Key Pages
Category: | Science and Technology |
Domain: | |
Keywords: |
Networks & systems - broadband, wireless, computing, Wi-Fi, WiMAX, UWB, mesh networks, telecommunications
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Outlook: |
A nearly ubiquitous broadband architecture of wireless services for users of electronic telecommunications devices may be available globally by 2015.
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Summary Analysis: |
By 2010, devices such as mobile handsets may support many different short- and medium-range wireless technologies, including RFID, near field, PAN, WAN, WLAN, and metro broadband. This will be achieved through either software-defined radio (SDR) or multimode chips combined with smart antenna technology and will allow device users to move seamlessly between physical networks with a single logical session, unaware of which technology they are using.
By 2015, wireless broadband network coverage in developed countries may be nearly complete in urban areas and along major transport links such as roads and railways, and possibly as extensive as mobile phone coverage is now. From 2010 through 2020, new networking protocols will continue to be added as required to connect device users to the most appropriate (in terms of price and performance) wireless network available in any given location. By 2020, several different network architectures will co-exist, offering device users nearly ubiquitous proximity to high-bandwidth digital voice, text, graphic data, and media communications services. These will include networks with controlled and managed access points (for example, the cellular or 802.11 models) and ad-hoc or mesh networks. Ad-hoc networks can be installed at low cost and can grow on an as-needed basis, making them more economic than any other network design. Mesh networks employ one of two connection arrangements: full mesh topology (where each node is connected directly to each of the others) or partial mesh topology (where some nodes are connected to all the others, and some nodes are connected only to those other nodes with which they exchange the most data). Mesh architectures will be used in several ways, including citywide broadband deployments, special purpose ad-hoc networks (such as between moving vehicles) and person-to-person peer-to-peer (P2P) networks (for instance, between consumer devices). Wireless sensor networks (WSN) are also likely to be a major component of the telecommunications infrastructure by 2020. They will provide distributed network and Internet access to sensors, controls, and processors embedded in equipment, facilities, and environments. RFID tags are especially likely to proliferate and to connect objects to each other and to data collection environments. At the same time, all of our fibre-optic backbone infrastructure will be upgraded with massive improvements in throughput by combining and transmitting multiple signals simultaneously at different wavelengths on the same fibre using a technique called wave division multiplexing (WDM) or dense wave division multiplexing (DWDM).
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At A Glance: | When: |
3–10 years
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Where: |
Global
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How Fast: |
Years
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Likelihood: |
High
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Impact: |
Medium-Low
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Controversy: |
Low
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