Monday, March 26, 2012

3G EV-DO or How the Internet Got Its Wings!

The Internet, as most people know it, is history.

It just seems like yesterday the Internet was just one
big mass of wires and cables; a glorified file sharing
warehouse with more than a few too many lines sticking out.
One enormous LAN party that just got out of hand, causing a ruckus
and spilling out down the block and around the world; creating too
many millionaires for no good reason and causing too many sleepless
nights surfing the neon pink.

The Internet quietly crept into every facet of our lives...
no subject or topic was left unexplored in this binary medium.
Suddenly, there it was, the authority on everything. Our lives
encyclopedia-ed to death by bits and bites.

But the Internet has always been perceived as a connected medium;
tied together by cables, servers and networks. Until now that is,
because now everything has changed. And it's about time, the Internet
has been tied to the ground for far too long, it's time for
liberation. Independence Day. Bring it on!

The Internet is going Wireless -- for real this time.

There were a few false starts; you can Bluetooth yourself silly,
but you won't get much further than 30 feet or so. The BlackBerry
is great but a little limiting. And Wi-Fi services have been around
for a long while but those were not really convenient, if you have to
find something; it's not convenient. Finding a 'hot spot' is the
space age equivalent of finding a 'needle in a haystack'; takes
way too much time.

What changes things, what has finally given the Internet its
liberation?

Verizon Wireless 3G EV-DO (evolution-data optimized) and other
companies offering similar services around the world. This new
technology will change how we view and use the world wide web.
Verizon Wireless began commercial operations in Oct. of 2003 and
is now expanding to over 125 million US consumers by the end
of 2005.

With download speeds of 400 to 700 kbps and bursts up to 2 Mbps,
3G has really given us wireless Internet this time. It has or will
turn the Internet into a truly wireless system that's devoid of any
cables or lines and really make it omnipotent. It will be everywhere.
No space within our biosphere will be without the Internet very soon.

For now Verizon Wireless or 3G is mainly located in the USA but
this will quickly change as other 3G companies and systems start up
to fulfill the demand. Wi-Fi may play a role too but will it go the
way of the 'Beta'?

However, this wireless universe could not be possible without one other key
element. The one element that also helped give the Internet its wings.
The answer might or might not surprise you. What really gave the Internet
its groove? Can you guess? Give up?

Finally, we come to the last element of this brand new liberated
Internet -- the little notebook computer. Don't underestimate the
power of this great little revolutionary device, it is doing for
the Internet what the cell phone did for the phone industry -- making
it wireless, portable, and accessible anywhere.

It could even be argued that it was the little notebook computer
that gave the Internet its freedom. Finally cutting the cable and
freeing the web, once and for all.

Once we had a portable computer that we could tuck under our
arm and take anywhere; we naturally wanted to take the Internet
along with it. After all, a computer without the Internet is like
having Mickey Mouse without Disneyland -- a real downer -- any kid
can tell you that!

Once the notebook or laptop computer gained in popularity, the demand
for a wireless Internet grew right along with it. The portability
factor being a strong selling point for both the notebook and the
Internet.

Likewise, in order to take full advantage of each of them; for
business operations, for personal communications, for emailing, for
web surfing... a wireless portable Internet was the obvious
next step. They compliment each other perfectly and one is not
completely whole without the other.

Technology has created this unholy trinity (the Internet, wireless
connections and the notebook computer) to fulfill our need for a portable
communication system that we can take and access anywhere. Until now,
the Internet was limited, tied to cables and wires...it never really
got off the ground!

But watch out; the cables are cut, the training wheels are off, the
bells are starting to ring real fast and this child has found its groove.

Every time a notebook opens, the Internet gets its wings!


Internet Service Providers

Internet Service Provider or ISP is a company that provides access to the Internet.

Before choosing an ISP, it is important to assess your company's business and marketing goals. You should find out what your organization will be using the Internet for. Once you've determined this, you can contact ISPs that serve your geographic area and ask them about their services. Those questions below will help you better understand that your local ISP offers.

Technical Questions About Reliability

1. Does the connection work at all hours of the day?

2. When are you busiest?

3. Does the connection support the speeds/types of hardware/software you want to use? Have specific questions to ask them. Know your operating system and the software that you need to use. Does the provider support 56K? Does it use the U.S. Robotics' x2 or Rockwell/Lucent's K56flex standard or both of them?

