Wireless network

this ppt contain the information about Wireless network

1. Dr. Panjabrao Deshmukh Polytechnic, Amravati Seminar On “Wireless Network” Guided By : Prof. R. H. Rathod Presented By: Ku. Devyani b.Vaidya

2. Index 1. introduction 2. Need of Wireless Network 3. How Wireless Networks Work 4 .Type of Network 5 .Illustration of Network Type 6. Comparision of Wired & Wireless network 7. Advantages 8 . Disadvantage 9 . Applications 10. Conclusion

3. Introduction What is a wireless network? A technology that enables two or more entities to communicate without network cabling. wireless networking today is about where broadcast radio was in the late 1920s. The use of wireless technology is quickly becoming the most popular way to connect to a network. Wi-Fi is one of the many available technologies that offer us the convenience of mobile computing.

4. Needs Of Wireless Networks Mobile communication is needed. Communication must take place in a terrain that makes wired communication difficult or impossible. A communication system must be deployed quickly. Communication facilities must be installed at low initial cost. The same information must be broadcast to many locations.

5. How Wireless Networks Work Moving data through a wireless network involves three separate elements: the radio signals, the data format, and the network structure. Each of these elements is independent of the other two, so you must define all three Introduction to Wireless Networks 13 when you invent a new network. In terms of the OSI reference model, the radio signal operates at the physical layer, and the data format controls several of the higher layers. The network structure includes the wireless network interface adapters and base stations that send and receive the radio signals .

6. T ypes O f N etwork WLANS: Wireless Local Area Networks WLANS allow users in a local area, such as a university campus or library, to form a network or gain access to the internet. WPANS : Wireless Personal Area Networks The two current technologies for wireless personal area networks are Infra Red (IR) and Bluetooth (IEEE 802.15). IR requires a direct line of site and the range is less. WMANS : Wireless Metropolitan Area Networks This technology allows the connection of multiple networks in a metropolitan area such as different buildings in a city .

7. Illustration Of Network Types .

8. Comparision of Wired & Wireless Network Wired Networks Wireless Networks Installation of wired network is so Difficult. Installation is Easy to Installation Time of Instalation is more. Time of installation is less. Reliability is high is Reasonably high Speed & bandwidth are high & 100mbps Speed & bandwidth are low & 54mbps

9. Advantages of wireless network Speed. Cost. Centralized Software Management. Resource Sharing. Electronic Mail. Flexible Access. Workgroup Computing.

10. Disadvantages Of Network Server faults stop applications being available Network faults can cause loss of data. Network fault could lead to loss of resources User work dependent upon network

11. Applications Cable replacement for peripherals Mobile extension of wired networks Fixed wireless between homes and businesses and the Internet Mobile access to the Internet from outdoor areas

12. Conclusion In high-density urban area there may be multiple networks like MPLS, Metro Ethernet, fibre networks, ADSL. There may WiMAX is a technology for providing high speed access to rural areas. It can provide Copyright to IJIRCCE DSL like speeds . Various terrain types such as hills with a rather high density of trees, moderate tree density, flat area with a low tree density can dictate the use of WiMAX technology Radio Waves are unpredictable and may go beyond the coverage area of the premises. Some parts of the coverage area may not get the radio waves.

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