• Downloads
  • ! Read Me !
  • Μαθήματα
  • Φοιτητικά
  • Τεχνικά Θέματα
  • Συζητήσεις
  • Happy Hour!
  • About THMMY.gr
 V  < 
Search:  
Welcome, Guest. Please login or register.
August 17, 2025, 00:12:36 am

Login with username, password and session length
Links
  Thmmy.gr portal
   Forum
   Downloads
   Ενεργ. Λογαριασμού
   Επικοινωνία
  
  Χρήσιμα links
   Σελίδα τμήματος
   Βιβλιοθήκη Τμήματος
   Elearning
   Φοιτητικά fora
   Πρόγραμμα Λέσχης
   Πρακτική Άσκηση
   Ηλεκτρονική Εξυπηρέτηση Φοιτητών
   Διανομή Συγγραμμάτων
   Ψηφιακό Καταθετήριο Διπλωματικών
   Πληροφορίες Καθηγητών
   Instagram @thmmy.gr
   mTHMMY
  
  Φοιτητικές Ομάδες
   ACM
   Aristurtle
   ART
   ASAT
   BEAM
   BEST Thessaloniki
   EESTEC LC Thessaloniki
   EΜΒ Auth
   IAESTE Thessaloniki
   IEEE φοιτητικό παράρτημα ΑΠΘ
   SpaceDot
   VROOM
   Panther
  
Πίνακας Ελέγχου
Welcome, Guest. Please login or register.
August 17, 2025, 00:12:36 am

Login with username, password and session length

Αναζήτηση

Google

THMMY.gr Web
Πρόσφατα
Τα παράσιτα ανάμεσά μας
by Nikos_313
[August 16, 2025, 23:14:02 pm]

[Τομέας Ηλεκτρονικής] Μαθ...
by abunchofcells
[August 16, 2025, 19:42:36 pm]

[ΑΝΤΙΣΤΑΣΗ] Ανακοίνωση γι...
by Nikos_313
[August 15, 2025, 14:44:38 pm]

Καλημέρα-νύχτα τόπικ
by Nikos_313
[August 15, 2025, 12:03:34 pm]

[Η/Μ Πεδίο I] Γενικές απο...
by Nikos_313
[August 15, 2025, 12:03:09 pm]

[Διανεμημένη Παραγωγή] Γε...
by Nikolaras
[August 14, 2025, 15:11:44 pm]

Ιντερνετ (Inalan ή HCN)
by alexiosmara
[August 14, 2025, 12:23:55 pm]

ΕΡΑΝΟΣ για μελη της ΑΝΤΙΣ...
by Nikos_313
[August 14, 2025, 08:36:14 am]

Χαρακτηριστικά Laptop
by femanak
[August 13, 2025, 21:03:22 pm]

Τεχνητή Νοημοσύνη
by Katarameno
[August 13, 2025, 20:48:54 pm]

Πότε θα βγει το μάθημα; -...
by Katarameno
[August 13, 2025, 20:41:32 pm]

[Ηλεκτρονική Ι] Γενικές α...
by Nikos_313
[August 13, 2025, 12:45:04 pm]

Ποιο τραγούδι ακούσατε 5+...
by Nikos_313
[August 13, 2025, 12:20:43 pm]

Ποιoς είναι ο πιο άκυρος ...
by Nikos_313
[August 13, 2025, 10:05:32 am]

Μου ήρθε το χαρτί!
by Saint_GR
[August 12, 2025, 17:22:42 pm]

Καλοκαιρινή προετοιμασία ...
by Katarameno
[August 12, 2025, 16:16:13 pm]

Τι ακούτε αυτήν τη στιγμή...
by Katarameno
[August 11, 2025, 20:59:23 pm]

Πρόγραμμα Σπουδών Ακαδημα...
by Nikos_313
[August 10, 2025, 19:05:04 pm]

Νέα Δημοκρατία (and Co. I...
by Katarameno
[August 10, 2025, 00:10:10 am]

Σιδηροδρομικό Δυστύχημα σ...
by Katarameno
[August 09, 2025, 19:46:52 pm]
Στατιστικά
Members
Total Members: 9998
Latest: kimpossible
Stats
Total Posts: 1427769
Total Topics: 31744
Online Today: 113
Online Ever: 2093
(April 17, 2025, 08:47:49 am)
Users Online
Users: 16
Guests: 86
Total: 102
tpt
alexter
tmpadasn
m.renia
stefanos hios
George_RT
aachmet
abunchofcells
Minmaxeng
smith
ThanosTheTT
Napoleontas
chrisdardas
Εμφάνιση

