Telecommunication Electronics - Global Trends, Estimates and Forecasts, 2011-2018

Global Market Watch: With a CAGR of 12.8%, global market value for Telecommunication Electronics Application sector is anticipated to be worth US$847.6 billion by 2018. On a global scale, Asia-Pacific accounts for more than 26.3% of the market share. While US accounts for the largest share of the global market value on a country basis, India surpasses the US in terms of growth rate anticipated in the near future. Among the application sectors, Mobile Phones account for the largest share of the entire market, driving a CAGR of 14.5% during the analysis period 2011-2018. Wireless LANs & WANs see as the fastest growing end-user with a forecast with a CAGR of approximately 20.9% by 2018. With the growing trend in network and mobile satellite terminal technologies (dual-mode GSM cellular/satellite, handset and broadband data) the future of telecommunication electronics industry suggests for a positive growth.
Report Focus: The report 'Telecommunication Electronics - Global Trends, Estimates and Forecasts, 2011-2018' reviews the latest telecommunication electronics market trends with a perceptive attempt to disclose the near-future growth prospects. An in-depth analysis on a geographic basis provides strategic business intelligence for electronics sector investments. The study reveals profitable investment strategies for electronics companies, business executives, product marketing managers, new business investors and many more in preferred locations.
The report primarily focuses on: • Emerging Market Trends • Advancements in the Technological Space • Market Demand of the Segments (By-Region) • Key Growth Areas and Market Size • Region-Wise Demand Factor • Key Competitors Edge • Investment Strategies
Estimates are based on online surveys using customized questionnaires by our research team. Besides information from government databases, company websites, press releases & published research reports are also used for estimates.
The analysis primarily deals with applications. Further, the subdivided categories include:
Telecommunication Electronics - By Application • Mobile Phones • Wireless LANs & WANs • DSL/Cable Modems • Other (Incudes: Infrastructure & Radio Communication, Telephone, Wired Network, Wireless Network, Etc.,)
The period considered for the telecommunication electronics market analysis is 2011-2018. The region wise distribution of the market consists of North America (USA, Canada and Mexico), Europe (Germany, Russia, United Kingdom, Italy, France, Spain, The Netherlands, Poland, Belgium, Denmark and Rest of Europe), Asia-Pacific ((Ex-Japan) (China, India, South Korea, Taiwan, Australia, Malaysia, New Zealand and Rest of Asia-Pacific)),Japan, Latin America (Brazil, Argentina, Columbia, Venezuela, Peru and Rest of Latin America) and Rest of World (South Africa, Turkey, United Arabs Emirates, Egypt, Saudi Arabia, Israel and Rest of Rest of World). The market growth rate in the major economies such as the U.S., Japan, China etc. are estimated individually.
More than 1346 leading market players are identified in electronics industry out of which 42 key companies in telecommunication electronics that project improved market activities in the near future are profiled. The report consists of 85 data charts describing the market shares, sales forecasts and growth prospects. Moreover, key strategic activities in the market including mergers/acquisitions, collaborations/partnerships, product launches/developments are discussed Source: http://www.sacbee.com/2013/12/17/6007657/telecommunication-electronics.html

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OFDM TRANSMITTER AND RECEIVER

                          OFDM TRANSMITTER        

An OFDM carrier signal is the sum of a number of orthogonal sub-carriers, with baseband data on each sub-carrier. These sub-carriers are being independently modulated commonly using some type of modulation technique may be  Quadrature amplitude modulation (QAM) or phase shift keying (PSK). This  baseband signal is typically used to modulate a main RF carrier.

 is a serial stream of binary digits. By inverse multiplexing , these are first demultiplexed into  parallel streams, and each one mapped to a  symbol stream using some modulation technique.  The modulation techniques may be different, so some streams may carry a higher bit-rate than others.

An inverse FFT is computed on each set of symbols, giving a set of complex time-domain samples. These samples are then quadrature mixed to passband in the standard way. The real and imaginary components are first converted to the analogue domain using DACs ; the analogue signals are then used to modulate cosine and sine waves at the carrier  frequency, , respectively. These signals are then summed to give the transmission signal, 

                     OFDM RECEIVER

The receiver picks up the signal  , which is then quadrature-mixed down to baseband using cosine and sine waves at the carrier frequency. This also creates signals centered  on , so low-pass filters are used to reject these. The baseband signals are then sampled and digitised using ADCs , and a forward FFT is used to convert back to the frequency domain.

This returns  parallel streams, each of which is converted to a binary stream using an appropriate symbol detector. These streams are then re-combined into a serial stream ,  , which is an estimate of the original binary stream at the transmitter.

                             

USAGE:

OFDM is used in ADSL connections that follow the ITU G.992.1 standard, in which existing copper wires are used to achieve high-speed data connections.

Long copper wires suffer from attenuation at high frequencies. The fact that OFDM can cope with this frequency selective attenuation and with narrow-band interference are the main reasons it is frequently used in applications such as ADSL modems. However, DSL cannot be used on every copper pair; interference may become significant if more than 25% of phone lines coming into a central office are used for DSL.

 OFDM is exclusively used in LAN and MAN applications.