21-04-2011, 12:24 PM
Presented By:
PANCHAL SHRUTI
PATEL BHUMI
[attachment=12555]
ABSTRACT
The term “Wireless” has come to mean no broadcast communication, usually between individual who very often use portable or mobile equipment. Wireless communication is the fastest-growing part of the very dynamic field of electronic communication. It is an area with many jobs that go unfilled due to a shortage of knowledgeable people. Wireless telecommunication began only a little later than the wired.
The advantages of wireless communication are: Completes the access technology portfolio, Goes where cable and fiber cannot, Involves reduced time to revenue and Provides broadband access extension.
In the telephone networks, the circuit between the subscriber's equipment (e.g. telephone set) and the local exchange in the central once is called the and subscriber loop' or &local loop'. Traditionally, the copper wire has been used as the medium for local loop to provide voice and voice-band data services Wireless local loop provides two-ways a telephone system where subscribers are connected to the Public Switched Telephone Network (PSTN) using radio signals rather than copper wire for the part of a network or for the all of the connection between the subscribers & the switch.
The communication for WLL is by signal transmission that is Point-to-Point. These signals travels thought the air via a microwave platform instead of through cables made of fiber or copper. Fixed wireless communication does not require feeds from satellite or from the local phone service. This reduces the cost and time for planning miles of cable.
The architecture of WLL consist of major components: the wireless access network unit (WANU), the wireless access subscriber unit (WASU), and the switching function (SF).
The technical requirements of WLL are: Communication quality, Short construction period, Absence of interference with other, Wireless systems and High traffic volume.
WLL will be Implemented across Five Categories of Wireless Technology are: Analog cellular, Digital cellular, Personal communication service (PSN)/Personal communication network (PCN), Cordless telephone 2nd generation (CT-2)/Digital European cordless telecommunication and Proprietary implementation.
Advantages of WLL are: fast development, low construction cost, low operation and maintenance cost, customer connection cost, high bandwidth service provision, lower network extension costs and high system capacity.
CHAPTER 1: INTRODUCTION TO WIRELESS COMMUNICATION
1.1 WHAT IS WIRELESS COMMUNICATION:-
Wireless Communication by radio, through ultrasound and infrared light are also used occasionally. The term “Wireless” has come to mean no broadcast communication, usually between individual who very often use portable or mobile equipment. The term rather vague, and there are certainly broad line applications that are called wireless without falling exactly into the above application.
Wireless communication is the fastest-growing part of the very dynamic field of electronic communication. It is an area with many jobs that go unfilled due to a shortage of knowledgeable people.
1.2 HISTORY OF WIRELESS COMMUNICATION:-
Wireless telecommunication began only a little later than the wired. Morse’s telegraph (1837) and Bell’s telephone (1876) were soon followed by Hert’s first experiment with radio (1887). Hert’s system was a laboratory curiosity, but Marconi communicated across the English Channel in 1899 and across the Atlantic Ocean in 1901. Then successes led to the widespread use of radio for ship-to-shore communication using Morse code.
Early wireless system used crude, through often quite powerful, speaks gap transmission and was suited only for radiotelegraphy. The invention of the triode vacuum tube by De Forest in 1906 allowed for the modulation of a continuous-wave signal and made voice transmission practical. Commersial radio broadcasting in both the United States and Canada began in 1920.Twoway police radio, with the equipment occupying most of the car trunk began in mid-1930s.
After the end of World Wore ||, two systems were developed that presaged modern wireless communication. AT & T introduced its Improved Mobile Telephone Service (IMTS) in 1946.Pagers were introduced in 1962. The world’s first cellular radio service was installed in Japan in 1979, followed in 1983 by North American services.
1.3 ADVANTAGES OF WIRELESS COMMUNICATION:
20-7
The following list summarizes the main benefits of using wireless technologies:
1.3.1 Completes the access technology portfolio—Customers commonly use more than one access technology to service various parts of their network and during the migration phase of their networks, when upgrading occurs on a scheduled basis. Wireless enables a fully comprehensive access technology portfolio to work with existing dial, cable, and DSL technologies.
1.3.2 Goes where cable and fiber cannot—the inherent nature of wireless is that it doesn’t require wires or lines to accommodate the data/voice/video pipeline. As such, the system will carry information across geographical areas that are prohibitive in terms of distance, cost, access, or time. It also sidesteps the numerous issues of ILEC coloration.
Although paying fees for access to elevated areas such as masts, towers, and building tops is not unusual, these fees, the associated logistics, and contractual agreements are often minimal compared to the costs of trenching cable.
1.3.3 Involves reduced time to revenue—Companies can generate revenue in less time through the deployment of wireless solutions than with comparable access technologies because a wireless system can be assembled and brought online in as little as two to three hours. This technology enables service providers to sell access without having to wait for cable-trenching operations to complete or for incumbent providers to provide access or backhaul.
1.3.4 Provides broadband access extension—Wireless commonly both competes with and complements existing broadband access. Wireless technologies play a key role in extending the reach of cable, fiber, and DSL markets, and it does so quickly and reliably. It also commonly provides a competitive alternative to broadband wire line or provides access in geographies that don’t qualify for loop access.
