Posted on June 26, 2008 by rasper
Mobile communication standards
GSM / UMTS (3GPP) Family
GSM (2G)
GPRS
EDGE (EGPRS)
EDGE Evolution
CSD
HSCSD
UMTS (3G)
HSPA
HSDPA
HSUPA
HSPA+
UMTS-TDD
TD-CDMA
TD-SCDMA
FOMA
UMTS Rev. 8 (Pre-4G)
LTE
HSOPA (Super 3G)
CDMA (3GPP2) Family
cdmaOne (2G)
CDMA2000 (3G)
EV-DO
UMB (Pre-4G)
AMPS Family
AMPS (1G)
TACS / ETACS
D-AMPS (2G)
Other Technologies
Pre Cellular
PTT
MTS
IMTS
AMTS
OLT
MTD
Autotel / PALM
ARP
1G
NMT
Hicap
CDPD
Mobitex
DataTAC
2G
iDEN
PDC
CSD
PHS
WiDEN
Pre-4G
iBurst
HIPERMAN
WiMAX
WiBro
GAN (UMA)
Channel Access Methods
FDMA
OFDMA
TDMA
SSMA
CDMA
Frequency bands
Cellular
GSM
UMTS
PCS
SMR
Filed under: mobile communication | Tagged: GSM, mobile | Leave a Comment »
Posted on June 26, 2008 by rasper
Global System for Mobile communications (GSM: originally from Groupe Spécial Mobile) is the most popular standard for mobile phones in the world.
Its ubiquity makes international roaming very common between mobile phone operators, enabling subscribers to use their phones in many parts of the world.
GSM differs from its predecessors in that both signalling and speech channels [...]
Filed under: mobile communication | Tagged: 3GPP, 3GPP2, CDMA, EDGE, GPRS, GSM, mobile | Leave a Comment »
Posted on June 25, 2008 by rasper
The economy of India, measured in USD exchange-rate terms, is the twelfth largest in the world, with a GDP in excess of $1 trillion (2008). It recorded a GDP growth rate of 9.0% for the fiscal year 2007–2008 which makes it the second fastest big emerging economy, after China, in the world. At this rate [...]
Filed under: economics | Tagged: GDP | Leave a Comment »
Posted on June 25, 2008 by rasper
Alternative Approaches to Calculating GDP
There are three approaches to calculating GDP:
expenditure approach – described above; calculates the final spending on goods and services.
product approach – calculates the market value of goods and services produced.
income approach – sums the income received by all producers in the country.
These three approaches are equivalent, with each rendering the same [...]
Filed under: economics | Tagged: GDP | Leave a Comment »
Posted on June 25, 2008 by rasper
The gross domestic product (GDP) or gross domestic income (GDI) is one of the measures of national income and output for a given country’s economy. GDP is defined as the total market value of all final goods and services produced within the country in a given period of time (usually a calendar year). It is [...]
Filed under: economics | Tagged: GDI, GDP, NDP | Leave a Comment »
Posted on June 24, 2008 by rasper
all about Indian system of inflation calculation, its flaws and ground realities…..
Filed under: economics | Tagged: CPI, inflation, WPI | Leave a Comment »
Posted on June 24, 2008 by rasper
All about inflation, its rise, the Indian System of calculating inflation and how it differs from the U.S. and other countries….
Filed under: economics | Tagged: economy, inflation | Leave a Comment »
