devices. This paper introduces the concept of runtime-precoding, which allows to accurately abstract many coherent transmission schemes while keeping additional complexity at a minimum. We explain its implementation and advantages. For validation, we incorporate the runtime-precoding functionality into the Vienna LTE-A downlink systemlevel simulator, which is an open source tool, freely available under an academic noncommercial use license. We measure simulation run times and compare them against the legacy approach as well as link-level simulations. Furthermore, we present multiple application examples in the context of intrasite and intersite CoMP for train communications and MBSFN.INDEX TERMS Link abstraction, link quality model, runtime-precoding, 3GPP, LTE-A, Vienna LTE-A downlink system level simulator, MIESM, Vienna LTE-A downlink link level simulator, LTE transmission modes, coordinated multipoint, multimedia broadcast single frequency networks, high-user mobility.

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“…Undoubtedly there is a huge gap in the theoretic support for all layers in one model. System level analysis therefore is only realistic if a simulation based approach is taken, where all effects and algorithms are implemented in software [1].…”

Section: Introductionmentioning

confidence: 99%

Multihop Wireless Channel Models Suitable for Stochastic Petri Nets and Markov State Analysis

Schoenen

Salem

Sediq

et al. 2011

2011 IEEE 73rd Vehicular Technology Conference (VTC Spring)

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Abstract-In this paper the system analysis of modern wireless systems is simplified by providing simple yet powerful models for the wireless channel in the environment of higher layer abstract system descriptions with generalized stochastic Petri nets (SPN). This modeling approach is capable of deriving performance metrics in terms of packet delays even under heterogeneous, asymmetric, bursty and underutilized traffic conditions, because they are easy to model with SPN. The missing link in wireless systems are suitable channel models, which can now be used as a plug-in submodel inside a larger composite Petri net model. A number of models are proposed, starting from the finitestate Markov channel model approach. Performance results for a multihop relayed transmission under varied traffic load show the utility of this modeling approach.

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Evaluation of IMT-Advanced Scenarios using the open Wireless Network Simulator

Cited by 6 publications

References 9 publications

A correlation-based MIMO performance model for the system level analysis on MAC layer

A correlation-based MIMO performance model for the system level analysis on MAC layer

Runtime Precoding: Enabling Multipoint Transmission in LTE-Advanced System-Level Simulations

Multihop Wireless Channel Models Suitable for Stochastic Petri Nets and Markov State Analysis

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