Made with
ConceptDraw
DIAGRAM 16

WLAN

Making the WLAN schemes and diagrams is what sometimes the jobs might require. To complete such task, you can always use the ConceptDraw DIAGRAM diagramming and drawing software which was developed especially for people with such needs. There is also the so-called “Wireless Networks” solution placed in the ConceptDraw STORE application that can be useful for making the mentioned drawings.

WLAN is an abbreviation for the “wireless local area network”. It is a wireless computer network that links two or more than two devices with each other by using the wireless communication within some limited area such as school, home, office building or computer laboratory. Having WLAN means having an opportunity to use this great opportunity to move around within some local coverage area. Through a special gateway, any WLAN can also provide the needed connection to the wider Internet.

Wireless Networks Solution in ConceptDraw STORE

Example 1. Wireless Networks Solution in ConceptDraw STORE

Most modern WLANs are known to be based on the IEEE 802.11 standards. They are marketed under the “Wi-Fi” brand name. The Wireless LANs have become popular quite recently for use at home, due to the simplicity of use or installation. Such WLANs are also very popular in the commercial properties that offer the wireless access to their customers so they can use it for free.

Wireless LANs have lots of applications and all the modern implementations of WLANs can be small in-home networks as well as the large one, campus-sized ones to completely mobile networks on trains and airplanes. All the users can access the Internet from different WLAN hotspots in hotels, restaurants and also with portable devices that connect to either 4G or 3G networks.

Quite often such types of the public access points do not require any registration or even a password in order to join the needed network. At the same time, there are the other ones that can be accessed only in case the registration has occurred or some fixed fee is paid. All the existing Wireless LAN infrastructures can also be used for working as the indoor positioning systems having no modification to the existing hardware.

There are two definitions for the wireless LAN roaming, first of which is the Internal Roaming. In this case, the Mobile Station moves from one access point to another AP within some home network in case the signal strength is not strong enough. An authentication server is known to be performing the re-authentication of the previously mentioned Mobile Station via 802.1x.

In case of billing of QoS in the home network, a Mobile Station roams from one access point to another, interrupting the flow of data among an application that is connected to the network and the Mobile Station (MS). The last one has to periodically monitor the presence of the other, alternative access points in case they can provide any better connection.

At some point, the MS may decide to re-associate with an access point that has a stronger wireless signal, being based on the proprietary mechanisms. But in this case the Mobile Station may lose a connection with an access point before associating with another access one, so in terms of providing the reliable connections with applications, the MS must include the appropriate software that can provide the needed session persistence.

External Roaming can be another definition for the wireless LAN roaming. In this particular case, the Mobile Station moves into a wireless local area network of another Wireless Internet Service Provider, taking their services, known to be called as a “Hotspot”. Any user can use another foreign network independently of his home network in case it is open to other visitors but the owners. There should be special billing systems and the authentication to use for mobile services in any foreign network, though.

There are two basic modes of operation in IEEE 802.11. First of is the infrastructure and the second one is “ad hoc mode”. In the last one, the mobile units are known to be transmitting directly peer-to-peer. In the first one, the infrastructure one, such mobile units can communicate through the certain access points that serve as the bridges to other networks.

Because any wireless communication is known to be using a more open medium for communication to compare to the wired LANs, there are also the included encryption mechanisms that the 802.11 designers add, such as the Wired Equivalent Privacy and the Wi-Fi Protected Access in order to secure the wireless computer networks. There are many access points that can also offer the so-called Wi-Fi Protected Setup. The last mentioned is simply a quick method of joining any new device to the encrypted network.

Most of the Wi-Fi networks are known to be deployed in infrastructure mode and a base station there is known to be acting as a wireless access point hub. The nodes within it communicate through the hub and the hub itself has a special fiber or wired network connection, having the permanent wireless connections to other nodes. The wireless access points are usually fixed, known to be providing the needed service to their client nodes within some particular range.

The wireless clients are smartphones, laptops, tablets and other devices that connect to the access point in order to join the network itself. Sometimes such network has more than one access points, with the same security arrangement and “SSID”. In such case, it becomes possible to connect to any access point on that network as the client software may try to choose the access point in order to give the best service, such as the access point with the best, the strongest signal.

