Whatever happened to Wimax.

pollyantic

Seems to be no mention of Wimax anymore.
I thought that all of the wireless providers needed to go to Wimax or be left behind.
HAs it gone away?

cgarvey

pollyantic wrote:

Seems to be no mention of Wimax anymore.
I thought that all of the wireless providers needed to go to Wimax or be left behind.
HAs it gone away?

Just today in ENN http://url.ie/5p .. not gone away, just been delayed

pollyantic

Delayed for how long though.

jbkenn

pollyantic wrote:

Seems to be no mention of Wimax anymore.
I thought that all of the wireless providers needed to go to Wimax or be left behind.
HAs it gone away?

Not gone away, just has'nt arrived yet.

from here http://www.reed-electronics.com/

Thus, everyone is writing and talking about WiMAX. Unfortunately, too much of it is hype and misinformation. For example, some companies are claiming to be already shipping WiMAX equipment, while others are claiming that their gear is "WiMAX compliant" or "WiMAX ready." Currently, while there are pre-WiMAX applications that can be upgraded via hardware and/or software in preparation for WiMAX Forum certification, so far here in the first quarter of 2005, there are no WiMAX Forum Certified products on the market.

jbkenn

Capt'n Midnight

I posted in elsewhere that tokoyo are getting 600 wimax base stations for only €12m (it's bigger than dublin so we'd cost less) but if you look at who is in the Irish wimax lineup, there are all the telco's that need to recoup on 3G, can't see that lot doing anything cheap

SkepticOne

I could see the likes of Eircom getting into wimax. Their purpose, however, would be to dominate and monopolise the platform. This would be true of the mobile firms too.

For the benefits to be seen by consumers, it must be done by a company without a lot of existing revenue streams that would be cannibalised by wimax.

thegills

Esat BT are trialling WiMax in Scariff, Co. Clare. Methinks it could be extended into nearby towns. CPE's are very expensive so don't hold your breath for a trial package.
thegills

Dero

Irish Broadband & Intel still have their trial going in Leixlip and O2 in conjunction with Alvarion supplier Siemens are also trialling Wimax gear in Donegal. I'd like to see some more info on these, especially Paul Doody's comments re cracking the non line of sight issue.

bealtine

Fixed operators to lead WiMAX adoption

WiMAX is expected to revolutionise the fixed wireless broadband (FWB) market, but will mainly be a solution for fixed carriers, according to the new 'Positioning WiMax: How WiMax Stands Up To DSL, Cable, Wi-Fi and 3G' report from Pyramid Research. A survey from the report revealed that industry players expect WiMax to be deployed largely by fixed operators and ISPs to provide backhaul and high-speed internet access. Respondents are also optimistic about WiMax's future potential as a mobile solution. WiMax and cellular convergence will have to wait until 2007, when the 802.16e next-generation WiMAX comes to market. The number of WiMax subscribers will reach 10.9 million by 2009, most on 802.16d networks. 802.16e customers will show a 64 percent CAGR between 2009 and 2012.

popinfresh

Forgive the stupid question, but how fast can we expect Wi-Max to be?? It doesn't say anywhere

SkepticOne

From here.

Wimax: Also known as 802.16a. Worldwide Interoperability of Microwave Access is what WiMax stands for. WiMax is a lot like Wi-Fi, but unlike Wi-Fi's typical 150-foot range, WiMax has a range of up to 30 miles, (but typically about one to three miles in a city and up to 10 miles in rural areas), offering a way to bring the Internet to entire communities without having to invest billions of dollars to install phone or cable lines (last mile connectivity). WiMax greatly improves non-line-of-sight performance, and it is the most appropriate technology available when obstacles such as trees and buildings are present. WiMax has adaptive modulation support, which allows for trade-off of bandwidth for range to reach customers up to 30 miles away. In a typical cell radius deployment of three to ten kilometres, WiMAX Forum Certified™ systems can be expected to deliver capacity of up to 40 Mbps per channel (sometimes 70 Mbps), which is enough bandwidth for thousands of residences to use DSL type speed connectivity.

