Telenor to debut cheap SIM cards in September

Telenor will introduce its telecom service in September by selling SIM cards for Ks 1,500 (about US$1.60) apiece, company said in a press release. It will not be necessary to register in advance to buy a Telenor SIM card. Customers can buy as many SIM cards as they like as long as they can show a National Registration Card, Telenor staff said. Internet speed on the 3G network will depend on how many users are surfing in a particular area, but the lowest speed should range from 700 Kbps to 1 Mbps at peak user time and the highest from 4-6 Mbps, Telenor staff said. The range in the the 2G network could be as low as 100-150 Kbps during peak hours in some locations. Telenor said it plans to offer a 4G service if there are enough handsets on the market to support one. Telenor plans to construct 8,000 telecom towers across the country, but is facing a massive hurdle to install the first 1,000 stations by September. After the first thousand are installed it plans to add 300 to 400 per month. The speed of mobile internet connections occasionally exceed 1 Mbps on the 3G network, but are usually about 100 Kbps. Internet connections via a smart phone are either slow or nonexistent, users say. Telenor said it plans to open 200 SIM cards sales centres and will also sell the cards through 100,000 SIM retail shops nationwide. Published on Friday, 06 June 2014 16:40 Specialize in telecom, Datacenter, & inter-networking supply here’s original Article

Artificial Intelligence: A New Frontier in Data Center Innovation

Google made headlines when it revealed that it is using machine learning to optimize its data center performance. But the search giant isn’t the first company to harness artificial intelligence to fine-tune its server infrastructure. In fact, Google’s effort is only the latest in a series of initiatives to create an electronic “data center brain” that can analyze IT infrastructure. Automation has always been a priority for data center managers, and has become more important as facilities have become more complex. The DevOps movement seeks to “automate all the things” in a data center, while the push for greater efficiency has driven the development of smarter cooling systems. Where is this all headed? Don’t worry. The data center won’t be a portal to Skynet anytime soon. Data center managers love technology, but they don’t totally trust it. “You still need humans to make good judgments about these things,” said Joe Kava, vice president for data centers at Google. “I still want our engineers to review the recommendations.” Kava said last week that Google has begun using a neural network to analyze the oceans of data it collects about its server farms and to recommend ways to improve them. Kava said the use of machine learning will allow Google to reach new frontiers in efficiency in its data centers, moving beyond what its engineers can see and analyze. While there have been modest efforts to create unmanned “lights out” data centers, these are typically facilities being managed through remote monitoring, with humans rather than machines making the decisions. Meanwhile, Google and other companies developing machine learning tools for the data center say the endgame is using artificial intelligence to help design better data centers, not to replace the humans running them. Romonet: predictive TCO modeling One company that has welcomed the attention around Google’s announcement is Romonet, the UK-based maker of data center management tools. In 2010 the company introduced Prognose, a software program that uses machine learning to build predictive models for data center operations. Romonet focuses on modeling the total cost of ownership (TCO) of operating the entire data center, rather than a single metric such as PUE (Power Usage Effectiveness), which is where Google is targeting its efforts. The company says its predictive model is calibrated to 97 percent accuracy across a year of operations. Google’s approach is “a clever way (albeit a source-data-intensive one) of basically doing what we are doing,” Romonet CEO and co-founder Zahl Limbuwala wrote in a blog post. “Joe’s presentation could have been one of ours. They’ve put their method into the public domain but not their actual software – so if you want what they’ve got you need to build it yourself. Thus they just shone a light on us that we couldn’t have done ourselves.” Romonet’s modeling software allows businesses to accurately predict and manage financial risk within their data center or cloud computing environment. Its tools can work from design and engineering documents for a data center to build a simulation of how the facility will operate. Working from engineering documents allows Romonet to provide a detailed operational analysis without the need for thermal sensors, airflow monitoring or any agents – which also allows it to analyze a working facility without impacting its operations. These types of models can be used to run design simulations, allowing companies to conduct virtual test-drives of new designs and understand how they will impact the facility. “I can envision using this during the data center design cycle,” said Google’s Kava. “You can use it as a forward-looking tool to test design changes and innovations.” BY RICH MILLER ON JUNE 6, 2014 Original Article here The best products and services in Data center, telecom, and inter-networking supply

What are the various types of xDSL?

