Essay On Wireless Technology

Essay Wireless Technology
IEEE 802.15.4: a wireless communication technology for large–scale ubiquitous computing
applications
Anis KoubГўa, Mario Alves, Eduardo Tovar
PP–HURRAY! Research Group, Polytechnic Institute of Porto Rua Dr. Antonio Bernardino de
Almeida, 431, 4200–072 Porto, PORTUGAL {akoubaa, emt}@dei.isep.ipp.pt, mjf@isep.ipp.pt
Abstract. Wireless Sensor Networks (WSNs) have been attracting increasing interest for supporting a
new generation of ubiquitous computing systems with great potential for many applications such as
surveillance, environmental monitoring, health care monitoring or home automation. However, the
communication paradigms in WSNs differ from the ones associated to traditional wireless networks,
triggering the need for new...show more content...
Additionally, the IEEE 802.15.4 protocol may also provide timeliness guarantees by using the
Guaranteed–Time Slot (GTS) mechanism, which is quite attractive for time–sensitive WSNs. In fact,
when operating in beacon–enabled mode, i.e. beacon frames are transmitted periodically by a
central node called the PAN Coordinator for synchronizing the network, the IEEE 802.15.4 protocol
allows the allocation/deallocation of GTSs in a superframe for applications with real–time
constraints. Hence, the GTS mechanism provides a minimum service guarantee for the
corresponding nodes, thus enabling the prediction of the worst–case performance for each node's
application. In this paper, we describe the most important features of the IEEE 802.15.4 protocol
that are relevant for WSNs and we discuss the ability of this protocol to fulfill the different
requirements of WSNs and to resolve inherent paradoxes involving power–efficiency and timeliness
guarantees.
2. Overview of the IEEE 802.15.4 protocol
2.1. Physical Layer (PHY) IEEE 802.15.4 offers three operational frequency bands: 2.4 GHz, 915
MHz and 868 MHz. There is a single channel between 868 and 868.6 MHz, 10 channels between 902
and 928 MHz, and 16 channels between 2.4 and 2.4835 GHz. The data rates are 250 kbps at 2.4
GHz, 40 kbps at 915 MHZ and 20 kbps at 868 MHz. Lower frequencies are more suitable for longer
transmission ranges due to lower propagation losses. However, the advantage of high data
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Wireless Technology Essay
Wireless Technology Paper
Stephen Wenclewicz,
Ronda Wilson, Matthew Tiemens,
Sheleada Wells, Annabelle Franklin
DeVry University
Tech, Society and Culture
LAS432
Professor Laurence Hornibrook
Table of Contents Introduction to Wireless Technology4 Overview ofWireless Technology5 Science
that Drove Wireless Development 6 Signal Types10Wireless Network Infrastructure12 History of
Wireless Technology15 Social Factors that Drove Wireless Technology19 Wireless Technology
Timeline24 Political Effects on Development28 Legal Issues Related to Wireless Technology30
Legal Concerns Related to the Development of Wireless Technology31 Economics in Relation to
Wireless Technology33 Psychological...show more content...
A way that the tribes overcame this issue was by setting up different points and each drummer
would acknowledge the sender's message by a series of beats on the drum. After the message was
confirmed received then the message would be sent to the next receiver.
In the times of the American Indians, the tribes would use smoke signals as a form of wireless
communication. The downside to this form of communication was the limited distance based on
line of sight. Due to a limited alphabet and the issues, that the wind causes would increase the
chances that the communication would be lost or misinterpreted. Soon followed was the
introduction of the semaphore flag. The semaphore flag system is one used to convey information
at a distance by using signals with flags, paddles or gloved hands. The downside to this form of
wireless communication is that it is limited to line of sight as well, and that because this had to take
place in the open the chances of your message being stolen is increased.
Science that Drove Wireless Development
(Wenclewicz)
"In the nineteenth century, light beams were used for short–haul communications, particularly in
military contexts. Very detailed messages could be transmitted by a coded sequence (Morse code)
of blinking lights from sender to receiver. Again, this was effective over limited distances and
provided a quiet, yet visible means of communication. Drawbacks included limited