Technical Support and Troubleshooting

1. Is support part of normal service or an added cost?

2. What are the hours of coverage for network operations?

3. Is telephone support available via a local call, 800 number, or long distance?

4. Is there technical help available via e-mail? If yes who answers the questions and how soon?

5. Is there help and/or manuals available online?

6. Is there a user-friendly interface to Internet resources?

7. What software is provided and/or required?

8. Are the Internet tools that you need (such as e-mail, telnet, FTP, Usenet/News, Gopher, WAIS, WWW, or Lynx) available?

Business Arrangements and References

1. Are free trial connections available?

2. What local and 800 phone numbers are available for you to use?

3. Can multiple users access the same billing account simultaneously?

4. Can multiple user IDs/mailboxes use the same billing account?

5. Are there surcharges for any types of connections or particular hours of the day?

6. What kind of contract or services agreement is required?

7. What options are available for billing and payments? Discounts for pre-payments?

8. Are there refunds for early termination or if service is not satisfactory?

9. Are there any options that will reduce (or increase) your costs?

10. Are group discounts available? (Start your own group!)

11. After placing an order, how long does it take to make the connection active?

12. Are there charges for file storage?

13. Is space for Web pages included?

14. If you travel and want to access the Internet while you are on the road, ask about accessing your ISP from the cities you visit.

15. How long has the provider been in business?

16. Can you get answers to your questions in writing?

17. Ask for names of two to three similar users and check with them regarding their experience.

Some DSL Broadband Definitions

Often too many people get confused with all the definitions, here we have explained in easy to understand terms.

ADSL:

Asymmetric Digital Subscriber Line - asymmetric meaning it's faster downstream than upstream.

ASAM:

Advanced Services Access Manager -Whether you have a DSLAM or ASAM in your exchange doesn't really matter. They do the same thing. See DSLAM's as well.

ATM:

Asynchronous Transfer Mode - a method of encapsulation which is capable of many virtual circuits. With these, providers (ISP's) can split an ATM connection (155Mbit or 622Mbit) up into many connections. ATM isn't just used for DSL but in the case of DSL it's used to provision each customer.

Contention Ratios:

A contention ratio is the number of users to xMbit of bandwidth. For example some providers offer 2Mbit DSL, with a ratio of 50:1, meaning 50 users to 1Mbit of bandwidth.

CPE:

Customer Premises Equipment, the term that describes the equipment used on the customer end of a connection, for example your DSL modem/router or cable modem.

DSL:

Digital Subscriber Line.

DSLAM:

Digital Subscriber Line Access Multiplexer - They are placed in DSL enabled Telecomm exchanges, when your modem syncs up and the DSL light comes on, it means you are connected. When data travels down your connection, it goes from the CPE -> DSLAM -> RAN -> ISP

ERX:

Edge Routing Exchange. See RAN.

IPNet:

Telecommunications backhaul networks for carrying traffic from the customer to the ISP, i.e. carrying traffic from RAN's to ISP's.

Ping or Latency:

A ping measures the time in milliseconds that it takes for a packet to travel from your computer to a remote computer and back to you again. Just because you can't ping a given host, quite a lot of providers are beginning to filter ICMP (pings come under this protocol) traffic because it is commonly used to attack hosts and wastes a lot of bandwidth.
Many providers also give low priority to ping (ICMP) traffic which may mean your ping at a command line isn't very good, but in say a game, things may be fine.

RAN:

Regional Access Node These aggregates many DSLAM's connections and then feed the data to an ISP

RTT

Round Trip Time - the time it takes in milliseconds for a packet to go from A to B and back again. See ping.

SDSL

Symmetrical Digital Subscriber Line - symmetrical meaning the same speed up and down.

Units

There is a major difference between UPPER and lowercase

MB = MegaBytes

Mb = Megabits

kB = KiloBytes

kb = Kilobits

MB/s = MegaBytes per second

Mb/s = Megabits per second

kB/s = KiloBytes per second

kb/s = Kilobits per second

There is 8bits to a Byte, 8kb = 1kB

1Meg connections only transfer at 128kB/sec
or an 8Mb connection only transfers at 1024kB/sec or 1MB/s