[Mesh] Meeting Minutes 2/14

[Jenny Ryan]

Apologies for lateness!

=Attendees=
*Jenny, Marc Juul, Mark B, Bill, Eno

= Introduction =
*Applying for funding from OpenITP: https://pad.riseup.net/p/510penITPapp
*Wikipedia has some good info [
http://en.wikipedia.org/wiki/Wireless_mesh_networks here].
*See also: Mesh Projects Directory -
http://wiki.tidepools.co/view/Mesh_Directory

= Inventory =

== at sudo room ==
*Lots of coaxial cable.
*Some wireless routers that need to be checked for openwrt support.
*2 linksys routers which may be b0rked

== juul ==
*One Motorola C155 with osmocom-bb
*One USRP 1 software defined radio
:[https://www.ettus.com/product/details/WBX WBX 50-2200 Mhz rx/tx]
:[https://www.ettus.com/product/details/RFX2400 RFX2400 2.3-2.9 Ghz rx/tx]

== mark ==
*Three openwrt routers from [http://www.open-mesh.com/ open-mesh.com].

= hardware =

== RONJA laser link ==
[http://ronja.twibright.com/ The RONJA project] has 1.4 km range and 10
mbps full duplex.
Material costs are about $100, but it's not clear if that is per node or
per link (per two nodes).
It does not use off-the-shelf hardware, so construction requires some work.

== wifi routers ==
*Ubiquity nanostation
*Ubiquity picostation
*raspberry pi (or similar) + usb wifi adapters such as the [
http://dx.com/s/2000mW 2000 mW $20 chinese models] or even just [
http://dx.com/s/500mw 500 mW $20 chinese models]

== antennas ==
*[
http://dx.com/p/2-4ghz-100w-18dbi[http://dx.com/p/2-4ghz-100w-18dbi-directional-high-gain-18-unit-antenna-for-wifi-wireless-network-sma-3475918
dBi
-directional-high-gain-18-unit-antenna-for-wifi-wireless-network-sma-34759
18 dBi for $18] including shipping.

=== parabolic ==
[http://www.provantage.com/premiertek-ant-grid-24dbi~4PREK014.htm 24 dBi
for $26.40] expensive shipping when ordering only one though.

= Firmware and routing algorithms =
*Should we use off the shelf firmware, how should we r00t our r0uters?
*Commotion wireless uses OLSR, but the current nodes in the 510pen network
use the batman-advanced.
*Other projects like Project Byzantium (targetting laptops) use the Babel
protocol.
*Performance Evaluation of BATMAN, DSR, OLSR Routing Protocols - A Review
Sandhu and Sharma 2012:
http://www.ijetae.com/files/Volume2Issue1/IJETAE_0112_35.pdf
:    Maximum Number of nodes with Maximum Mobility: OLSR > BATMAN > DSR
:    Maximum Number of nodes with Maximum Packet length: OLSR > DSR >
BATMAN

'''Currently, 510pen uses NG firmware extending OpenWRT with batman-adv'''
*OLSRD Configuration & Management:
https://code.commotionwireless.net/projecthttp://www.olsr.org/?q=node/13s/commotion/wiki/OLSR_Configuration_and_Management?version=3

= Action Items =
*Bill will look into OLSR and routing generally
*Saturday node-repair field trip
**jenny will ping beau
*Bring things to set up a node at sudo room next week!
**jenny will ping mark b :P

Notes archived here: http://sudoroom.org/wiki/Mesh/14_February_2013

--------
Jenny
http://jennyryan.net
http://thepyre.org
http://thevirtualcampfire.org
http://technomadic.tumblr.com

`~`~`~`~`~`~`~`~`~`~`~`~`~`~`~`~`~`~`
 "Technology is the campfire around which we tell our stories."
-Laurie Anderson

"Storytelling reveals meaning without committing the error of defining it."
 -Hannah Arendt

"To define is to kill. To suggest is to create."
-Stéphane Mallarmé
~`~`~`~`~`~`~`~`~`~`~`~`~`~`~`~`~`~`
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