In this part of the assignment I am firstly going to explain the effectiveness of Wireless Communication, its advantages and disadvantages. This will include the different types of Wireless technologies and how they will make transmitting data easier or harder than ever. Also I will talk about Wired communication which is one of the older technologies but now we have several different types of media forms on wired communications and they all do a different job. Wireless Technologies could be satellite links or Radio communication. They all have good and bad points to discuss. Wired Technology could include twisted pair, Fibre optic or broadband over power lines.
Wireless communication has transformed the way we communicate to each other.
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Microwave signals tend to be 300MHz to 300GHz which is a signal that is sent through the air. Satellites are stations which will orbit the earth in a pattern; if there was no relay stations then we would all rely on the satellite to be in the same position as you are so that you can access the data. What a relay station does is it will catch the signal, amplifies it and then retransmits to you or another station which will send the data throughout the whole of Britain. Our nearest station is in Birmingham, the city centre [2]. So the disadvantages of using a satellite uplink is that if you were a reporter on a case in Africa and wanted to broadcast something via a satellite without relay stations you may be cut off and your signal will be very weak [1], plus you will need to do it at the right time of day otherwise the satellite you were after would be over another country or state in Africa which is no help to you. The advantage of satellite communication is that if there is a massive mountain which will otherwise block a microwave relay station from getting past the satellite will be able to pick up that signal from the other side and then transfer it to the other side of the mountain and then relay the signal again. The most common satellites are the low orbit types which are approximately 35000 meters above the earth, so the satellite will appear stationary and …show more content…
In Wireless communication like we have just discussed, if there is a mountain in the way the wireless signal will get lost but if there was a cable going around the mountain signal will not be lost at all, it will just carry on. The first cable I will talk about is the twisted pair type of media. This is mainly used for Ethernet and telephone networking, so this type of cable would be used inside a LAN mostly. The advantages of this cable would be that it can also be used for Telephone service which means that when you dial someone the pulses of electrical charges will be pulsating through the cable through different types of terminal equipment to reach its destination. The disadvantage of using this type of cable would be that there is a transmission and distance limit that will mean that every mile or more you will need to use a repeater so that it can relay the signal and send it again through the same cable, this could cause signal
wireless communication got a lot of attention when a message was transmitted that allowed for
As evident in Table 3, Wi–Fi is the preferred means of accessing the internet in all regards except for best coverage. With the continued expansion of Wi–Fi networks, this small disadvantage could be entirely mitigated.
Wireless networks come in many configurations and use many technologies. Figure 1 depicts an example of the wireless technologies and standards used for each of the networks types defined above. The figure indicates two major categories of wireless technologies: fixed and mobile. The figure also indicates 10 technologies in use: Bluetooth, irDA, 802.11, IR LAN, IR Bridge, Ricochet, RF Bridge, Cellular, MCS and Satellite. Virtually all of these tec...
Wireless networks provide, which was just mentioned as a problem for cable networks, the option of
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.
Wireless is everywhere today whether at home working from your WIFI network to work where you might be linked a wireless network or even through your phone through a 3G or 4G network to connecting to an open wireless networks. As you can see for the most part people are connecting to wireless from the moment they leave their home till they get to work and then back. While wireless comm...
WiFi or Wireless LANs define a short-range wireless network typically used in an office or home setting that allows several users to access the network resources. IEEE 802.11 sets the standard for wireless LAN equipment and speeds and products under this standard are marketed as the WiFi brand (Certification Partners, 2012). When speeds are mentioned, it is typically in reference to the top speeds available but generally, lower speeds are the expectation. Frequency ranges are ...
Wireless communication has revolutionized our society. It provides access to communication that is impossible to implement with the use of wires. It permits helpf...
People in the present society have turned from the use of the old means of communication to the more advanced and technological ways of communicating. Technology has made it easier for people to communicate in a faster, efficient, and cost saving means through the introduction of the communication channels. The world has turned out to be the centre for technology with different technologies emerging daily as the people continue to develop from time to time to cope with the growing technology. The benefits of adopting the communication technology are explained in this article which shows why people do not function without technology.
A wireless Local Area Network (LAN) is a moderate to high-speed flexible data communications system implemented as an extension to, or as an alternative for, a wired Local Area Network (Kolawole, 2014). In wireless LAN transmission making use of radio frequency to communicate over the air eliminates or at least minimizes the use of physically wired networks. From the beginning, IEEE 802.11 was designed to look and feel like IEEE 802 wired networks to include supporting all of the protocols and LAN management tools that operate on a wired LAN (O 'Hara & Petrick, 2005). The major differences in a wireless LAN and a wired LAN is of course that there are no wires (air link) and the mobility of the solution.
Introduction: This is a 21th century, technology is the most important and improved thing of the human life. It makes life easier and faster. Development of faster sophisticated technology we have better and fast life. So all we are connect each other by computer network. There are two different way of network: Wired and wireless. Now day we can found network almost everywhere. Home, business, public place, Airport, Planes, hospitals, school, train everywhere we can found networking. Therefore, almost every sector of the economy that has affected by wired and wireless technology. 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.
Wireless communication has improved dramatically in the last few years. Their networks are indispensable providing the means for mobility, city-wide Internet connectivity, distributed sensing and outdoor computing [10]. It allows the transfer of messages between people that are on the other side of the world. Without wireless communications people would not have a lot of the devices many 21st century citizens could not live without, namely the smartphone. It is also required for devices using Bluetooth, remote controls, Wi-Fi; really any electrical devices that communicate via a wireless or wired channel [1]. The popularity of communication systems is seen from nearly anywhere in cellular networks, wireless local area networks
This term paper talks of Wi-Fi, the wireless technology that allows internet connection to be broadcasted through radio waves. Its purpose serves directly to the users looking for internet access devoid of any cords or wires.
The 802.11a wireless networking standard is not as common as 802.11b but is still utilized in many wireless networks. Primarily used in Europe and other foreign countries, 802.11a operates at a higher frequency than 802.11b at 5 GHz and at a higher speed as well at 55mbps. There are some advantages and disadvantages however to using the 802.11a wireless networking standard. The first advantage is that it operates...
Wired and wireless media are important means of transmitting or transporting information since they provide different means and benefits in some areas. Due to the differences between the two media, it is important for organizations to use both of them to capitalize on the benefits or advantages of each. Generally, wired media is media used to transport information through a network that involves the use of physical pathways i.e. wire. The most common types of wired transmission media include telephone cables and coaxial cables. With regards to computer networks, a wired home network involves connecting the computer or other related devices to a Super Hub with an Ethernet cable (“Wired or Wireless”, n.d.). However, the use of wired networks in computer systems has lessened significantly because of the introduction and prevalence of wired r...