Network topology

1.1 Introduction This chapter will briefly discuss the background of Software Defined Networking (SDN) and its use in Wireless Sensor Networks (WSN). It will also state the Problem Definition, the Aims & Objectives of this project, and the Methodology used to achieve those objectives. In the end, it will present an overview of the dissertation’s layout. 1.2 Background The Internet has made an enormous impact on the world of communications. It has interconnected billions of networking devices…

very low it is preferred in most of the devices available in the market. • The simplicity and ease of operation is one major advantage. Anyone can figure out to make to set up a connection and sync two devices with ease. • Chances of other wireless network interference is very low because low powered signals are used. 9 DISADVANTAGES OF…

OMIS 660 Business Computing Environment and Network Lab - 1 REPORT TCP: Transmission Control Protocol SUMMARY: The idea of TCP congestion control is for each sender to determine the available capacity in the network so that it knows how many packets can be safely transmitted. The congestion window is a state variable for each connection which is used by the sender to limit how much data a sender can transmit into the network before receiving an acknowledgement. This report…

protocols involving live network tests, hardware emulation, test-beds and mathematical models. Software simulation, since, is usually a time effective and cost efficient method. Researchers around the globe are utilizing software simulation tools because it offers a controlled atmosphere within which any network model performance can be measured easily and efficiently. Nowadays, the popularity of the available network simulators and specifically that of Ad Hoc networks varies from one…

1. Goal The main purpose of this lab is to introduce us to the RLES vCloud system, begin setting up a network with a router VM and a main Redhat VM, and configure some baseline features for the continuation of our work in future labs. This included configuring DNS forwarding and NTP on the PFSense router VM, and configuring a wiki on the redhat VM alongside monitoring software such as Zabbix or Opsview. When configuring the router, all was fairly straightforward and without any major…

We will begin by defining what a network is. To define a computer network it is a collection of interconnected devices capable of sharing meaningful information and resources with one another. On this network computers can communicate with other computers on the network. Computers can be very powerful when they 're connected to one another in a data network that allows them to share data even it will allows the computer to be connected to the outside so that they will be able to share data…

IPsec is often installed on today's IPv4 networks to protect communication over VPN networks. It is used to access VPN, as well as between VPNs. IPv6 transition mechanisms can use this kind of infrastructure to achieve a certain level of protection, even in the absence of IPv6 IPsec. Remote IPv4 hosts access private networks by establishing encrypted VPN access to a gateway device set up for this purpose. If the same host is capable of IPv6, it can break through an IPv6 tunnel over this…

Harald Haas introduced Light Fidelity (Li-Fi) which resolves the issue of overuse of radio frequency in Wi-Fi [1] [7]. The objective of VLC is to increase data rates in wireless communication and to have better performance of networks especially for indoor networks using light emitting diode (LED) lamps [2]. LED, has many benefits such as low power consumption, small size, long life, low cost, low heat radiation. So they are used in numerous applications, like traffic lights,…

SENSOR NETWORK (WSN): Wi-Fi sensor networks (WSN), once in a while called wireless tool and actuator networks (WSAN), are spatially disbursed autonomous sensors to monitor bodily or environmental situations, which include temperature, sound, pressure, and so forth. and to cooperatively pass their expertise through the network to a major location. The extra brand new networks are bi-directional, additionally sanctioning control of device activity. The improvement of wireless sensor…

characteristics include: 1. Each vehicle is turned into a router or wireless node with the capability to connect and become a part of a network in the range of approximately 100-300m. 2. Network topology changes as the vehicles fall out of range or new vehicles join the network, thus making the network density vary according to traffic density. For example, network density can be very high when in a traffic jam, or very low in suburban traffic. 3. Mobility in a VANET environment is predictable…