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Thursday, July 9, 2009

Better India Better World

Was googling today something and came across one good book to understand all my questions related to our responsibility for our country. and what can be the answers? We are youth of our nation and have more responsibilities on our shoulders. This book is pending in my list to read and to become more responsible for my nation.
Just sharing with you the abstract…..This book is written by N.R.Murty. (Icon of present India.)

Better India Better World:
With one of the highest GDP growth rates in the world and an array of recent achievements in technology, industry and entrepreneurship, India strides confidently towards the future. But, in the world's largest democracy, not everyone is equally fortunate. More than 300 million Indians are still prey to hunger, illiteracy and disease, and 51 per cent of India's children are still undernourished.

What will it take for India to bridge this great divide? When will the fruits of development reach the poorest of the poor, and wipe the tears from the eyes of every man, woman and child, as Mahatma Gandhi had dreamt? And how should this, our greatest challenge ever, be negotiated?

In this extraordinarily inspiring and visionary book, N.R. Narayana Murthy, who pioneered, designed and executed the Global Delivery Model that has become the cornerstone of India's success in information technology services outsourcing, shows us that a society working for the greatest welfare of the greatest number — samasta jananam sukhino bhavantu — must focus on two simple things: values and good leadership. Drawing on the remarkable Infosys story and the lessons learnt from the two decades of post-reform India, Narayana Murthy lays down the ground rules that must be followed if future generations are to inherit a truly progressive nation.

Built on Narayana Murthy's lectures delivered around the world, A Better India : A Better World is a manifesto for the youth, the architects of the future, and a compelling argument for why a better India holds the key to a better world.

Review comments of this book:
‘Narayana Murthy is a role model for millions of Indians. An iconic figure in the country, he is widely respected and looked up to not only for his business leadership but also for his ethics and personal conduct. He represents the face of the new, resurgent India to the world. I am sure this collection of his speeches will inform, inspire and guide many in the years to come.’
—Manmohan Singh, Prime Minister of India

‘Narayana Murthy overcame many obstacles and demonstrated that it is possible to create a world-class, values-driven company in India. Through his vision and leadership Murthy sparked a wave of innovation and entrepreneurship that changed the way we view ourselves and how the world views India. In this collection of his speeches, he delivers a timely message about the importance of values and leadership in business.’
—Bill Gates, Chairman of the Board, Microsoft Corporation


Sunday, July 5, 2009

LTE Introduction

Beyond 3G.
As we have seen in previous series of wireless telecommunication topics; After GSM(Global System for mobile communication)(2G) , HSPA is a 3G evolution of GSM supporting high-speed data transmissions using WCDMA technology.

In order to meet the continued traffic growth demands, an extensive effort has been underway in the 3G Partnership Project (3GPP) to develop a new standard for the evolution of GSM/HSPA technology towards a packet-optimized system referred to as Long-Term Evolution (LTE).

The goal of the LTE standard is to create specifications for a new radio-access technology geared to higher data rates, low latency and greater spectral efficiency. The spectral efficiency target for the LTE system is three to four times higher than the current HSPA system.

In parallel, new network architecture is designed with the goal to support packet-switched traffic with seamless mobility, quality of service and minimal latency.

LTE Introduction
While HSPA (High Speed Packet Access) and HRPD(High Rate Packet Data) systems were being developed and deployed, IEEE 802 LMSC (LAN/MAN Standard Committee) introduced the IEEE 802.16e standard for mobile broadband wireless access. The 802.16e standard employed a different access technology named OFDMA (orthogonal frequency division multiple access) and claimed better data rates and spectral efficiency than that provided by industry group named by WiMAX. (Mobile WiMAX also employed a similar network architecture based on IP Protocols.

The Introduction to Mobile WiMAX led both 3GPP and 3GPP2 to develop their own version of beyond 3G system based on OFDMA(Orthogonal Frequency Multiple Access) technology and network architecture similar to that in Mobile WiMAX. The beyond 3G system in 3GPP is called evolved universal terrestrial radio access (evolved UTRA) and is also widely referred to as LTE (Long-Term Evolution) while 3GPP2’s version is called UMB (ultra mobile broadband).
All three beyond 3G systems namely Mobile WiMAX, LTE and UMB meet IMT-2000 requirements and hence they are also part of IMT-2000 family of standards.

Now Stay tuned for Air Interface, Protocols, and Network Architecture for LTE. :)

1) Wikipedia,
2) couple of web search and blogs.
3) F. Khan, "LTE for 4G Mobile Broadband - Air Interface Technologies and Performance", Cambridge University Press, 2009