06-12-2012, 06:29 PM
PAPER PRESENTATION ON 4G TECHNOLOGY
[attachment=42873]
Abstract
The main aim of our paper is to bring forth the detail about the low cost wireless internet access for rural area through the 4G technology wi-fi (IEEE 802.11n).
Although a large number of Internet users now enjoy high-speed access, there are still vast geographic regions where broadband services are either prohibitively expensive or simply unavailable at any price. Researches and technology are more needed for rural areas where the development is lacking.
Hence our paper analyses the cost and effectiveness of all possible technologies such as Cisco Aeronet Bridge based system, tethered Aerostat based network, and mesh network to find the suitable broadband access technology for rural people in a bearable cost.
Introduction
The 4G technologies are all about improving the performance of today’s mobile networks, and also revolutionizing the model to create a truly ultra-broadband mobile experience.
The international telecommunications regulatory and standardization bodies are working for commercial deployment of 4G networks roughly in the 2012-2015 time scale.
OFDM technology
Orthogonal frequency division multiplexing (OFDM) is a modulation technique that divides the communication channel into a number of equally spaced frequency bands. A subcarrier carrying a portion of user information is transmitted in each Band. Each subcarrier is independent of each other.
OFDM transmits data simultaneously over a large number of channels at different frequency, enables to send a large data. Hence high speed information transmission occurs.
MIMO system
The multiple input multiple output (MIMO) technology was decided to add to IEEE802.11n standards. MIMO is a family of technologies for multi antenna wireless transmission and reception that increases the achievable data throughput within the same occupied bandwidth, increases quality of communication, and allowing dramatically increased spectral efficiency, while offering sustainable benefits to system performance, it also increases the challenges in design and system evaluation and validation.
Multiple antennas at both the base station and terminal can significantly increases data rates with sufficient multipath. It uses signals multiplexing between multiple transmitting antennas (space multiplex) and time or frequency.
MIMO is well suited for OFDM, as it is possible to process independent time symbols as soon as the OFDM waveform is correctly designed for the channel. This process of OFDM greatly simplifies the process. The signal transmitted by m antennas is received by n antennas. Processing of received signals may deliver several performance improvements: range ,quality of received signals and spectrum efficiency
Software Defined Radio
SDR technology is enabling frequencies and communication methods and to be changed flexible by means of software. It responses to internet protocol version 6 (IPV6). SDR benefits from today’s high processing to develop multi-band, multi-standard base stations and terminals.
Although in future the terminals will adapt the air interface to the available radio access technology, at present this is done by the infrastructure. Several infrastructure gains are expected from SDR.
For example to increase the network capacity at a specific time (eg. During sports event), an operator will reconfigure its network adding several modes at a given transceiver station (BTS). SDR makes this reconfiguration easy.
Conclusion
Wireless communication is an unending, undying field which will prosper as long as the human race exist. To make India a leader in wireless
technology, the awareness and adaptation of the technologies forth coming new generation are needed and there is a need for conducting mission oriented research for 4G technology to give it to the people with low cost.
[attachment=42873]
Abstract
The main aim of our paper is to bring forth the detail about the low cost wireless internet access for rural area through the 4G technology wi-fi (IEEE 802.11n).
Although a large number of Internet users now enjoy high-speed access, there are still vast geographic regions where broadband services are either prohibitively expensive or simply unavailable at any price. Researches and technology are more needed for rural areas where the development is lacking.
Hence our paper analyses the cost and effectiveness of all possible technologies such as Cisco Aeronet Bridge based system, tethered Aerostat based network, and mesh network to find the suitable broadband access technology for rural people in a bearable cost.
Introduction
The 4G technologies are all about improving the performance of today’s mobile networks, and also revolutionizing the model to create a truly ultra-broadband mobile experience.
The international telecommunications regulatory and standardization bodies are working for commercial deployment of 4G networks roughly in the 2012-2015 time scale.
OFDM technology
Orthogonal frequency division multiplexing (OFDM) is a modulation technique that divides the communication channel into a number of equally spaced frequency bands. A subcarrier carrying a portion of user information is transmitted in each Band. Each subcarrier is independent of each other.
OFDM transmits data simultaneously over a large number of channels at different frequency, enables to send a large data. Hence high speed information transmission occurs.
MIMO system
The multiple input multiple output (MIMO) technology was decided to add to IEEE802.11n standards. MIMO is a family of technologies for multi antenna wireless transmission and reception that increases the achievable data throughput within the same occupied bandwidth, increases quality of communication, and allowing dramatically increased spectral efficiency, while offering sustainable benefits to system performance, it also increases the challenges in design and system evaluation and validation.
Multiple antennas at both the base station and terminal can significantly increases data rates with sufficient multipath. It uses signals multiplexing between multiple transmitting antennas (space multiplex) and time or frequency.
MIMO is well suited for OFDM, as it is possible to process independent time symbols as soon as the OFDM waveform is correctly designed for the channel. This process of OFDM greatly simplifies the process. The signal transmitted by m antennas is received by n antennas. Processing of received signals may deliver several performance improvements: range ,quality of received signals and spectrum efficiency
Software Defined Radio
SDR technology is enabling frequencies and communication methods and to be changed flexible by means of software. It responses to internet protocol version 6 (IPV6). SDR benefits from today’s high processing to develop multi-band, multi-standard base stations and terminals.
Although in future the terminals will adapt the air interface to the available radio access technology, at present this is done by the infrastructure. Several infrastructure gains are expected from SDR.
For example to increase the network capacity at a specific time (eg. During sports event), an operator will reconfigure its network adding several modes at a given transceiver station (BTS). SDR makes this reconfiguration easy.
Conclusion
Wireless communication is an unending, undying field which will prosper as long as the human race exist. To make India a leader in wireless
technology, the awareness and adaptation of the technologies forth coming new generation are needed and there is a need for conducting mission oriented research for 4G technology to give it to the people with low cost.