PANCHAL SHRUTI
PATEL BHUMI
[attachment=12555]
ABSTRACT
The term “Wireless” has come to mean no broadcast communication, usually between individual who very often use portable or mobile equipment. Wireless communication is the fastest-growing part of the very dynamic field of electronic communication. It is an area with many jobs that go unfilled due to a shortage of knowledgeable people. Wireless telecommunication began only a little later than the wired.
The advantages of wireless communication are: Completes the access technology portfolio, Goes where cable and fiber cannot, Involves reduced time to revenue and Provides broadband access extension.
In the telephone networks, the circuit between the subscriber's equipment (e.g. telephone set) and the local exchange in the central once is called the and subscriber loop' or &local loop'. Traditionally, the copper wire has been used as the medium for local loop to provide voice and voice-band data services Wireless local loop provides two-ways a telephone system where subscribers are connected to the Public Switched Telephone Network (PSTN) using radio signals rather than copper wire for the part of a network or for the all of the connection between the subscribers & the switch.
The communication for WLL is by signal transmission that is Point-to-Point. These signals travels thought the air via a microwave platform instead of through cables made of fiber or copper. Fixed wireless communication does not require feeds from satellite or from the local phone service. This reduces the cost and time for planning miles of cable.
The architecture of WLL consist of major components: the wireless access network unit (WANU), the wireless access subscriber unit (WASU), and the switching function (SF).
The technical requirements of WLL are: Communication quality, Short construction period, Absence of interference with other, Wireless systems and High traffic volume.
WLL will be Implemented across Five Categories of Wireless Technology are: Analog cellular, Digital cellular, Personal communication service (PSN)/Personal communication network (PCN), Cordless telephone 2nd generation (CT-2)/Digital European cordless telecommunication and Proprietary implementation.
Advantages of WLL are: fast development, low construction cost, low operation and maintenance cost, customer connection cost, high bandwidth service provision, lower network extension costs and high system capacity.
CHAPTER 1: INTRODUCTION TO WIRELESS COMMUNICATION
1.1 WHAT IS WIRELESS COMMUNICATION:-
Wireless Communication by radio, through ultrasound and infrared light are also used occasionally. The term “Wireless” has come to mean no broadcast communication, usually between individual who very often use portable or mobile equipment. The term rather vague, and there are certainly broad line applications that are called wireless without falling exactly into the above application.
Wireless communication is the fastest-growing part of the very dynamic field of electronic communication. It is an area with many jobs that go unfilled due to a shortage of knowledgeable people.
1.2 HISTORY OF WIRELESS COMMUNICATION:-
Wireless telecommunication began only a little later than the wired. Morse’s telegraph (1837) and Bell’s telephone (1876) were soon followed by Hert’s first experiment with radio (1887). Hert’s system was a laboratory curiosity, but Marconi communicated across the English Channel in 1899 and across the Atlantic Ocean in 1901. Then successes led to the widespread use of radio for ship-to-shore communication using Morse code.
Early wireless system used crude, through often quite powerful, speaks gap transmission and was suited only for radiotelegraphy. The invention of the triode vacuum tube by De Forest in 1906 allowed for the modulation of a continuous-wave signal and made voice transmission practical. Commersial radio broadcasting in both the United States and Canada began in 1920.Twoway police radio, with the equipment occupying most of the car trunk began in mid-1930s.
After the end of World Wore ||, two systems were developed that presaged modern wireless communication. AT & T introduced its Improved Mobile Telephone Service (IMTS) in 1946.Pagers were introduced in 1962. The world’s first cellular radio service was installed in Japan in 1979, followed in 1983 by North American services.
1.3 ADVANTAGES OF WIRELESS COMMUNICATION:
20-7
The following list summarizes the main benefits of using wireless technologies:
1.3.1 Completes the access technology portfolio—Customers commonly use more than one access technology to service various parts of their network and during the migration phase of their networks, when upgrading occurs on a scheduled basis. Wireless enables a fully comprehensive access technology portfolio to work with existing dial, cable, and DSL technologies.
1.3.2 Goes where cable and fiber cannot—the inherent nature of wireless is that it doesn’t require wires or lines to accommodate the data/voice/video pipeline. As such, the system will carry information across geographical areas that are prohibitive in terms of distance, cost, access, or time. It also sidesteps the numerous issues of ILEC coloration.
Although paying fees for access to elevated areas such as masts, towers, and building tops is not unusual, these fees, the associated logistics, and contractual agreements are often minimal compared to the costs of trenching cable.
1.3.3 Involves reduced time to revenue—Companies can generate revenue in less time through the deployment of wireless solutions than with comparable access technologies because a wireless system can be assembled and brought online in as little as two to three hours. This technology enables service providers to sell access without having to wait for cable-trenching operations to complete or for incumbent providers to provide access or backhaul.
1.3.4 Provides broadband access extension—Wireless commonly both competes with and complements existing broadband access. Wireless technologies play a key role in extending the reach of cable, fiber, and DSL markets, and it does so quickly and reliably. It also commonly provides a competitive alternative to broadband wire line or provides access in geographies that don’t qualify for loop access.