Wireless Technology
Wireless technology is an industry that has seen much growth and progress in the years following
the inception of the internet and cell phones. Our society has progressed to the point to where we
can no longer function without this technology. Business, travel, and everyday life now are
dependant on wireless technology.
Wireless technology is just what its name implies, communicating or computing without wires and
phone lines. Wireless technology uses a variety of different devices such as desktop and laptop
computers, personal digital assistants (PDA's), cell phones, and many others.
The major benefit of wireless technology to users is the immediate access it offers to resources.
Whether it is...show more content...
Horizontal integration delivers benefits such as data mining, real–time transaction processing, and
decision–support systems. Wireless data–translation protocols allow contrasting devices to efficiently
use information from all sources.
Wireless technology has also lead to the advent of PDA–cell phone hybrids called smart phones. The
combination cell phone and organizer also has Web access, email and messaging capabilities, an
MP3 player, Bluetooth support, and a digital video camera.
PalmSource made wireless device–to–device communication more popular by putting an infrared
port on every Palm OS handheld. From the advent of the first Palm OS handhelds in 1995, the
concept of "beaming" information became a norm in the business world. Business cards,
applications, and content began to move from one device to another with ease. PalmSource is now
innovating again by pioneering Bluetooth in mobile devices such as handhelds and cell phones.
Bluetooth is a cable–replacement technology for passing information between devices not unlike
infrared. The advantage that Bluetooth has over infrared is that devices using Bluetooth do not have
to be pointed at one another, the distance between devices can be much greater, the speed of
transmission is much higher, and the data passed can be encrypted and

Wireless technology has become the wave of the future. From cellular phones to wireless point of
sale devices, wireless networks and technology is all around us. In order to jump on the wireless
train, one must first understand the different standards. To properly and safely utilize wireless
technology the user also must understand the various types of wireless security. Once grasping these
technologies and standards, anyone can implement a wireless network in their home. First, the
802.11b wireless networking standard, which is the most common consumer based standard. The
802.11b standard's frequency is in the 2.4 GHz range which is common with most cordless land line
telephones and some microwave ovens. There are not really many...show more content...
An upgrade to 802.11b is 802.11g which offers some of the same technology as 802.11b but with
significant upgrades and improvements. The most significant improvement over the 802.11b
standard is the speed. 802.11g supports speeds upwards of 55mbps which is a huge increase over
the 11mbps of 802.11b. This standard operates at 2.4 GHz which is the same frequency that the
802.11b standard operates at. Another great thing about the 802.11g technology is it is
backwards compatible with a 802.11b wireless card so there is no need to go out and buy a new
wireless network card for your computers. Finally a brand new standard that is still in its infancy
stages and still has yet to be ratified by the IEEE is 802.11n. 802.11n will be a huge step towards
equality amongst wireless and wired networks. First, the standard sets a speed requirement of at
least 100mbps which is common amongst most wired computer networks. It is most likely that the
throughput will be in the 200mbps range with a maximum being set in the 600mbps range. Looks
like the 802.11n standard will be operating at both 2.4 GHz and 5 GHz frequencies. Look for the
final 802.11n draft out in April of 2009. After choosing a particular standard to go with and buying
the equipment to support that standard, one need to know the method of security they wish to
implement on their