Νέα για πρωτοετείς
Είσαι πρωτοετής;... Καλώς ήρθες! Μπορείς να βρεις πληροφορίες εδώ. Βοήθεια για τους καινούργιους μέσω χάρτη.
Κατεβάστε εδώ το Android Application για εύκολη πρόσβαση στο forum.
Ανεβάζετε τα θέματα των εξετάσεων στον τομέα Downloads με προσοχή στα ονόματα των αρχείων!

Νέα!
Η γραμματεία είναι ανοιχτή καθημερινά 12:00-13:30 Tongue
THMMY.gr > Forum > Ηλεκτρονικοί Υπολογιστές και Τεχνικά Θέματα > Περί Υπολογιστών... > Τηλεπικοινωνίες > Ασύρματα Δίκτυα (Moderators: chatzikys, PolarBear) > Bandwidth ή Pipewidth ???
0 Members and 1 Guest are viewing this topic.
Pages: [1] Go Down Print
Author Topic: Bandwidth ή Pipewidth ???  (Read 1747 times)
NetBuster
Μόνιμος κάτοικος ΤΗΜΜΥ.gr
******
Gender: Male
Posts: 1716



View Profile
Bandwidth ή Pipewidth ???
« on: September 14, 2006, 17:46:45 pm »

Gas-line broadband a pipe dream?
Idea has skeptics, optimists

By Paul Davidson
USA TODAY


So intense is the drive to deliver high-speed Internet service to American homes that entrepreneurs have seemingly tapped every conceivable pathway: fiber-optic cable, the air, even power lines.

Now the relentless pursuit for faster, cheaper broadband is leading to perhaps the last unclaimed conduit to your house: natural gas pipes.

Nethercomm, a San Diego-area start-up, says it has developed technology to send lightning-fast broadband and TV services via wireless signals through the pipes that deliver the fuel used to heat homes and fire up stoves.

Gas pipes serve 62% of U.S. households, says the American Gas Association. Broadband in Gas, or BIG, could give consumers a third high-speed option at low costs and speeds that far surpass today's phone and cable offerings. It also could bring fast Internet to unserved rural areas. But, so far, the idea has been met with both excitement and skepticism.

"It's been a Coke and Pepsi (battle) between cable and phone companies," says Nethercomm founder and CEO Patrick Nunally, 42, a veteran high-tech entrepreneur. "We're in a position to come in and provide real competition."

More important, Nunally says, the pipes could be used by pay-TV providers to compete with cable and satellite. In fact, he says, Nethercomm and local gas companies would lease the wireless spectrum to any provider for myriad services: cable giants seeking extra bandwidth for their high-definition TV channels, phone companies looking to pare their multibillion-dollar investments in fiber-optic cable, even businesses such as medical providers with high-bandwidth needs.

Gas companies, besides earning revenue from leasing their pipes, could use the broadband service to remotely monitor the integrity of their lines and read gas meters.

"I think there is a general pulse of excitement" about the technology among publicly owned gas companies, says Bob Beauregard of the American Public Gas Association, which represents 650 gas providers serving 5 million rural customers.

Nunally says he hatched the idea in 2002 while searching for a new TV and broadband artery to the home that didn't require digging up streets. Around the same time, some California utilities were stringing fiber cable through gas lines to offer broadband. But the process was expensive.

Nunally says he had a "light bulb on the head" moment: wireless. Normally, the twists and turns of a gas pipe would cause wireless signals to lose strength. But ultrawideband, a new unlicensed wireless technology, sends out pulses of radio energy across such a wide swath of frequencies that if some data packets are lost, others can easily make it to the home.

Also, federal rules that limit the strength of ultrawideband signals don't apply in underground pipes(σημ. Wink). So, Nunally says, power levels can be boosted to provide each household bandwidth of up to 6 gigabits per second, several times that of a cable provider. Yet power is low enough so that signals can share the pipes with natural gas without starting a fire, he says.

A similar initiative, broadband over electric lines, is further along, with services offered in Manassas, Va., and Cincinnati and a rollout planned for Dallas this year. But the electric companies don't offer TV services and incur high costs to bend signals around transformers.