WLAN *

Example 2. WLAN — Wireless Local Area Network

Having the ConceptDraw DIAGRAM diagramming and drawing software as well as the Wireless Networks solution may lead to a great looking result of a professionally created WLAN diagrams by using the available stencil library with 81 wireless communications objects as well as the pre-made examples of the WLAN drawings.






NINE RELATED HOW TO's:

Network Security →

The Internet is a giant computer network which connects computers all over the world. It is integral part of human society and business. But the serious question for network engineers, designers, lawmakers and enforcers is the need for protect the Internet networks from the Internet crimes, hacking and attacks. There are quite a number of hardware, software and physical methods of protection against them. The samples you see on this page were created in ConceptDraw DIAGRAM using the tools of Network Security Diagrams Solution for ConceptDraw DIAGRAM software. They show protection networks with Firewalls and other network security devices.Network Security *
Picture: Network Security
Related Solution:

What Is a Wireless Network? →

What Is a Wireless Network? Wireless network refers to any type of computer network that uses wireless (usually, but not always radio waves) for network connections. Wireless computer network diagrams help system administrators and network engineers to find out amount and type of equipment needed for each office WLAN.What Is a Wireless Network? *
Picture: What Is a Wireless Network?
Related Solution:

Physical Security Plan →

ConceptDraw DIAGRAM diagramming and vector drawing software extended with Security and Access Plans Solution from the Building Plans Area of ConceptDraw Solution Park is a powerful software for fast and easy drawing professional looking Physical Security Plan.Physical Security Plan *
Picture: Physical Security Plan
Related Solution:

Storage area networks (SAN). Computer and Network Examples →

A Storage area network (SAN) is a dedicated network that provides access to data storage and operations only on the block level. SAN usually has own network of storage devices/elements and disk arrays that are connected with each other and to a remote data-sharing network. SANs are widely used for enhancing the storage devices (optical jukeboxes, disk arrays, tape libraries) that are accessible for networked servers. This example was created in ConceptDraw DIAGRAM using the Computer and Networks Area of ConceptDraw Solution Park. It shows the hybrid of Storage area network (SAN) and Network Attached Storage (NAS) technologies.Storage area networks (SAN). <br>Computer and Network Examples *
Picture: Storage area networks (SAN). Computer and Network Examples
Related Solution:

Competitor Analysis →

Competitor analysis is a first and obligatory step in elaboration the proper corporate marketing strategy and creating sustainable competitive advantage. Use powerful opportunities of numerous solutions from ConceptDraw Solution Park for designing illustrative diagrams, charts, matrices which are necessary for effective competitor analysis.Competitor Analysis
Picture: Competitor Analysis
Related Solution:

ATM Network. Computer and Network Examples →

Asynchronous Transfer Mode (ATM) is a high-speed networking standard intended for supporting the voice and data communications. ConceptDraw DIAGRAM is a powerful network diagramming and vector drawing software that provides the Computer and Networks solution with wide set of ready-to-use predesigned vector stencils and examples to help you design the ATM Networks quick and easy.ATM Network. Computer and Network Examples *
Picture: ATM Network. Computer and Network Examples
Related Solution:

Network Security Devices →

How to describe the necessity of using network security devices and visually illustrate this information? Now, it's very easy thanks to the ConceptDraw DIAGRAM diagramming and vector drawing software extended with Network Security Diagrams Solution from the Computer and Networks Area of ConceptDraw Solution Park.Network Security Devices *
Picture: Network Security Devices
Related Solution:

Network diagrams with ConceptDraw DIAGRAM  →

Of course it is possible to keep network records in text documents, but it is very difficult to use them later. A more sound way to keep such documentation is to create a network diagram that might represent either logical network structure or physical. These diagrams are easy to understand and you will thank yourself later. There is a physical network diagram. It is a tool to represent, maintain and analysis of network equipment and interconnections. Network diagram depicts the actual network information in the attractive clear graphic form. One can learn here the LAN cable length, telecommunication type and carrying capacity. The diagram depicts servers, IP address and domain name as well. Also it shows location of hubs, switches, modems, routers, and other network equipment. The sets of special symbols and images delivered with ConceptDraw Network Diagrams solution are used to show network components. Symbols have a standard view. Therefore, various specialists can read the network diagram without any discrepancies.Network diagrams with ConceptDraw DIAGRAM  *
Picture: Network diagrams with ConceptDraw DIAGRAM
Related Solution:
ConceptDraw
DIAGRAM 16