Wireless Technologies Essay
Wireless Technologies Wireless technology is widely used throughout different countries and
governments, and is one of the most fast–growing and needed technologies on the market today.
While in the past it has been looked at as something that is not needed, now is necessary. Most
companies have main business functions that occur outside the main office, and taking a laptop
computer into the field helps the need to complete services particular to that business. Globally,
the wireless field is expanding and both people and business are beginning to heavily depend on its
services all over the world. Wireless technology has also become more popular in the field of
education and is being taken in by not only university...show more content...
Companies offer services such as free weekends and nights, rollover minutes, and family
packages where if you buy 2 cell phones you get a third one for free. As time goes by, the wide us
of cell phones for both the average person and business is evolving into something that is
mandatory to have and cannot go without. Not to mention the physical aspect of how the cell
phones are evolving and getting smaller and smaller. The use of cell phones has also even
impacted the amendment of laws. Currently in the state of New York and Texas it is illegal to talk
on the phone while driving a vehicle. Since cell phones have become such a large part of our every
day lives, safety issues must be taken into affect and assessed where needed.
Wireless technology has now moved beyond the home computer with the high–speed Internet and
moved into our schools. Both students and staff on university campuses have interests in creating
mobile computing labs utilizing laptop computers equipped with wireless Ethernet cards. Wireless
is being adopted for many new applications and providing a solution for environments where wires
may not be the best solution. Schools that are being constructed are building computer labs strictly
for wireless access, and classrooms that can adapt to such use. Schools of all levels are making the
use of wireless technology a widely used technology inside classrooms which then forces the

Wireless Technology
Wireless technology is a booming business that is finding far reaching benefits on a global level.
Corporations, schools, homes, and cafes are implementing wireless solutions as individual
organizations and users seek more freedom and constant access. Wireless Fidelity (WiFi) is the
latest buzzword to capture the market in our individual quest for access anywhere at any time. All
of this comes at a price. Security is a major concern moving forward, as well as having too much
access that does not lead to needed personal downtime. In the end what is more valuable, access or
secure access at the right time?
Wireless Technology Overview According to VoiceandData.com (2005), wireless "refers to
communications,...show more content...
In corporate environments, wireless access is being used to perform all sorts of tasks. Wireless
applications ranging from wireless Wide Area Networks (WAN) to Voice over Internet Protocol
(VoIP) and blackberry's are being used to facilitate constant access to the level of enterprise access.
In today's market, connectivity to and from corporate offices and outbuildings, to hotels and
conferences is an absolute must.
Wireless in my world Wireless, as it applies to my life, consists of a wireless home network that
allows me to sit on the couch and do my homework. The freedom of connecting via a laptop and
sitting on the couch to do homework and browse the internet is exactly the reason that wireless
access continues to grow throughout our homes and businesses. Wireless access has a strong
market base, as is evident by the continued advances and inventions that will continue to make our
lives more convenient. Case in point, I recently purchased a WAP to use for my XBOX, to be able
to connect to XBOX live via my router upstairs. The WAP allows me to connect my XBOX to my
wireless network and play online games. The sheer freedom of movement is what wireless is all
about. I feel I have done a good job of securing my wireless connection but there are those who
would probably not agree with me. Simple settings such as not broadcasting so my neighbors can
see my wireless router to using password enabled

Wireless Technology
WIRELESS TECHNOLOGY
INTRODUCTION Technology continues to develop very quickly down to the corner of the world,
but not with strong will and hard work, information technology, chaired by the computer becomes a
linear phenomenon with the development progress of the age. The development of information
technology is developing very rapidly, this development can not be separated from the ability of
computers to perform data communication and also establish a computer network both local
network or Internet network. In development, the computer does not stand alone to form it all,
computer connectivity technology requires that a computer and a faithful partner accomplice
computers within an organization's...show more content...
It was their first major upgrade when they went from 1G to 2G. This leap effectively took cell
phones from analog to digital. With this second generation introduced a new variant of
communication called SMS or text messaging. Across the world, many operators adopted the Global
System for Mobile communication (GSM) standard, which used Time Division Multiple Access
(TDMA) Planned for voice transmission with digital signal and the speeds up to 64kbps 2G was the
digital handsets that we are used today, with 2.5G representing handsets with data capabilities over
GPRS
3G – The third generation As the use of 2G phones became more widespread internet usage was
growing. If we can expect 3– 5 mbps of speed, which is actually equal to cable/DSL kind of speed in
to a moving device! That's what all about 3G. This enabled faster data–transmission speeds, greater
network capacity and more advanced network services, basically turns your cell phones to a mini
computer.Also 3G is that Wide Band Voice Channel, by this the world has been contracted to a little
village because a person can contact with other person located in any part of the world and can even
send messages too. 3G gives clarity of voice as well can talk without any disturbance simultaneously.
Not only these but also have entertainments such as Fast Communication, Internet, Mobile T.V,
Video Conferencing,

