Tag Archive: 'opnet lab manual'

Visualization of large wireless network behavior using random matrix theory

Recent works on the universality of Empirical Spectral Density (E.S.D) of Random Matrices have provided a framework to study the asymptotic behavior of random network data. In this paper, the behavior of a wireless campus network with low received base-station transmit power is investigated. Mobile users are organized into 10 clusters of 25 mobile users […]

Energy efficient contention window adaptation algorithm for IEEE 802.11 WLAN

This paper introduces a new contention window (CW) adaptation algorithm to reduce the collision level in an IEEE802.11 based network with the main objective of maximizing energy efficiency while maintaining required Quality of Service (QoS) performance. The main concept of the proposed algorithm is to dynamically adjust the contention window size according to the network […]

Processor-Network Speed Scaling for Energy–Delay Tradeoff in Smartphone Applications

Many smartphone applications, e.g., file backup, are intrinsically delay-tolerant so that data processing and transfer can be delayed to reduce smartphone battery usage. In the literature, these energy–delay tradeoff issues have been addressed independently in the forms of Dynamic Voltage and Frequency Scaling (DVFS) problems and network selection problems when smartphones have multiple wireless interfaces. In this paper, we […]

A home cloud-based home network auto-configuration using SDN

In recent years, the prevalence of network devices such as smartphones, smart appliances, and various sensors has increased. As a result, interest in and demand for home networks has steadily increased. So, auto-configuration problems in home networks are very important and must be addressed, because some household members will not be familiar with the Information Technology (IT) devices […]

Improving spam detection in Online Social Networks

Online Social Networks (OSNs) are deemed to be the most sought-after societal tool used by the masses world over to communicate and transmit information. Our dependence on these platforms for seeking opinions, news, updates, etc. is increasing. While it is true that OSNs have become a new medium for dissemination of information, at the same […]

APIs for QoS configuration in Software Defined Networks

The OpenFlow (OF) protocol is widely used in Software Defined Networking (SDN) to realize the communication between the controller and forwarding devices. OF allows great flexibility in managing traffic flows. However, OF alone is not enough to build more complex SDN services that require complete control and management of the data plane (e.g. configurations of ports, queues, etc.).The current […]

IASS: An intelligence access selection scheme for heterogeneous networks

In heterogeneous network environment, it is important to choose an appropriate access network for a Multimode Mobile Terminal (MMT). Currently, there are some methods proposed to make network access selection decision. However, those methods didn’t consider some dynamic attributes and could not offer effective handoff strategies. In this paper, we introduce an Intelligence Access Selection Scheme for Heterogeneous Networks […]

Friendship influence on mobile behavior of location based social network users

In mobile computing research area, it is highly desirable to understand the characteristics of user movement so that the user friendly location aware services could be rendered effectively. Location based social networks (LBSNs) have flourished recently and are of great potential for movement behavior exploration and data-driven application design. While there have been some efforts on user check-in movement […]

Human group sensing and networking: Scenario development and feasibility study

Vital signs obtained from people playing various types of sports can be exploited not only for diagnosing their physical conditions but also for learning the best practice to be followed to enhance their sporting abilities and skills. In this paper, focusing on a framework to collect vital data from a human group consisting of a […]

A design of 10 Gigabit Capable Passive Optical Network(XG-PON1) architecture based on Software Defined Network(SDN)

A SDN-based XG-PON1 Network Architecture is proposed. A XG-PON1 includes many management technologies that is ONU Management, DHCP Server Management, AAA Server Management, OLT Switch Control, PIU(PON Interface Unit) Control, and OMCI. We proposed a SDN-based XG-PON1 Architecture to manage these functions.