Friday, November 28, 2014

Soon, Bluetooth data sharing may get faster

Your Bluetooth device may soon become faster at transferring data!

Researchers are looking into ways information can be shared quickly and effectively using Bluetooth technology.

Bluetooth technology is the most widespread standard wireless communication. One of its applications is the creation of electronic sensor networks.

Researchers at the University of the Basque Country in Spain studied the performance of Bluetooth networks and measured the delays taking place in information transmission time.

Transmitting the information received quickly and effectively is essential if a sensor is to successfully carry out its function.

"Let's suppose that we need a system for monitoring vital signs in a home for the elderly; preferably a wireless system. Using the deployed standard, the sensors that will be communicating via Bluetooth are connected to each other," said Josu Etxaniz-Maranon from the university's Electronic Design Research Group.

"The elderly individuals in the home are fitted with these sensors which are used to measure their body temperature, heart rate, etc and to forward the data to the nursing department," said Etxaniz.

Time is a critical factor in a network of this type, and the interval that elapses between measuring a person's heart-rate and receiving the data should be as short as possible, he added.

The research group has designed a hardware platform with specific cards that communicate via Bluetooth and form networks.

"We have transferred the data from one end of the network to the other, and then brought them back," said Etxaniz.

In multi-hop systems, the data pass through more than one node as they make their way towards the "finishing post".

Researchers carried out numerous tests with the platforms and changed the parameters that could affect time performance: how the connections between the nodes work, type of data chunk assigned by the standard used for communications, etc.

They also developed two specific methodologies for gathering information on the times.

They determined the behaviour of some of the support nodes of the standard Bluetooth, as well as how the data processing and communication tasks affect the general delay.

"One of the results which attracted our attention most was when we confirmed that there isn't the slightest delay when the nodes are permanently on; on the other hand, the delay varied between one hop and another," said Etxaniz.

In this mode of working, the delay displays a parabolic trend. According to Etxaniz, it is essential to take this factor into consideration so that the Bluetooth networks can be effective.

Source: B.S

Thursday, November 27, 2014

4G & Its Challenges

Telecom technology has taken a giant leap and India continues to be the prime destination for the mobile operators and network providers for its ever growing smart phone user base. India, one of the fastest growing markets for mobile phones can be full of surprises.

The next thing to disruptively make a difference in wireless broadband services in India is 4G LTE (Long Term Evolution). 4GLTE is the next generation in mobile network development and will offer faster data transmission than 3G is capable of. 4G LTE is a radio access technology that operates on 2300 Mhz band in India where as it is available at 1800 Mhz in many countries.

LTE is not compatible with 2G and 3G, so when buying a device in India, one has to check if the phone is compatible with 2300 MHz. 4G is designed to provide up to 10x the speeds of 3G networks for portable devices like smartphones, tabs, netbooks, notebooks and wireless hotspots. 4G technologies will enable voice, data and multimedia streaming @ 100 Mbit per second and up to as fast as 1 Gbit @ per second.

This much speed means you can stream clear and crispy video content, download songs in time and apps will download as soon as you click on install tab. India is a price sensitive market and 3G did not pick up as expected by telecom providers, the data plans have been expensive and people would rather wait for download on 2G than pay extra. If Indian history is followed, then the prices of data transfers of 3G may go down. After a pan India launch of 4G. However, phones compatible with 4G LTE may not support 2G or 3G. This may give India disruptive growth and encourage users to update to 4G compatible devices. It will be a challenge and it is interesting to see what strategy operators adopt to face this challenge.

Source:TOI

Wednesday, November 26, 2014

5G services for super-fast internet in offing

Researchers are now close to finding how software-defined cellular networking might be used to give smartphone users the next generation of super-superfast broadband - 5G . A collaboration between NEC Electronics Samsung and several academic centres in China and Iran have assessed the latest developments aimed at 5G systems .

They have proposed their own novel end-to-end (E2E) software-defined cellular network (SDCN) architecture which, they say, offers flexibility, scalability, agility and efficiency.bMoreover, it will be sustainable for providers as well as profitable. The team is currently building a demonstration system that will allow them to utilise several promising technologies in their architecture for 5G including cloud computing, network virtualisation, network functions virtualisation and dynamic service chaining.

"The approach could overcome bandwidth shortage problems, improve quality of service so avoiding delays and data loss, as well as reducing the vast number of error-prone network nodes needed for such a system," explained Ming Lei of Samsung Research and Development Institute China.
As yet, there is no single standard for 5G although various systems are being touted based on rebuilding the cellular networks to be super-efficient and exploiting different frequencies with their capacity for greater data rates.