The 40 to 70 Mbps is the bandwidth for the whole cell. Presumably it can be split up any which way. We will have to wait and see what the typical packages are when the services officially launch under the standard.

Blaster99

“With WiMax we are looking at a throughput of around 70Mbps, potentially eliminating the contention ratio issues that dog subscribers of DSL services,” Doody said.

What?

popinfresh

Does that mean it's 70Meg divided between every1 in a 3-mile radius. Cause that's not really that great..

SkepticOne

popinfresh wrote:

Does that mean it's 70Meg divided between every1 in a 3-mile radius. Cause that's not really that great..

Yes although the radius can be a bit larger than that. If you want to provide 2mbit broadband at a contention of 24:1 then each cell will support 840 users theoretically.

crawler

SkepticOne wrote:

Yes although the radius can be a bit larger than that. If you want to provide 2mbit broadband at a contention of 24:1 then each cell will support 840 users theoretically.

And if you had 6 sectors (cells) on a base station = 5040 users per station...and 420Mbps of bandwidth...

Urban Weigl

Blaster99 wrote:

“With WiMax we are looking at a throughput of around 70Mbps, potentially eliminating the contention ratio issues that dog subscribers of DSL services,” Doody said.

Doody doesn't know what he is talking about: ADSL/ADSL2 technology offers dedicated capacity to each and every customer going into the telephone exchange, from where there is virtually unlimited capacity (fibre). WiMax offers 70Mbps shared between all customers.

So no, it does not elimate the contention ratio issue. In fact, it makes it worse. A whole lot worse.

Capt'n Midnight

popinfresh wrote:

Does that mean it's 70Meg divided between every1 in a 3-mile radius. Cause that's not really that great..

I haven't looked into how WiMax handles collisions and poor signals, but for 802.11b/g if your signal is poor then you can fall back from 54Mb back to 1Mb and everyone else on the same AP has to wait for your packet be communicated. This means that a few users with marginal coverage can cause more contention than someone with a good signal using many times more traffic.
Also unless the AP designates in which sequence the clients talk you could have two clients sending at the same time, result neither get through and both have to retry a random time later, control of this is one of the main selling points of multi node propritery wireless systems.

Sectorised panels means more zones per tower, it's a question of how much they are prepared to pay for the infrastructure. By enforcing a cap that restrict's the overall bandwidth used by customers they could save a fortune on the roll out.

bminish

Capt'n Midnight wrote:

Sectorised panels means more zones per tower, it's a question of how much they are prepared to pay for the infrastructure. By enforcing a cap that restrict's the overall bandwidth used by customers they could save a fortune on the roll out.

Clearwire (a pre WiMax WISP in the US ) have some interesting policies on certain services
http://www.advancedippipeline.com/159905772

.Brendan

jwt

Urban Weigl wrote:

ADSL/ADSL2 technology offers dedicated capacity to each and every customer going into the telephone exchange, from where there is virtually unlimited capacity (fibre).

I thought the exchanges used a 2 meg pipe back?

John

SkepticOne

jwt wrote:

I thought the exchanges used a 2 meg pipe back?

John

Whatever backhaul the telcos use is down to them. The DSL technology doesn't itself enforce contention.

eircomtribunal

bminish wrote:

Clearwire (a pre WiMax WISP in the US )..

and also in Ireland, see http://www.clearwire.ie/
I think they bought quite some of the 3.5 gig licenses.
P.

bminish

eircomtribunal wrote:

and also in Ireland, see http://www.clearwire.ie/
I think they bought quite some of the 3.5 gig licenses.
P.

I was aware of that, It will be interesting to see if they try the VoIP blocking stunt in the Irish market

.Brendan

SkepticOne

Clearwire.ie had a bit of content on their website a little while back. Now they just appear to have a broken link.

Dero

They still have the same content (including the map of Brussels ) on their homepage, the page is just broken. You need the home.html to make it work. I e-mailed them a while back about launch dates for Newbridge, for which they have a 3.5GHz license, and they said ask them again in June.

zod

good article here : http://www.tomsnetworking.com/Sections-article103.php