[Equipment] open source/open hardware wireless optical network
Hi, interesting news from our slovenian friends:
The idea for KORUZA has first been introduced on International Summit for Community Wireless Networks IS4CWN 2012 in Barcelona
Re: [Equipment] open source/open hardware wireless optical netwo
1gbps over 100 metres.
I would be interested to see the power usage requirements.
If it only requires 3 watts of power, you could daisy chain them as they say (on client rooftops) - but instead on power poles down a street with a solar panel and mid size battery to avoid mains power connection costs.
Otherwise the daisy chaining on client rooftops as suggested would be difficult in most places because if one client disconnects from the network, you break the chain.
Thats what I thought, daisy chain on poles with battery and small solar but only 100m, optimally 10 for every kilometre, 100 for 10 km, seems like a lot and again the solar issues could easily break the chain if a battery didnt get charged.
EDIT I lied, 20 for every KM, 200 for 10km.
Probably easier to just put up a strand and fibre
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|reply to dadaniel |
If you were running it along a power pole path - where i live, you could either
- power it with solar
Has a set price for each site with bi-annual battery replacment if designed well
- power it using the mains cabling above
Cost of $500 per connection + installation of a transformer if needed per 100m
Daily usage charge per metered power connection (ICP) of $1.75 plus maybe $2 per month in actual power usage.
You could share ICP's with maybe 5 repeaters by running a cable to power two units away from the ICP. In this case, you might as well run cat5 and inline gigabit repeaters with less build cost.
- just run fibre
Only needs an ICP at each end
However no midway transmitters for wifi to the nearby homes
tricky to make this work to be honest. Depending upon the product pricing, it might just be better to use 5ghz wifi backhaul with higher reliability in periods of fog or rain, even with the cost of the speed loss
lutful... of ideasPremium
|reply to dadaniel |
RONJA was a similar open source project using 10Mbps laser from Ethernet market.
I actually suggested updating that with gigabit laser modules back in Feb/2009.
»Thinking out of the box ... Gigabit PTMP?
I have seen 60Ghz chip-scale antenna technology that brings down cost below $1000. And those RONJA folks could try off-the-shelf medium-range GigE laser modules which have come down in price.
Many companies have tried but NONE have managed to bring down price of optical links to WISP gear ball park. »FSO (optical) backhaul links
*** 60Ghz holds more promise for cost reduction and fiber-like throughput.
The Federal Communications Commission (FCC) has changed its rules to allow higher-power outdoor operations on the 57-64 GHz band, enabling wireless transmissions "over distances up to a mile at data rates of 7Gbps," the agency said.
FCC watcher Harold Feld, senior vice president of Public Knowledge, told Ars that these transmissions will be "[g]ood for links around natural breaks in terrain or building to building in urban areas. In rural areas, they put these on grain silos."
|reply to raytaylor |
You could mesh them at 1 gbps using omni antennas or multipoint arrays.