The hope is to be able to achieve download speeds of perhaps 10 Gbits/second. Ming Lei is working with Lei Jiang of NEC Laboratories in Beijing and colleagues at the University of Electronic Science and Technology of China in Chengdu, Beijing Jiaotong University and the University of Kurdistan.
The paper was published in the International Journal of Communication Networks and Distributed Systems.

Source: Business Today

Monday, November 24, 2014

Broadband Offers Big Opportunity In India

Dr. Jerome Booth is an economist, entrepreneur, investor, commentator and an expert on emerging markets. Through his private office, New Sparta, he manages a number of his investments. He is the principal shareholder and chairman of UK phone services company New Call Telecom, which recently picked up a 70 per cent stake in Nimbuzz for $ 175 million. He is also the chairman of the investigative news journalism company ExaroNews.

Booth was in India recently. There is his book - "Emerging Markets in an Upside Down World - Challenging Perceptions in Asset Allocation and Investment" - that is aimed at institutional and retail investors. Booth was ranked by Sunday Times at number 425 on its 2013 Rich List with a personal wealth of £189m. BW|Businessworld’s Anup Jayaram spoke to Booth on his India initiatives and also delved deep to understand his interpretation of the world economy today.

Excerpts:

Immediately after the FIFA World Cup, the BRICS leaders met in Brazil. What is your opinion on the formation of the BRICS Bank? Is that the way forward?

I am quite supportive of the initiative. I don’t have a crystal ball. So I can’t tell you whether it will work, but I do hope it does. Development is not a technical problem. It’s a myth that it is a technical problem. Thinking up policies is relatively easy. It is certainly true in development banking. The enormous need for infrastructure is very well met by development banking norms. And after the Latin American crisis we have two things that we did not have in the 1930s, which was the last time we had a similar crisis. One, Keynes invented macroeconomics and second we do have the potential for massive global exit norms from emerging markets.

And if you want to do that, the obvious target in a non-inflationary way is infrastructure and housing. Primarily the need is clearly in infrastructure. That needs trillions of dollars in India and in many other countries as well. I think an organisation that can start to address that in an effective way, particularly in building on the experiences of China and other developing countries is very important. I have had lot of discussions in the central bank area. When we look at some problems in recent times in the developed world, central banks have been in some respects not as quick or not as knowledgeable about crisis management as countries in emerging markets. So when Northern Rock had its problems in the UK, I was really quite shocked at the length of time it took the central bank to react. And partly that was because of the responsibility being split three ways.

So I think there is a very real role for the BRICS Bank. And I would certainly hope that it takes off. There is a wide range of developing countries and obviously not just the five. On the ownership issue there are some parallels. If you don’t have ownership you lose some business.

How do you see the US quantitative easing (QE) affecting emerging markets?

It’s a bit like bad weather, we can all complain about it. But, all you have to do is bring your umbrella out and it becomes bearable. QE for emerging markets is an excuse to whine about things. It is not really something that you cannot deal with because policy makers have the policy tools. I am not saying that it is not the problem, but it needs to be put in context. Realistically, you can never expect a central bank of a single country to subjugate its own monetary objectives to the needs of the international community. It’s never going to happen.

QE I think has been very deliberately mis-sold. We had the banking crisis of a systemic nature for hundreds of years. The first really big one in modern times with money printing was in 1720 in France.  When you have a banking problem, you seize the bank. There are hundreds and hundreds of cases. You seize the bank, sack the management and the fiscal authorities directly control the bank and you decide what lending activity has to be promoted to continue lending. You recapitalize the bank. And you do that quickly. For ideological and political reasons, government in Western Europe, United States did not do that.

So you have depression-like conditions emerging. That happens when you have mass uncertainty, which is the best way to create a systemic banking crisis. So QE was a technique to bolster the balance sheets of banks. You see that in not just in the fact that banks could recapitalize, but the asset prices were pushed up which helped banks recapitalize themselves.

Keynes told us that when you have a lot of uncertainty, entrepreneurs will not invest, they will not employ people. And that will in create uncertainty for others. That is why you get depression. If the policy makers are so worried and that they are taking desperate action to avoid depression scenario, the last thing they want to tell investors is that is what they are doing.  People then stop all investments. So you tell them that everything is fine. And you tell them that QE will stimulate the economy. So there was this sort of double thinking. That’s the genesis of QE. Because people thought that it would stimulate the economy, they also thought that there was liquidity in the economy.

