1,721,015 research outputs found
Urban mobility services based on user virtualization and social IoT
Full text linkSmart cities are characterized by smart heterogeneous devices that can interact and cooperate with each other by exchanging regularly low amounts of data in the context of IoT. Lately, there has been an increasing interest in enhancing the IoT paradigm to support exchange of multimedia data. This paper focuses on the concept of Urban Mobility Services and in particular on proposing a solution to enable best QoS and load balance in a 5G network context. The paper introduces a novel algorithm for MobilIty Services uSer vIrtualizatiON (MISSION). MISSION employs cloud computing and broadcast of multimedia content in order to reduce the network load, the number of interactions, and user device energy consumption. It also relies on rating of network reputation in the 5G heterogeneous network environment and performing network selection in the quest to maximize QoS parameters. The performance of the proposed solution is compared against that of a TraffictYpe-based DifferEntiated Reputation (TYDER) algorithm. This performance was evaluated in terms of QoS parameters such as delay, latency, packet loss and prediction error. The results show how MISSION outperforms TYDER in urban mobility scenario
Design and Development of Radio Systems of Monitoring and Emergency
No full textTo design an infrastructure for migrating the Sardinian
regional radio network for health emergency service from
analog to digital to meet the coverage requirement
QoS Management in Multiservice Packet Networks
No full textNowadays, the convergence of voice and
data communications over a single network
infrastructure is the most appealing objective for the
network operators. This requires appropriate
network control tools that allow guaranteeing
different QoS levels for each provided service. To
this aim there has been considerable activities within
international organizations for standardization
bringing to different possible solutions. Among these
the ATM is the most consolidated offering the
capability of integrating multiple services onto a
common backbone network.
Whatever the adopted transport solution, in
multiservice network the monitoring of the system in
terms of performance and resource allocation is
essential for the provisioning of the contracted QoS
level. This article discusses this issue and presents a
methodology for QoS management describing the
key indicators used for performance monitoring, the
procedure to collect the data from the network and
the use of a simulation tool to support network
design and troubleshooting. The validation of the
procedure is made on a practical case study executed
on the Ericsson Engine solution for ATM
multiservice network
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