Essay on Wireless Technologies
Wireless data has become the technology of the future. Data is being passed from one location to
another without the human eye detecting this transaction. Wireless data is transferred in many
forms from home networks, business networks, and cellular networks. Each of these networks
operates on a different scale and technology. Home networks have been steadily growing over the
years as manufacturers have developed new and easier to use devices that install quickly and give
the owner the ability to manage their own wireless internet at home. Wireless routers have become
the standard at home and many users are installing these to allow the growing number of computers
and laptops in their household to access the World Wide Web. Wireless
...show more content...
It also allows for backwards compatibility with the 802.11b, meaning that 802.11g access points will
work with 802.11b wireless network adapters. (Mitchell) On the other hand, 802.11n offers up to
100Mbps with an increased signal range and, like 802.11g, is backwards compatible. Home
networks are commonplace in today's society, but wireless networks in business have been around
for years as companies tackled the challenges of connectivity in large offices and multiple
locations. Most businesses today use wireless technologies in one form or another. They use
wireless access points to deliver the network to the local building for laptops and other devices.
They also have the ability to connect sensors that monitor heat/cooling, door access, and cameras.
One form of wireless technology implemented by businesses is the use of a wireless controller for
connecting multiple access points to create a Wireless Local Area Network (WLAN.) This is
accomplished by configuring the wireless controller with the necessary information such as Service
Set Identifier (SSID,) passphrase, and other configuration information that it will then pass on to the
access points. By doing this, the Network Administrator can connect multiple access points
throughout the building that communicate back to the controller. This will allow the access points
to get their configuration from the controller as well as monitor for any

Wireless Technology
Nowadays most technology is becoming wireless. These inventions are making our lives much
easier, and in this fast–paced world we really need it. Although some of the technological
developments are just making us lazy, like the remote control. Although it makes it easy for us,
some people take advantage therefore it contributes to obesity. Most of the technology has been
invented for the great demand on them, it has also helped medical advances. Wireless technology
just helps makes our lives run by smoother, than if we still had everything wired.
The first wireless technology was the remote control. Televisions had knobs on them in order for
people to be able to change the channels on it. Then there was...show more content...
People did not have to carry around change in order to use the pay phone, which in the long run was
more expensive than purchasing a cell phone. Another advantage was when on the road, anyone
had an emergency people would have to find a pay phone to call for help. Now people just call
from their cars without having to get off.
The next wireless technology became laptops, or compact computers with no cords. These new
computers are great for travelers, business people, students, and anyone that uses one. Not only
does a laptop give the option of using the computer while moving around places, it is also a
compact computer so it takes up much less space. The regular PCs are a big box plus the monitor
and the speakers. Laptops have all of that included in it, and are still smaller than the PC box.
Another great advantage is that they are portable, therefore a person can continue their work
while on their way home (when not driving). Most people that use laptops are business people,
they can travel and no loose anytime in their jobs by using their laptops to complete their tasks.
They are also very handy because you do not need to be sitting in one place while working at
home. You can be sitting in your comfortable couch in your living room or in your bed, or even
your kitchen while having a cup of coffee.
First we had the wireless remote control, then cordless phones, cell phones, computers, etc. One of
the things that needed to become wireless, but took

Essay On Wireless Technology

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