Wireless Networking - 4

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Wireless Networking - 4



(4.1) Types of Wireless Network :-

        Wireless networks can be established using two different ways. The two types of wireless networks are :
  • Peer-to-Peer (P2P) or Ad-hoc or ISS
  • Access Point or Infrastructure wireless LAN BSS

(4.2) Peer-to-Peer (P2P) or Ad-hoc or ISS :-

      In Peer-to-Peer (P2P) or Ad-hoc or ISS, multiple computers are connected wirelessly using Wireless NIC. This network allows wireless devices to directly communicate with each other. Wireless devices which are within each other's range can communicate with each other without the involvement of a Central Access Point. Computers can access pointers and share files using this type of networking, but cannot access a wired LAN resources. 
   
       The mode is similar to the Mesh Topology. It is basically used for creating a small wireless workgroup and hence is implemented where the number of user is less. 

       A Peer-to-Peer or Ad-Hoc type of Network is shown in the figure below :

(4.2.1) Setting up Ad-Hoc Wireless Network :-

          You can setup an Ad-Hoc wireless network to share an Internet Connection at home without using router and Switch. You can also use it to share files or printer between two or more computers wirelessly. 

          The most common sources of trouble in Ad-Hoc mode networking are incorrect configuration and insufficient signal strength. Ensure your devices are located close to each other, and ensure configuration settings are made identically on each device. 

Note :-

          You can have upto 9 wireless clients in an Ad-Hoc wireless network, which the computer send there data directly to each other. 


(4.3) Access point or Infrastructure wireless LAN or BSS :-

      In Access point or Infrastructure wireless LAN an Access Point is used to setup wireless network. Access Point is also known as Infrastructure Wireless LAN. In this type of Network, The wireless device connects to the access point and to the network. It is widely used wireless LAN. The access point acts as a Hub to connect two wireless computers. WAP acts as a Bridge which is used to connect the wireless network to the wired network, thus allowing wireless computers access LAN resources and existing Internet connectivity. This mode is similar to a Star Topology where the wireless network range can be extended by adding additional access points to the existing Network. The infrastructure mode is complicated as compared to the Ad-Hoc mode. The location of the access points requires proper planning to provide effective wireless connectivity. 
      Access point or infrastructure wireless LAN is shown in the figure below :

      
  



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