They have become one of the most important elements of today. It is known by all, but only very few really know What are they and how do they work? This is how these networks have become essential in the life of the human being, being used daily by the majority of users.
As usual, wireless networks were previously used only in the military or scientific academiesbut as time has passed, its use has expanded, coming to be used in shopping malls, industries, clinics, at home, work, among many other sites.
Due to the great amplitude that was achieved, they had to create different types of networks where each one of them was adapted for a specific need. This is how here we will explain a little more about the WMAN network and its operation.
What is a WMAN network and what are they for in computing?
This type of network allows users to be able to establish wireless connections between different locations within the same metropolitan area. They stand out for having a range of tens of kilometers. Connections can usually be established between office buildings in a city or on university campuses.
One of its main advantages is that it does not require a high investment cost for what it is its installation through copper or fiber cables, as well as the rental of the lines. Thus, WMAN typically uses infrared light or radio waves to transmit the data from point A to point B.
Thus, this type of network usually has a radius of action greater than WLAN networks, thus covering tens of kilometers to signal transmissionbecoming enough to cover a complete population.
Thus, WMAN mainly serves to interconnect WLAN networks with each other. Also, use WiMAX technology where its use is increasing and reaching hard-to-reach areas or rural areas where they did not arrive before internet connections.
What are the main characteristics of a WMAN network?
This type of network is mainly characterized by be the sum of many interconnected local area networks. What is also known to many as a wireless local loop.
He himself has become a wireless communication standard which is based on the IEEE 802.16 standard, being a protocol very similar to WiFibut which has a greater range of coverage and bandwidth.
With this in mind, here we show you the main characteristics of this network:
- Your coverage can extend up to a maximum of 50 km.
- According to the frequency range that is used for transmission can be of radio waves or infrared.
- In the case of infrared, they must be completely aligned on a surface, and they go from 300 GHz to 384 THz.
- It also has a communication system such as the LMDS “Local Multipoint Distribution Service”.
- Its technology is based on WiMAX “Worldwide Interoperability for Microwave Access”.
- It is used to provide connectivity portable and mobile broadband anywhere and anytime.
- offers the possibility of power access a wireless alternative to traditional wired systems. In this way it allows free broadband access.
WMAN vs MAN, how are they different and which is the better type of network?
wireless networks They have become one of the most important factors today. That is why the creation of a large number of networks has been developed to carry out different functions and in this way achieve better results and greater signal ranges. According to all this, here we are going to explain the difference between what is a WMAN network and a MAN network.
WMAN network
- The WMAN network or wireless metropolitan network is a wireless version of MAN.
- usually has a increased range of tens of kilometers Compared to MAN.
- Use techniques that are based on the WiMAX communications standard.
- is capable of providing a transmission of data in an entire population.
MAN network
- The MAN network or Metropolitan Area Network has been designed to be used for data transmission in towns or cities.
- They have a smaller geographic reach that wide area networks such as WMAN.
- They are characterized by having very good speed connections where they use fiber optic cables.
- Has a much lower latency and error rates than WMAN networks.
- Is very stable and resistant to radio interference.
What are the most used topologies for this type of wireless networks?
Currently there are different types of topology in wireless networks, being these in different ways and each of them with a specific objective. Thus, the topology is responsible for describing the way in which the data is converted into a frame format And the way in that electrical pulses are transmitted through the communication medium. Therefore, here we show you each of the most used topologies in networks.
Mesh Topology
Also Known As mesh network topologywhere each of nodes is connected to all other nodes. This allows messages to be taken from one node to another by different paths and in a very simple way.
In the case that the mesh network is completely connected, it cannot have any break in communication. This is because each of the servers have your own connections to all other servers of the system.
Ring Topology
Is ring net indicates that each of the stations have a single input and output connection. Therefore, each of these stations will have a receiver and a transmitter which also performs the function of translatorand in turn will pass the information to the next station.
In this case, the communication is given by the passage of a token or tokenwhich can be defined as a kind of element that goes around collecting all the information to later deliver it in packages. This serves to avoid what is the loss of information and collisions.
Double ring topology
The double ring topology is similar to the ring topology, but this has the difference that it has a second ring connecting the same devices. That is, it allows increase network flexibility and reliabilitywhere each of the network devices is part of two independent ring topologies.
Therefore, this topology acts as if they were two independent ringsbut only one is used at a time.
star topology
the star network indicates that the seasons are directly connected to a central point of the system. Therefore, all existing communications have to go through it. In this case the devices are not found. connected to each other, neither does it allow a lot of information traffic simultaneously, this in order to avoid collisions.
Bus Topology
This Bus network is characterized by having a single communication channel which is called bus, backbone or trunk and which connects to different devices. This causes all devices to have to share the same channel to communicate with each other.
Tree Topology
Finally we found tree topology, which indicates that the nodes are located in the form of a tree. This looks very similar to what a series of interconnected star networks, but in this case they do not have a central node. But if they have a trunk node which is frequently occupied by a switch or hubfrom which the other nodes branch.
Examples of Wireless Metropolitan Area Networks
Wireless networks are characterized mainly by operating as any form of established communicationeither through the reciprocity of senders and receivers through a physical channel or through coordinated interaction.
Depending on the functionality of these elements will mainly depend on the performance of the network. With this in mind, here are some examples. of wireless metropolitan area networks.
LAN networks
- Is a computer network or computer network which are connected to each other by physical devices for sending and receiving information.
- Is a net home that anyone can install in their home to cover devices such as computers and mobile phones.
- It is also considered as a internal office network where this type of network is often implemented so that all workers’ computers can communicate. This also allows them to have shared access to equipment such as printers, sharing work folders among other elements.
- In almost all the cities of the world they use it to provide free internet to the public. This is done through low-range wireless hotspots, typically not be more than 10 meters.
- They are also frequently used in small commercial stores, where they can provide Internet to your computers and to customers who come to the store.
WAN networks
- National banking networks usually use this type of network, since from it they can manage a very wide network and connections with other banks, even if they are abroad.
- The Internet is another clear example of what these are WAN networkswhich is able to communicate technological devices that are in enormous distances, even between different countries or continents.
- It is also used by military satellite networkssince it allows them to have a very broad communication to which add the satellites, ships, planes, domestic transport vehiclesamong many others.
- The big ones business franchises in the world they also use WAN networks. This allows you to keep your workers informed and communicated, being able to exchange information and data between each of the branches.
MAN networks
- They are generally used by government institutions of each of the countries, it offers greater security which makes it ideal for share sensitive and private data. These are usually interconnected through a optical fiber that allows them to be on the other side of the city and not lose any type of information.
- Used mostly by companies that sell local internet accessalso known as ISP or Internet Service Provider. This service is offered through MAN networks which are in charge of managing each of private LAN networks.
- Today it is also applied by a large number of businesses and shops that are interconnected in the same University Cityand which in turn are separated by a wide distance.