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Wireless Sensor Networks (WSN) plays a vital role in the modern communication mechanism. These are more vulnerable to attacks due to their basic limitations such as communication distance, memory, processing, throughput and power. In this paper we analyze communication delay and energy consumption of a WSN. We propose a Novel Dynamic Reconfigurable Network Monitoring Node (DRNMN), which controls the...
Network bandwidth and server capacity are gradually becoming overloaded due to high demand and rapid evolution of high quality multimedia services over the Internet. Internet Protocol Television (IPTV) is among the multimedia services that demand more of network and server resources, especially with the emergence of Mobile IPTV. It is imperative for service providers to maintain good quality management...
With an increasing use of Long-Term Evolution (LTE) in mobile networks, it is necessary to evaluate its performance. In this paper, we evaluate the performance of Long Term Evolution (LTE) for mobile networks under Transmission Control Protocol (TCP) traffic. We evaluate the performance of LTE for TCP traffic for both the directions uplink as well as downlink. During the evaluations, we focus on the...
In the UMTS network, UTRAN, PS core, CS core, and UMTS QoS architecture form a framework for QoS measurements, which have to be performed to ensure that a UMTS subscriber is served properly. The true picture of QoS is perceived by acquisition signaling and user-plane data from the network interfaces, and performing analysis for those. From an operator’s perspective, the QoS consists of several factors,...
Long Term Evolution (LTE) is a broadband wireless technology that promises to high throughput. In order to simultaneously support several mobile users with real time and non-real time applications, the resource management and Quality of Service (QoS) requirements of delay-sensitive traffic should be carefully aware. In this paper, The Delay-Aware with Resource Block Management Scheduling Algorithm...
This article describes the performance evaluation of a new wireless TCP algorithm in real environments, in order to identify the advantages and disadvantages of its operation. We evaluate the proposed wireless TCP algorithm with respect to generic TCP, considering an intrusive technique by using traffic injection. These tests were performed over point-to-point WiFi and WiMAX links in out-door and...
In wireless sensor networks, multi-node cooperative relaying (MR) scheme represents a potential candidate to combat the effects of channel fading by exploiting diversity gain achieved via cooperation among the relays nodes. But, a great many of relaying channels are employed in MR system, which means that the number of required channels, the energy consumption and transmission delay all increase linearly...
Data collection and transmission are the fundamental operations of Wireless Sensor Networks (WSNs). A key challenge in effective data collection and transmission is to schedule and synchronize the activities of the nodes with the global clock. This paper proposes the Bandwidth Efficient Hybrid Synchronization Data Aggregation Algorithm (BESDA) using spanning tree mechanism (SPT). It uses static sink...
This paper deals with quality of service (QoS) for triple play, mainly focused on voice and video. For studying changes in quality parameters at different network utilization, was it necessary to simulate LTE networks. For this purpose, the Matlab was chosen, in which we focused on the throughput. We simulated technology in particular scenarios, we changed the frequency and time division duplex, SNR,...
Usage of wireless networks is rising in popularity. In this setting different kinds of networks for indoor environments, such as Ad-Hoc, IEEE 802.11b (Wi-Fi) and Wireless Distribution System (WDS) has been developed. In this paper, an analysis of Quality of Service (QoS) has been made for each network in order to verify the values of bit rate, delay, jitter and packet loss. For performance comparison...
Many applications of wireless sensor networks (WSNs) need to balance multiple yet often conflicting performance requirements such as high energy efficiency, high throughput, low delay and low loss. Finding appropriate WSN parameter configuration to achieve the best trade-off requires in depth understanding of the joint effect of key parameters residing at different layers on the performance. In this...
Exploiting multi-user diversity (MUD) for multicast consists in choosing the data rate(s) utilized to serve a number of users who have different channel qualities. Some of the proposed multicast schemes aim to maximize the throughput (e.g. EMTH), while others seek to reduce the transmission time (e.g. EMTT). Actually, it is well known that the process of computing the accurate MUD multicast throughput...
In recent years, achieving world-wide multimedia wireless services has received wide-spread attention and is the most desired objective of service providers of telecommunication networks. Thus, a significant amount of research efforts is devoted to broaden the wireless services over the globe. In this context, satellite component plays a pivotal role in extending and enhancing the existing Universal...
Industrial application of wireless sensor networks require timelines in exchanging messages among nodes. IEEE 802.15.4 is a standard to address the need for low-rate low-power low-cost wireless networking. In wired connection, the components such as actuators or sensors provides high performance besides wired links consist of many mechanical problems. Hence to achieve low latency, high performance...
The Quality of Service (QoS) on the traffic environment with high mobility, dynamic topology, and change trajectory is one of the challenges in the use of Vehicular Ad-Hoc Networks (VANET) Routing Protocols. PUMA routing protocol presents multicast work mechanism based on shared mesh topology. It always dynamically adapt to VANET traffic conditions. In this paper, we evaluated the PUMA routing protocol...
Interconnection networks have been emerged as an efficient communication infrastructure to fulfill the heavy communication requirements of several applications. Torus is the most efficient interconnection network for current and future supercomputer systems. The packet delay and throughput are the major performance metrics for evaluating the network topologies in designing a network. This paper, evaluates...
Duty cycling has been widely used in Wireless Sensor Networks (WSNs). While its general impact on the network performance is intuitive and clear, this understanding is far from sufficient for WSN planning, design and optimization, among others. In this paper, a quantitative study on the relationship between duty cycle and end-to-end network performance, in terms of delay and throughput, is presented,...
Virtualization is a technology and a trend most studies and industries are putting their interest on. The capability of virtualization to carry out, perform, and deliver the task which a physical computer/server does is just one of the many benefits it has. A term open source is also buzzing the internet world; platforms OpenNode, Proxmox, and OpenVPN are examples of such. This paper evaluated the...
With the wireless technologies being widely used, it is for sure that all types of wireless networking will become more and more popular now and in the near future. Therefore, measurement-based performance evaluation of different wireless network standards and traffics is becoming very important. In this research paper, the wireless local area network performance differences between IEEE 802.11n and...
Wireless sensor network is a large collection of sensor nodes deployed in a particular area. These sensor nodes sense the area under consideration, and send signals to notify the sink node about changes in the area. Congestion may occur in the network, as signals from various nodes may be sent simultaneously. Each sensor node in the network consists of a buffer which may be used to get better performance...
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