If you go to the US, the idea that it is recovering is a nonsense argument. If you look at the measures of underemployment, remembering that there are lot of people on the unemployment register, people are not signing up, because they don’t qualify for unemployment insurance. It is very difficult to measure, but the measures are available. Underemployment in the US is between 15-17 per cent of the working population.

It is still a good scenario compared to where we might be. There are 46 million people on food stamps in the US now and it peaked at 47 million. So you could say that we are getting better. But the idea that there is a recovery in the US is absurd. We had a very strong inventory cycle. It looks good for a couple of quarters then it will look worse again. So the economy won’t actually recover, till you get a consumer-led boom again which is traditionally the main driver of US growth. And that is not going to occur until you get a household debt to income that is much, much less. It has to come down to that 90 or 80 per cent. That will take at least three years or so.

One of the other things is that there has not been a global rebalancing. It has a lot to do with interest rates. So when historians look back at international monetary history, one of the great anomalies was the Asia crisis. It was this massive export of savings from poor countries to the United States and Europe. One reason why you got the bubble bursting was the lack of proper regulation of banks. And the second was the massive savings from emerging markets, effectively pushing down the US yield curve creating an artificial benchmark of risks.

Today, the really big reserves are with the emerging market central banks. They account for 85 per cent of global reserves. There are 20 more countries in emerging markets that have more reserves than the United States. There are countries like Algeria and Angola that could cause major disruptions in the treasury market if they started selling.

I consider India’s reserves large and very sufficient, there’s no need to build it any further. The goal should be to stabilise. In other words, one should not be worried about a current account deficit in India. It’s a good sign of confidence in a country. The role of the central bank in managing reserves is to diversify them, certainly in line with trade patterns.

Where do you see India in all of this?

Our understanding of risk is very perverse. What it means for India is that India should not subscribe to the finance theory view of the world that risk is some linear thing and that US treasuries are non risk.  That’s complete nonsense. There’s no such thing as risk free. Everything is risk; risk is a much more complex thing than volatility. My book is a frontal assault on finance theory. Basically, it’s misapplication. It’s not a critique of the academics. What you have is a lot of theories that are not relevant. Friedman himself said if a theory had unrealistic assumptions and no tactical results, then it’s perfectly useless. And about 80 per cent of finance theory falls in that category.

Practically for policy makers in India it means that one should be thinking about foreign investment when it comes to allowing pension funds that are based abroad. That has not happened yet in India. But when it does, you need to have a different perception of global risk. China has its own sovereign rating agency Dagong, and frankly their ratings of the sovereign are much more realistic in my opinion than using the most established rating agencies.

Could you provide some details on your investment in telecom in India?

We see huge potential in India’s nascent Internet, broadband, instant messaging/data sharing markets. With e-commerce newly arrived in India and the government focus on broadband access, we hope to generate and expand a number of new/traditional revenue streams across our growing international telecoms business.

We have New Call, the sixth largest provider of broadband in England. We achieved that very quickly by being deft and nimble in a competitive and fast changing market. We are a virtual operator, so we don’t have huge infrastructure. We know how to operate without owning the infrastructure. We are the best value for money broadband provider in the UK. We see a huge opportunity in India.

The incumbents in India are very, very focused on mobiles. They have sunk billions into the licences and the infrastructure. And of course, they are all fighting for market share. The real great opportunity in our view is broadband. In India it is lower than in Africa. And broadband not just in the home and office, but also in public spaces which is what we particularly want to concentrate on. We want to do that by using other people’s infrastructure.

We are not competing with the large mobile companies. We want them to get into business opportunities that they would not have otherwise got into. That’s what we are doing.  We are in new areas of the digital economy. We faced a similar regulatory environment in the UK. We have managed to compete with BT and Virgin on their home ground. We can partner with the big operators like in the UK.

What do you offer in the UK?

We offer access to broadband at a value for money that other providers cannot provide. We offer connectivity to people who are not connected still in the UK. Here, it is massive. So the opportunity here is huge compared to the UK. We have spent many, many months looking at the best companies to acquire. We don’t have any deals to announce yet. We wanted to do this before the change of government. We are excited by the 100 cities agenda of the government and its priority to get broadband into every village. We feel we can contribute.

