Wi-Fi Mesh And WiMax

[Hobbisbang]

The options and what can be done?

Wi-Fi mesh and WiMax sevice are still young but what would a mutual network be like and how would it be funded?

Ideas and questions please?

[Fastethernet]

What would be the maximum speed that could be archived through a wireless link?

What density of access points would be suitable to provide ubiquitous access across the city?

What type of encryption would be used?

[Hobbisbang]

What would be the maximum speed that could be archived through a wireless link?

What density of access points would be suitable to provide ubiquitous access across the city?

What type of encryption would be used?

If you understand cryptography you will know its an algorithm meaning aslong as the Ap is caperbel of firmware upgrades it would be the strongest encryption available but it will change so making assumptions is not valid at the current moment
AP density is totally dependent on terrain in Toronto Canada its 16 per 1km sq.
Speeds are increasing but i would state each ap can be fed with 54mb this would decrease as th db falls but if the mesh is configured correctly a maximum of a 25% loss would be expectable.
Stormy said his main concern is latency but handoff and AP ms delay is currently down to 4ms per hop.

[miken]

What sized area would need coverage?

[Fastethernet]

WPA2 uses AES encryption which requires hardware support, so firmware updates wouldn't be of any use.

My concern would be dealing with high demand within dense residential areas, if you utilise 802.11a for back haul links then you only have 3 non overlapping frequencies within 802.11g, each only really supporting 20Mb speed and only half duplex connections. If there was a large number of users within a small area the AP would struggle to provide a decent speeds which then begs the question is a wireless mesh network really a step forward?

FttP is the way forward.

[Hobbisbang]

WPA2 uses AES encryption which requires hardware support, so firmware updates wouldn't be of any use.

My concern would be dealing with high demand within dense residential areas, if you utilise 802.11a for back haul links then you only have 3 non overlapping frequencies within 802.11g, each only really supporting 20Mb speed and only half duplex connections. If there was a large number of users within a small area the AP would struggle to provide a decent speeds which then begs the question is a wireless mesh network really a step forward?

FttP is the way forward.

Correct WPA2 and AES use Hardware support for the logical calculations its a simple cyfer chip as long as the processor has an open source code verifyer it can change modulation to cover 3des. and any floting point calcs.

Have a look at Belair systems might make you smile. expensive but Nortel kit allways is.

I dream of Fttp but its not going to happen.

[Hobbisbang]

If you miss it its on the belair modems they use WI-Max backhaul channels opening up the Wi-FI for less stress

[Fastethernet]

Very interesting website, its packed with some great white papers http://www.belairnetworks.com/

Still the speeds they talk about are between 1 and 8 Meg which are about the same as KCOM current offering (fair use policy to one side). The system will presumable need to stay in place for at least 10 years to get a return from the investment leaving the city with relativity low speed access network. When South Korea average internet connection is 45Meg and Stephen Timms is telling the government they need to invest in new fibre networks, Hull has to make that leap and be the first city in the UK to operate a community owned fibre network.

[dylan]

<snip>Stephen Timms is telling the government they need to invest in new fibre networks, Hull has to make that leap and be the first city in the UK to operate a community owned fibre network.

I think it's definately something that deserves more study. How about starting another thread in the alternatives forum about FttP ?

It would be sensible for us I think, to look at all of the ways we can address the problem. Through studying them, we can bash out strengths, weaknesses etc 

[chrisbyrd]

East Riding Telecom Ltd offer connections up to 100Mb 1:1, and up to 10Mb with standard pricing for Virtual Leased Lines and SDSL connections. The pricing is very competative, and where beneficial to ERT, we can also offer a cloud network allowing multiple SDSL connections on site.

This service is offered using Wi-Max type technology.

Maybe you could stop spamming the forum?