Occurrences of traffic congestions within the urban traffic network are increasing in a rapid rate due to the rising traffic demands of the outnumbered vehicles on road. The effectiveness of management from traffic signal timing planner is the key solution to solve the traffic congestions, but unfortunately the current traffic light signal system is not fully optimized based on the dynamic traf...

Accurate traffic characterization by packet source is needed to predict network behavior and to properly allocate network resources to achieve a desired Quality of Service for all network users. As networks have become faster, the processing load required for complete packet sampling has also grown. In some cases, for example Gigabit Ethernet, the network can deliver packets faster than a netwo...

Middleboxes are commonly deployed to implement policies (e.g., shaping, transcoding, etc.) governing traffic traversing ISPs. While middleboxes may be used for network management to limit the impact of bandwidth-intensive applications, they may also be applied opaquely to limit access to (or degrade) services that compete with those offered by the network provider. Without regulation or account...

We present a brief summary of current approaches and challenges in the network traffic management area. In this contribution, we well cover the most recent experiments on the network traffic and behavior of applications under various network conditions. Quality of the users’ experience is the most important factor being considered in this group of experiments.

In this paper a fuzzy autoregressive (AR) model described in [1] is used to model and predict highspeed network traffic. This model approximates a complex nonlinear time-variant process by combining linear local autoregressive processes using a fuzzy clustering algorithm. We propose a method to estimate the traffic effective bandwidth at regular intervals, assuming the network traffic can be de...

Vehicular Ad hoc Network (VANET) is a wireless network that is formed on the fly between a collection of cars connected by wireless links. VANET has gained a great amount of attention during recent years and is used for a large number of safety (accident warning, weather notification) and non-safety (multimedia, gaming) applications. One of the most promising areas where VANET can be proved to ...

Several techniques have been developed to meet the demand for faster and more efficient access to the Internet. Different applications have different networking requirements. For example, realtime interactive voice requires a low latency network path, but does not require high bandwidth. QoS refers to the ability of a network to provide improved service to selected network traffic over various ...

This thesis investigates monitoring and fault management of next generation networks, in particular in environments where the network nodes within an Autonomous System (AS) are centrally controlled and managed. Existing works on network monitoring and fault management are developed in an isolated and extremely complex manner, where the management protocols, such as SNMP, IPFIX and PSAMP, are se...

For network users and service providers it is important to validate the compliance of network services to the guarantees given in Service Level Agreements (SLAs). This is particularly challenging in inter-domain environments. In this paper, we propose a novel solution for inter-domain SLA validation, based on programmable traffic processing devices that are attached to routers and located in se...