WIRELESS CELLULAR NETWORK:
A cellular network is telecommunication network. Usually it is maintained by any service provider which supports smartphones, which gives ability to provide any type of data such as internet browsing and e-mail.
CELLULAR NETWORK ORGANISATION:
In a cellular network a particular area is divided in to cells, each cell is served by its own antenna. Each cell is assigned a band of frequencies and is served by a base station, consisting of transmitter receiver and control unit. Adjacent cells are given different types of frequencies to avoid cross talking or interference.
Cells are designed in two shapes, square shaped cells and hexagon shaped cells.
SQUARE SHAPED CELLS:
Let “d” be the width of a cell, then a cell has four neighbors at a distance d and four neighbors at a distance 1.414d.
HEXAGON SHAPED CELLS:
Distance from center to vertex is equal to length of the side.
If R is the radius of the cell distance between centers of cells is √3 R.
FREQUENCY REUSE:
Frequency reuse is nothing but the use of same frequency in other near by c...
2. Width of the base which divided to 3 groups: 1: More than 5 mm; 2: between 3-5 mm; less than 3 mm.
This shows that there is a difference of 2cm between A and B, and B
A wireless carrier which at one point was the largest wireless cell phone carrier and throughout the years it has diminished is the Sprint Corporation. Sprint has had many up and down but it had made its mark not to become irrelevant. Sprint Corporation which is also Sprint is a telecommunication company that is all around America. They provide internet carrier and wireless services. It has become the fourth largest wireless network provider. The company headquarters in Kansas. Sprint came from the Brown telephone Company which was founded in 1899. They merge with Nextel which all has been downhill from there. On December 11, 2012 Sprint purchased equity holdings of one of Clear wires equity holders which allowed them to not have two headquarters and completely move to Kansas. This move saved them a lot of money but did not help the morale of the company’s employees.
To solve this problem, I built different sized cubes (2 x 2 x 2, 3 x 3
Then take the ruler and put it on the end of the opisthocranion and measure the distance in cm,record your answer on the table
For example there are three arrangements of rectangles that form a 3 foot long runner. Note that the
If I am to use a square of side length 10cm, then I can calculate the
Cellular phones carry a diverse group of users. In June 1985, there were about 203,000 cellular phone service subscribers. By June 1989, the number had exploded to 2.7 million subscribers, and by June 1995 there were mire than 26 million subscribers. When cell phones were first introduce, only people with a lot of money had them and the service was very expensive. It was a lot cheaper to stop and use the pay phone than it was to use a cell phone. Now, it is almost as cheap to use a cell phone to make a long distance call as it is to make a long distance call using AT&T.
The rapid progress of embedded MEMS (micro-sensing technologies) and wireless communication has made wireless sensor networks possible. Such an environment may have many wireless nodes which are inexpensive; each node is capable of collecting, storing and processing environmental data, and communicating with neighboring nodes. These sensors are connected with wires in the past but tod...
then r1 is the distance from 0 to 1 and r2 is is the distance from point 0 to 2.
Local Area Networks also called LANs have been a major player in industrialization of computers. In the past 20 or so years the worlds industry has be invaded with new computer technology. It has made such an impact on the way we do business that it has become essential with an ever-growing need for improvement. LANs give an employer the ability to share information between computers with a simple relatively inexpensive system of network cards and software. It also lets the user or users share hardware such as Printers and scanners. The speed of access between the computers is lighting fast because the data has a short distance to cover. In most cases a LAN only occupies one or a group of buildings located next to each other. For larger area need there are several other types of networks such as the Internet.
Architectural difference: 3G network architecture is the radio terminal base stations (BTS) aggregate the radio Access
frequency carrier while the user is moving within a telephone service area. In addition to telephony, modern mobile phones support a variety of other services, such as text messaging, email, Internet access, short-range wireless communications, business applications, gaming, and photography. Cell Phones which offer these and more general computing capabilities are referred to as smartphones. Cell Phones are now a way of life in the generation we live in and call home today, and cell phones have changed and benefited our world. By means of texting , making calls, gaming applications, saving people’s lives , helping people while
My mobile phone network coverage allows me to make a call wherever I want, and the call is never cut off by the network. Independent surveys show that it has the best signal quality with excellent call clarity. The network covers 99 percent of the population, and it has installed more transmitters than any other digital network company. They guarantee that they work the best; in fact, they will even add a free minute of talk time if the call is ever lost. International and off-peak calls are the cheapest in the area. The company has been voted number 1 in customer satisfaction for 5 years in a row.
A cell phone is essentially a two-way radio consisting of a radio transmitter and a radio receiver. When you talk to your friend on your mobile phone, your mobile transfers your voice into an electrical signal, which is then transmitted through radio waves to the nearest cell tower. The network of cell phone towers then replays the radio wave to friend’s cell phone, which converts it to an electrical signal and back to sound. Cell phones transmit radio waves in all directions.