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In this work we report experimental tests on the performance of FTTX accesses using the mPlane measurement plane, including lab and field environments and above all we point out the role of such measurement plane in Software Defined Network architectures. For such an aim we show an experimental procedure based on a central unit (orchestrator) that automatically manages GbE links in a regional network...
The various flows in production datacenters usually can be classified into two types: bandwidth-hungry and delay-sensitive. To improve their performance, datacenter networks require effective load balancing and flow control protocols, respectively. However, as the two techniques are typically employed separately in current datacenters, they are unable to optimize the network in a coordinated way....
Radio Frequency IDentification (RFID) plays a vital role in smart computing applications. Due to the limited communication range of individual RFID readers, large RFID systems deployed in real applications usually contain multiple readers. Existing reader scheduling algorithms either disallow adjacent readers to simultaneously work in order to avoid collisions among them, or simply activate all the...
Agricultural productivity has long been a key metric for measuring farming efficiency and it has been proven that agricultural productivity can be increased through smart farming. Recently, Unmanned Aerial Vehicle (UAV) has also been incorporated into smart farming in order to provide additional perspectives, i.e., imagery analysis and agricultural surveillance. These UAVs not only perform their specific...
The router’s buffer accommodates transient packets to guarantee that the network’s links do not become idle. However, buffer overflow causes packet loss, which is a signal of congestion. In content centric networking (CCN), the interest packet, which is used for requesting content, may be dropped due to such congestion. Each interest packet is assigned a specific lifetime, and when the lifetime expires...
In this paper, an efficient routing protocol for patient monitoring system in rural areas was proposed using wireless sensor network (WSN) so that the patients can be treated within less time. In this system, a village with GSM network is considered and the people in that village are continuously monitored using AMON sensor, an advanced medical monitoring and alert system. All the AMON's work in ADHOC...
In recent past, researchers have shown a lot of interest in Under Water Sensor Networks (UWSNs) because of its application in wide range of domains. UWSN, actually a sub body of Wireless Sensor Networks (WSN), facilitate with radio communication with high-precision of information to a sink node from any of the source node. The Role of any-casting is of significant importance in the context of routing...
As cloud based platforms become more popular, it becomes an essential task for the cloud administrator to efficiently manage the costly hardware resources in the cloud environment. Prompt action should be taken whenever hardware resources are faulty, or configured and utilized in a way that causes application performance degradation, hence poor quality of service. In this paper, we propose a semantic...
Network Function Virtualization (NFV) is a new trend in networking, where network functions are moving from custom hardware appliances to software implementations running on virtual machines (VMs) hosted on commodity hardware. While the benefits of NFV such as cost reduction and increased agility are well understood, doubts still exist on whether a software implementation can match up to the high...
For overcoming performance decline caused by current long fat networks, many high performance TCPs have been proposed, such as Compound TCP and CUBIC TCP. These proposals have raised a new issue, which is fairness among these modern TCPs. For this issue, several fairness evaluations and some proposals for improving fairness were published. In our past work, we focused on Controlling Queue Delay (CoDel)...
Monitoring ports, harbors and oceanic territories is gaining huge interest especially to combat military crisis, smuggling and terrorist activities. Underwater Wireless Sensor Network can be a viable solution for tracking objects like trespassing ships approaching a harbor and monitoring the activities on the ocean surfaces. In this paper we have proposed a new paradigm for underwater tracking mechanism.
Today's datacenter is shared among various applications with different QoS requirements, which poses a great challenge to deliver low delay transport with high throughput. Most of works address this challenge by reducing the in-network delay, but assumes a negligible local delay. However, we show that this assumption does not hold for a multi-tenant datacenter that a physical machine is shared by...
The patient monitoring through implant medical devices under medical implant communication service (MICS) band has significantly increased due to growing healthcare expenses, an aging population, and successful deployment of wearable home-based medical monitoring in telemedicine. Recent literature lacks the performance evaluation mechanisms and discussion of MICS band in terms of quality of service...
In this paper, we propose OmniFlow, a novel transport protocol which combines load balancing and flow control at the transport layer to optimize datacenter transfers. OmniFlow outweighs previous solutions in two aspects. Firstly, it can simultaneously and precisely measure the queueing latencies on multiple paths between two hosts. Secondly, OmniFlow adaptively integrates the load balancing and flow...
In the operation of industrial monitoring in distributed manner, new approaches have emerged to achieve the objective of efficient data exchange. Wireless sensor network has up came as an optimal solution to distributed monitoring. In the approach to precise monitoring and remote controlling, new approaches of resource controlling and operational controlling were developed. However, the node level...
Nowadays, monitoring per-flow metrics, such as throughput and delay, in OpenFlow networks represents an important input to implement traffic engineering approaches. Per-flow monitoring mechanisms require to uniquely identify the complete network path followed by all the packets of the corresponding flow. For example, in order to measure path delay, monitoring mechanisms regularly inject probe packets...
This paper presents a secured communication between mobile nodes in military environments such as a battlefield or a hostile region which are likely to suffer from connectivity issues in an infrastructure less environment. Disruption-tolerant network (DTN) technology is an upcoming successful solution that offers the wireless devices carried by soldiers to communicate with each other and access the...
Wireless Sensor Communication Networks have more concern on its routing techniques. Since the WSCNs nodes are battery powered, routing algorithms should assure the concept of energy saving without affecting the other performance metric like Throughput, Delay and Packet delivery ratio etc. The modified AOMDV called as Enhanced Energy Efficient Multipath Routing Protocol ( EEEMRP )is a proposed algorithm...
Nowadays, 10 Gb/s networks are becoming more and more widespread. Consequently, there is an increasing need for testing equipment for those networks, to measure parameters such as throughput, delay, jitter, packet loss rate, etc. Network testing equipment can be either active or passive, depending on whether it injects traffic or simply monitors packets in network links. In this paper we focus on...
A Mobile Ad-hoc Network (MANET) has special characteristics such as dynamic topology, the absence of an administrative point and no fixed infrastructure. These features make it vulnerable to many attacks, such as the Denial of Service (DoS) attack. This type of attack deprives users of access to their legitimate services leading to degradation of the network. This paper posits the Monitor, Detect,...
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