Broadband in Gas would require installation of an ultrawideband transmitter that's linked to an Internet backbone or pay-TV facility at a gas company's network hub. A receiver would be placed at a customer's gas meter. Build-out costs are about $200 per household, Nethercomm says. By contrast, broadband over power lines costs about $600 per household, while phone and cable TV networks each cost well over $1,000 per home to build, says West Technology Research Solutions.

Broadband in Gas "really has the potential to accelerate adoption of these technologies," says George West of West Technology.

Yet some say BIG is, well, a pipe dream. "It's really easy to make these kinds of claims, but it's much harder to prove in practice," says JupiterResearch analyst Joe Laszlo.

Nunally says the company, which has tested the service, plans field trials next year in San Diego, Chicago and Atlanta. But officials of Nicor Gas in Chicago and Atlanta Gas Light say they have no such plans.

"We're intrigued by the technology, but we never got that far in our discussions," says Nicor spokeswoman Margi Schiemann.

Nunally says BIG could sharply cut costs for companies such as Verizon Communications, which is spending $20 billion on fiber rollouts. Verizon and Internet provider EarthLink say they have no immediate plans to deploy it.

And Freescale Semiconductor, the ultrawideband company that was working with Nethercomm, recently shifted course to focus on its handset business. "It would be hard for anybody to say (BIG) doesn't have tremendous potential," says Freescale's Jon Adams.



USA TODAY





Η αληθεια ειναι οτι δεν ηξερα που να το βαλω...Στα ασυρματα δικτυα, στους ISPs ή μηπως σε τομεις ενδιαφεροντος ενεργειακων??
Για να μην μας κανει τον καμποσο ο καθε ενεργειακος  Tongue Tongue  το εβαλα στα ασυρματα...
Εκτος και αν φτιαξουμε board σωληνωτα δικτυα.. Cheesy
« Last Edit: September 14, 2006, 17:49:38 pm by NetBuster » Logged
BOBoMASTORAS
Veteran
Καταστραμμένος
******
Posts: 6082


It just doesn't get any easier! It gets worse...


View Profile
deleted
« Reply #1 on: September 14, 2006, 18:21:53 pm »

deleted
« Last Edit: June 14, 2015, 21:59:54 pm by BOBoMASTORAS » Logged

Της γενιάς μου βασιλιά,
μην κατέβεις τα σκαλιά.
Πιες αθάνατο νερό
να νικήσεις τον καιρό.

http://tools.ietf.org/html/rfc1149
The only reason we invent robots
fugiFOX
Veteran
Καταστραμμένος
******
Posts: 8962


Fugi+Fox μια νέα μορφή ζωής...


View Profile
Re: Bandwidth ή Pipewidth ???
« Reply #2 on: September 14, 2006, 18:23:12 pm »

σιγά την τεχνολογία ρε συ.
Αντι να μεταφέρουν το σήμα από π.χ. τους αγωγούς τιης ΔΕΗ το μεταφέρουν απο τους αγωγούς της ΔΕΠΑ
Logged

http://www.mozilla.org/en-US/firefox/new/
BOBoMASTORAS
Veteran
Καταστραμμένος
******
Posts: 6082


It just doesn't get any easier! It gets worse...


View Profile
deleted
« Reply #3 on: September 14, 2006, 18:30:06 pm »

deleted
« Last Edit: June 14, 2015, 21:59:51 pm by BOBoMASTORAS » Logged

Της γενιάς μου βασιλιά,
μην κατέβεις τα σκαλιά.
Πιες αθάνατο νερό
να νικήσεις τον καιρό.

http://tools.ietf.org/html/rfc1149
The only reason we invent robots
fugiFOX
Veteran
Καταστραμμένος
******
Posts: 8962


Fugi+Fox μια νέα μορφή ζωής...


View Profile
Re: Bandwidth ή Pipewidth ???
« Reply #4 on: September 14, 2006, 18:44:53 pm »

Εμένα δε μου φαίνεται για κάτι το τόσο επαναστατικό.
Ίσως και να οφείλεται βέβαια στο ότι δεν γνωρίζω πολλά από την περιοχή.
Ολύμπιε που είσαι;
Logged

http://www.mozilla.org/en-US/firefox/new/
Pages: [1] Go Up Print
Jump to:  

Powered by SMF | SMF © 2006-2009, Simple Machines LLC
Scribbles2 | TinyPortal © Bloc | XHTML | CSS
Loading...