[Mesh] Meeting Minutes 2/14

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-directi… 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/c… = 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 ~`~`~`~`~`~`~`~`~`~`~`~`~`~`~`~`~`~`