There are several forms of xDSL, each designed around specific goals and needs of the marketplace. Some forms of xDSL are proprietary, some are simply theoretical models and some are widely used standards. They may best be categorized within the modulation methods used to encode data. Below is a brief summary of some of the known types of xDSL technologies. ADSL Asymmetric Digital Subscriber Line (ADSL) is the most popular form of xDSL technology. The key to ADSL is that the upstream and downstream bandwidth is asymmetric, or uneven. In practice, the bandwidth from the provider to the user (downstream) will be the higher speed path. This is in part due to the limitation of the telephone cabling system and the desire to accommodate the typical Internet usage pattern where the majority of data is being sent to the user (programs, graphics, sounds and video) with minimal upload capacity required (keystrokes and mouse clicks). Downstream speeds typically range from 768 Kb/s to 9 Mb/s Upstream speeds typically range from 64Kb/s to 1.5Mb/s. ADSL Lite (see G.lite) CDSL Consumer Digital Subscriber Line (CDSL) is a proprietary technology trademarked by Rockwell International. CiDSL Globespan's proprietary, splitterless Consumer-installable Digital Subscriber Line (CiDSL). EtherLoop EtherLoop is currently a proprietary technology from Nortel, short for Ethernet Local Loop. EtherLoop uses the advanced signal modulation techniques of DSL and combines them with the half-duplex "burst" packet nature of Ethernet. EtherLoop modems will only generate hi-frequency signals when there is something to send. The rest of the time, they will use only a low-frequency (ISDN-speed) management signal. EtherLoop can measure the ambient noise between packets. This will allow the ability to avoid interference on a packet-by-packet basis by shifting frequencies as necessary. Since EtherLoop will be half-duplex; it is capable of generating the same bandwidth rate in either the upstream or downstream direction, but not simultaneously. Nortel is initially planning for speeds ranging between 1.5Mb/s and 10Mb/s depending on line quality and distance limitations. G.lite A lower data rate version of Asymmetric Digital Subscriber Line (ADSL) was been proposed as an extension to ANSI standard T1.413 by the UAWG (Universal ADSL Working Group) led by Microsoft, Intel, and Compaq. This is known as G.992.2 in the ITU standards committee. It uses the same modulation scheme as ADSL (DMT), but eliminates the POTS splitter at the customer premises. As a result, the ADSL signal is carried over all of the house wiring which results in lower available bandwidth due to greater noise impairments. Often a misnomer, this technology is not splitterless per se. Instead of requiring a splitter at customer premises, the splitting of the signal is done at the local CO. G.shdsl G.shdsl is an ITU standard which offers a rich set of features (e.g. rate adaptive) and offers greater reach than many current standards. G.shdsl also allows for the negotiation of a number of framing protocols including ATM, T1, E1, ISDN and IP. G.shdsl is touted as being able to replace T1, E1, HDSL, SDSL HDSL2, ISDN and IDSL technologies. HDSL High Bit-rate Digital Subscriber Line (HDSL) is generally used as a substitute for T1/E1. HDSL is becoming popular as a way to provide full-duplex symmetric data communication at rates up to 1.544 Mb/s (2.048 Mb/s in Europe) over moderate distances via conventional telephone twisted-pair wires. Traditional T1 (E1 in Europe) requires repeaters every 6000 ft. to boost the signal strength. HDSL has a longer range than T1/E1 without the use of repeaters to allow transmission over distances up to 12,000 feet. It uses pulse amplitude modulation (PAM) on a 4-wire loop. HDSL2 High Bit-rate Digital Subscriber Line 2 was designed to transport T1 signaling at 1.544 Mb/s over a single copper pair. HDSL2 uses overlapped phase Trellis-code interlocked spectrum (OPTIS). IDSL ISDN based DSL developed originally by Ascend Communications. IDSL uses 2B1Q line coding and typically supports data transfer rates of 128 Kb/s. Many end users have had to suffice with IDSL service when full speed ADSL was not available in their area. This technology is similar to ISDN, but uses the full bandwidth of two 64 Kb/s bearer channels plus one 16 Kb/s delta channel. MDSL Usually this stands for multi-rate Digital Subscriber Line (MDSL). It depends on the context of the acronym as to its meaning. It is either a proprietary scheme for SDSL or simply a generic alternative to the more common ADSL name. In the former case, you may see the acronym MSDSL. There is also another proprietary scheme which stands for medium-bit-rate DSL. Confused yet? RADSL Rate Adaptive Digital Subscriber Line (RADSL) is any rate adaptive xDSL modem, but may specifically refer to a proprietary modulation standard designed by Globespan Semiconductor. It uses carrierless amplitude and phase modulation (CAP). T1.413 standard DMT modems are also technically RADSL, but generally not referred to as such. The uplink rate depends on the downlink rate, which is a function of line conditions and signal to noise ratio (SNR). SDSL Symmetric Digital Subscriber Line (SDSL) is a 2-wire implementation of HDSL. Supports T1/E1 on a single pair to a distance of 11,000 ft. The name has become more generic over time to refer to symmetric service at a variety of rates over a single loop. UDSL Universal DSL. See G.lite. VDSL Very High Bit-rate Digital Subscriber Line (VDSL) is proposed for shorter local loops, perhaps up to 3000 ft. Data rates exceed 10 Mb/s. Original Article here The best products and services in telecom and internet-working supply

Sprint-CEO-Hesse-Contradicts-Masayoshi-Son-on-Fixed-LTE-Plans

To try and sell regulators on a Sprint takeover of T-Mobile, SoftBank boss and Sprint Chairman Masayoshi Son has been insisting that the deal would allow Sprint to join the fixed-LTE broadband space, bringing additional competition to the home broadband market. This strategy appears to be news for Sprint CEO Dan Hesse, who stated this week that offering a fixed LTE service is nowhere on Sprint's horizon. When outlets pointed out the contradictory positions of Son and Hesse, the company's PR department stated: quote: "Dan was speaking to Sprint's short-term focus--completing our 3G and voice network rip and replace, rolling out our 4G LTE network, launching Sprint Spark, expanding the Framily platform and growing EBITDA--and how they fit with our spectrum and other assets/resources," Sprint spokesman Scott Sloat told FierceWireless. "Masa's remarks have been in the context of his long-term vision." In other words, like I noted in April, Sprint has its hands full just running a decent LTE network right now, and the promise of significant fixed LTE competition is just regulator bait.by Karl Bode 08:23AM Friday Jun 06 2014 original article here The best products and services in telecom and internet-working supply