Wireless Mesh Network

It uses UDP to send traffic due to its simplicity plus low overhead. In conclusion, this research has established that development of the TCP / IP protocol was a major step in improving communication between systems. It provided many applications which run on the protocol and thus providing many services that were not available before. It is therefore important to make use of these services in order to provide quality communication.

Wired network and wireless protect both has security, But in general wireless network is less secure than wired networks. For proper security AP (access point) and its antenna should be right position. Also add a wireless access point or use a wireless router we can connect to network wirelessly. AS we using more and more of devices (smart phones, tablet and computers) rely on wireless networking, we have to improve our network security too. Wired ones are practically safer.

The APs within the network then communicate with each other in order to send data to and from the network gateway which provides access to the internet. Figure 1: An example of a Wireless Mesh Network There can be multiple network gateways within a WMN. WMNs are commonly set up with APs installed in range of each other on telephone poles or roofs of buildin... ... middle of paper ... ... Works Cited [1] Mala Chelliah, Siddhartha Sankaran, Shishir Prasadl, Nagamaputhur Gopalan & Balasubramanian Sivaselvan. 1, January 2012. "Routing for Wireless Mesh Networks with Multiple Constraints Using Fuzzy Logic."

However, in mesh networks link failures rarely occur, therefore, the overhead is intolerable. • Seamless Roaming. Mobility of the mesh clients should also be considered to provide seamless connectivity for them.

You will learn what happens when a device on one network does not know the MAC address of a device on another network. You will learn that Reverse Address Resolution Protocol (RARP) is the protocol a device uses when it does not know its own IP address. Lastly, you will learn the difference between routing and routed protocols and how routers track distance between locations. You will also learn about distance-vector, link-state, and hybrid routing approaches and how each resolves common routing problems. In networking, there are two addressing schemes: one uses the MAC address, a data link (Layer 2) address; the other uses an address located at the network layer (Layer 3) of the OSI model.

ZigBee standard offers a profile that defines the network layer stack, security, and applications. Developers must be responsible for their own created application profile or integrate with public a profile which is developed by the ZigBee Alliance. ZigBee specification is an open standard which allows manufacturers to develop their own specialized applications requiring low cost and lower energy. The manual was prepared an introduction to the various components of the ZigBee network. After a quick overview of ZigBee, we begin with a description of high level concepts which are used in wireless communications and move to specific protocols required to perform communication standards.

So, it is important to secure the wireless network by utilizing small time to be saved in future. The security of wireless networks becomes more vital because it is most commonly used in every field. There are number of practices developed for securing wireless networks till now and because of the scope, and its importance, more research is being done for more secure wireless networks in future ( Solms, BV & Marais, E 2004). Wireless Network Security 1. Wireless Networking Basics According to (Vacca, JR 2006) The term wireless networking means the technology that facilitates two or more computers to communicate using standard network protocols, but without network cabling.

Technology has made it possible for people to connect to the network wirelessly. This growing trend of Wireless Local Area Networks, WLAN, are continually evolving following the development of new WLAN standards. The WLAN standard has evolved from the first WLAN standard 802.11 to the newest generation of Wi-Fi signaling, 802.11ac. The standard has changed as new technology made it possible for improvements in aspects such as higher bandwidth, reduced interference and overall better performance. The development and implementation of 802.11ac has prominently impacted the end user experience.

1.2 Aims and Objectives of the Study The requirement of the study is to maintain accuracy and reliability of the routing path chosen for transferring messages between two hosts. Upholding the quality route at the same time as reduction energy requirement of wireless sensor network is foremost important confront in WSN. Objective of the project is to design an energy saving, shortest path and minimum hop algorithm. 1.3 Current Gaps in Knowledge Huge expansion in the wireless sensor network area has been concluded by numerous analysts of market in excess of the subsequently coming years. But wireless sensor networks performance is parameter dependent.

Through this case study I am going to be investigating the different wireless communications that are available, and also how they could benefit Staffordshire Health Authority. I will look at previous and current wireless standards, their differences and the speeds they can provide. I will also consider the best standards to use when working with a network to support VoIP (Voice over Internet Protocol). Throughout the case study I will talk about the technologies that could work within our network environment, and others that would not be suitable or effective. Finally I will look at VoIP and how it will impact on Staffordshire Health Authority.