Risultati di ricerca
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G. Nardini, A. Virdis, G. Stea, "Simulating device-to-device communications in OMNeT++ with SimuLTE: scenarios and configurations", OMNeT++ Community Summit 2016, Brno, CZ, September 15-16, 2016
SimuLTE is a tool that enables system-level simulations of LTE/LTE-Advanced networks within OMNeT++. It is designed such that it can be plugged within network elements as an additional Network Interface Card (NIC) to those already provided by the INET...
https://phd.dii.unipi.it/pubblicazioni/item/1089-g-nardini,-a-virdis,-g-stea,-simulating-device-to-device-communications-in-omnet-with-simulte-scenarios-and-configurations-,-omnet-community-summit-2016,-brno,-cz,-september-15-16,-2016.html -
A. Virdis, C. Vallati, G. Nardini, "Automating large-scale simulation and data analysis with OMNeT++: lessons learned and future perspectives", OMNeT++ Community Summit 2016, Brno, CZ, September 15-16, 2016
Simulation is widely adopted in the study of modern computer networks. In this context, OMNeT++ provides a set of very effective tools that spans from the definition of the network, to the automation of simulation execution and quick result...
https://phd.dii.unipi.it/pubblicazioni/item/1088-a-virdis,-c-vallati,-g-nardini,-automating-large-scale-simulation-and-data-analysis-with-omnet-lessons-learned-and-future-perspectives-,-omnet-community-summit-2016,-brno,-cz,-september-15-16,-2016.html -
G. Nardini, G. Stea, A. Virdis, D. Sabella, M. Caretti, "Broadcasting in LTE-Advanced networks using multihop D2D communications", IEEE PIMRC 2016, Valencia, ES, September 5-7, 2016
In an LTE-Advanced network, network-controlled Device-to-Device (D2D) communications can be combined in a multihop fashion to distribute broadcasts over user-defined (and possibly large) areas, with small latencies and occupying few resources. Such a...
https://phd.dii.unipi.it/pubblicazioni/item/1065-g-nardini,-g-stea,-a-virdis,-d-sabella,-m-caretti,-broadcasting-in-lte-advanced-networks-using-multihop-d2d-communications-,-ieee-pimrc-2016,-valencia,-es,-september-5-7,-2016.html -
G. Nardini, A. Virdis, G. Stea, "Modeling X2 backhauling for LTE-Advanced and assessing its effect on CoMP Coordinated Scheduling", IWSLS2 2016, Vienna, July 1st, 2016
Many LTE-Advanced algorithms and protocols rely on node coordination and cooperation to reduce power consumption, increase spectral efficiency and improve cell-edge performance. Functions such as Coordinated Multi Point, Network Assisted Handover, etc.,...
https://phd.dii.unipi.it/pubblicazioni/item/972-g-nardini,-a-virdis,-g-stea,-modeling-x2-backhauling-for-lte-advanced-and-assessing-its-effect-on-comp-coordinated-scheduling-,-iwsls2-2016,-vienna,-july-1st,-2016.html -
A. Virdis, G. Nardini, G. Stea, "Modeling unicast device-to-device communications with SimuLTE", IWSLS2 2016, Vienna, July 1st, 2016
In LTE-Advanced (LTE-A), device-to-device (D2D) transmissions allow two peering User Equipments to communicate directly without using the Evolved Node-B as relay. D2D is regarded as one of the enablers to bring LTE-A in the context of vehicular...
https://phd.dii.unipi.it/pubblicazioni/item/971-a-virdis,-g-nardini,-g-stea,-modeling-unicast-device-to-device-communications-with-simulte-,-iwsls2-2016,-vienna,-july-1st,-2016.html -
N. Iardella, G. Nardini, G. Stea, A. Virdis, F. Mauro, D. Sabella, M. Caretti, G.M. Dell'Aera, "Coordinated scheduling in a Virtual-RAN prototype with OpenAirInterface", EUCNC 2016, Athens, 27-30 June 2016
The virtualized Radio Access Network (V-RAN) is a key technology for 5G networks. In this paper we present a live prototype of Virtual RAN implementing a Coordinated Scheduling algorithm enforced by a centralized coordinator. The 5G proof of concept,...
https://phd.dii.unipi.it/pubblicazioni/item/921-n-iardella,-g-nardini,-g-stea,-a-virdis,-f-mauro,-d-sabella,-m-caretti,-g-m-dell-aera,-coordinated-scheduling-in-a-virtual-ran-prototype-with-openairinterface-,-eucnc-2016,-athens,-27-30-june-2016.html -
G. Nardini, G. Stea, A. Virdis, D. Sabella, M. Caretti, "Fast and agile lossless mode switching for D2D communications in LTE-Advanced networks", IEEE VTC Spring 2016, Nanjing, PRC, 15-18 May 2016
Direct (or D2D) communications allow two UEs to communicate without passing through the eNodeB. However, the two UEs may still need to relay their communication through the eNB from time to time, hence should be able to switch from the direct to the...
https://phd.dii.unipi.it/pubblicazioni/item/918-g-nardini,-g-stea,-a-virdis,-d-sabella,-m-caretti,-fast-and-agile-lossless-mode-switching-for-d2d-communications-in-lte-advanced-networks-,-ieee-vtc-spring-2016,-nanjing,-prc,-15-18-may-2016.html -
G. Nardini, G. Stea, A. Virdis, "Performance evaluation of TCP-based traffic over direct communications in LTE-Advanced", IEEE VTC Spring 2016, Nanjing, PRC, 15-18 May 2016
Direct (or device-to-device, D2D) communications are being investigated in the framework of LTE-Advanced. They allow one-to-one communications between two endpoints, under the control of the eNodeB, which allocates resources for the d2d flow, but does...