Source: Bussiness World

Friday, November 21, 2014

India’s wireless tele-density reaches 74.55%: Trai

India's tele-density reached 76.55%, with the total subscriber base reaching 957.61 million that includes 569.56 million in urban and 388.05 million in rural regions, data on the sector regulator's website showed.

The number of telephone subscribers in India showed "a monthly growth rate of 0.61%," the Telecom Regulatory Authority of India said in its report.

The wireless subscriber base grew 0.6% to touch 930.20 million at the end of September, or a tele-density of 74.55%, while the wireline subscriber base declined from 27.52 million August to 27.41 million at the end of September, giving it a tele-density of 2.20%, the regulator said.

India's total broadband connections reach 75.73 million that includes 60.61 million urban subscribers, Trai said.

The regulator also added that 3.26 million consumers sought mobile number portability in the month of September while the cumulative requests increased to 132.81 million as of September-end, 2014.

Source: ET

Thursday, November 20, 2014

45% Indians will be on LTE by 2020: Ericsson Mobility Report

India is leading mobility growth globally and has the fastest growth for new mobile subscriptions with 18 million net additions in Q3 2014, according to the Ericsson Mobility Report. This is a substantial chunk of the 180 million connections added globally, just under rest of Asia (excluding China) and Africa as a whole, and largest for any country.

However, the most interesting aspect of this growth will be that by 2020, 45 per cent of the country’s population will be covered by LTE. At present the number under LTE in India is insignificant. By then, more than 95 per cent of the Indian population will be covered through GSM/EDGE technology, and over 90 per cent on WCDMA/HSPA networks, says the report. Globally, the growth of LTE will be at the cost GSM/EDGE, shows the report.

How the mobile landscape will change


The report says “mobile data user demographics are evolving fast in India, with mobile broadband starting to bridge the digital divide  between the rural and urban populations”. “Mobile data usage and services are becoming increasingly mainstream, with a growing proportion of people from lower-income groups now downloading apps and streaming video content from the internet using mobile devices,” it adds.

The report shows that mobile usage is becoming increasingly data driven. In fact, mobile broadband users now send 40 out of every 100 messages through instant messaging apps, rather than SMS, thanks to lower cost, ease of use, ease of content sharing, and a better overall user experience. Similarly, on an average, 3G smartphone users download 10 new apps per month, of which chat and gaming apps account for more than 35 percent

While 61 percent of mobile broadband users are more willing to pay extra for an improved indoor connectivity experience, 80 per cent of mobile broadband users in India want to pay more for rich experience indoors.

Source: Indian Express

Big Boost To Telecom As Ministries Settle Spectrum Issue

It has been the most contentious issue in the Indian telecom sector for years. Finally, there seems to be light at the end of the tunnel. That emerged after a meeting between the ministers - Defence Minister Manohar Parikkar and Communications Minister Ravi Shankar Prasad. The issue all along has been the vacation of 15MHz of spectrum in the 2100MHz band by the defence services. That band was auctioned for 3G services in 2010.

Basically what that means is that there will be a swap of spectrum between the two ministries in the 1900MHz and 2100MHz band. Once that happens, 15MHz of spectrum in the 2100MHz band would be provided to telecom service providers. That means three operators can get 5MHz each in the band to provide 3G services. That's critical for the sector since no operator currently has nationwide spectrum in the band. However, it will depend on the timeline adopted for swapping the spectrum.

The two ministries had initially agreed that the spectrum in the 1700-2000MHz band would be equally divided between the two, each getting 150 MHz. However, since the procedure for division wasn't decided it became a contentious issue.

The spectrum in the 1900MHz band had been reserved for providing telecom services using CDMA technology. However, over the years, existing CDMA operators - Tata Teleservices and Reliance Communications - became dual technology operators. There is only one pure play CDMA operator in Sistema Shyam, which offers services in nine circles. Also, there has been a steady slide in the number of CDMA subscribers in the country.

This move could prove to be quite beneficial for GSM-based operators like Bharti Airtel, Vodafone and Idea Cellular who have invested in 3G. As things stand, out of the 22 telecom circles, Bharti, Aircel and Reliance Communications offer 3G services in 13 circles, followed by Idea Cellular (11 circles) and Vodafone and Tata Teleservices (9).

That could mean that the government could conduct spectrum auctions in the 800MHz, 900MHz, 1800MHz and 2100MHz bands simultaneously. That decision would make it easier for operators to bid.

Source: Business World