https://phd.dii.unipi.it/pubblicazioni/item/917-g-nardini,-g-stea,-a-virdis,-performance-evaluation-of-tcp-based-traffic-over-direct-communications-in-lte-advanced-,-ieee-vtc-spring-2016,-nanjing,-prc,-15-18-may-2016.html -
A. Virdis, G. Stea, G. Nardini, "Simulating LTE/LTE-Advanced Networks with SimuLTE", in: Obaidat, M.S., Kacprzyk, J., Ören, T., Filipe, J., (eds.) "Simulation and Modeling Methodologies, Technologies and Applications", Springer, 2016
In this work we present SimuLTE, an OMNeT++-based simulator for LTE and LTE-Advanced networks. Following well-established OMNeT++ programming practices, SimuLTE exhibits a fully modular structure, which makes it easy to be extended, verified, and...
https://phd.dii.unipi.it/pubblicazioni/item/854-a-virdis,-g-stea,-g-nardini,-simulating-lte-lte-advanced-networks-with-simulte-,-in-obaidat,-m-s-,-kacprzyk,-j-,-ören,-t-,-filipe,-j-,-eds-simulation-and-modeling-methodologies,-technologies-and-applications-,-springer,-2016.html -
G. Nardini, G. Stea, A. Virdis, D. Sabella, M. Caretti, "Resource allocation for network-controlled device-to-device communications in LTE-Advanced", Springer Wireless Networks, to appear (accepted January 2016)
Network-controlled device-to-device (D2D) communication allows cellular users to communicate directly, i.e., without passing through the eNodeB, while the latter retains control over resource allocation. This allows the same time-frequency resources to...
https://phd.dii.unipi.it/pubblicazioni/item/827-g-nardini,-g-stea,-a-virdis,-d-sabella,-m-caretti,-resource-allocation-for-network-controlled-device-to-device-communications-in-lte-advanced-,-springer-wireless-networks,-to-appear-accepted-january-2016.html -
G. Nardini, G. Stea, A. Virdis, D. Sabella, M. Caretti, "Practical large-scale coordinated scheduling in LTE-Advanced networks", Springer Wireless Networks, January 2016, vol. 22, n. 1, pp. 11-31, DOI: 10.1007/s11276-015-0948-6 (accepted March 2015)
In LTE-Advanced, the same spectrum can be re-used in neighboring cells, hence coordinated scheduling is employed to improve the overall network performance (cell throughput, fairness, and energy efficiency) by reducing inter-cell interference. In this...
https://phd.dii.unipi.it/pubblicazioni/item/428-g-nardini,-g-stea,-a-virdis,-d-sabella,-m-caretti,-practical-large-scale-coordinated-scheduling-in-lte-advanced-networks-,-springer-wireless-networks,-to-appear.html -
A. Virdis, G. Stea, G. Nardini, “SimuLTE: A Modular System-level Simulator for LTE/LTE-A Networks based on OMNeT++”, SimulTech 2014, Vienna, AT, August 28-30, 2014
This paper describes SimuLTE, an open-source system-level simulator for LTE and LTE-Advanced (LTE-A) networks. SimuLTE is based on OMNeT++, a well-known, widely-used modular simulation framework, which offers a high degree of experiment support. As...
https://phd.dii.unipi.it/pubblicazioni/item/227-a-virdis,-g-stea,-g-nardini,-“simulte-a-modular-system-level-simulator-for-lte-lte-a-networks-based-on-omnet-”,-simultech-2014,-vienna,-at,-august-28-30,-2014.html -
G. Nardini, G. Stea, A. Virdis, M. Caretti, D. Sabella, “Improving network performance via optimization-based centralized coordination of LTE-A cells”, CLEEN 2014, Istanbul, TK, April 6, 2014
This paper shows how to improve the overall network performance (cell throughput, fairness, and energy efficiency) via centralized coordination of LTE-A cells. We first present optimization models for small-scale coordination (i.e., three cells). Then,...
https://phd.dii.unipi.it/pubblicazioni/item/226-g-nardini,-g-stea,-a-virdis,-m-caretti,-d-sabella,-“improving-network-performance-via-optimization-based-centralized-coordination-of-lte-a-cells”,-cleen-2014,-istanbul,-tk,-april-6,-2014.html -
Nardini, G., Stea, G., Virdis, A., Sabella, D., Caretti, M., “Effective dynamic coordinated scheduling in LTE- Advanced networks”, Proc. of EuCNC 2014, Bologna, Italy, June 23-26, 2014
This paper proposes a dynamic coordinated scheduling strategy among LTE-Advanced cells. We argue that in current networks dynamic coordinated scheduling is practically feasible only at small scales (e.g., three cells)., and we discuss how to optimally...
https://phd.dii.unipi.it/pubblicazioni/item/215-nardini,-g-,-stea,-g-,-virdis,-a-,-sabella,-d-,-caretti,-m-,-“effective-dynamic-coordinated-scheduling-in-lte-advanced-networks”,-proc-of-eucnc-2014,-bologna,-italy,-june-23-26,-2014.html
