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Your half-duplex points literally do not apply to the librerouter. It has 2 separated 5Ghz radios and a separate 2.4 for local access. Before you tell others h

Your half-duplex points literally do not apply to the librerouter. It has 2 separated 5Ghz radios and a separate 2.4 for local access. Before you tell others how to build the network they already run, you might take 10 minutes to find out that they've managed to serve otherwise unconnected individuals and communities in remote parts of Argentina. Sure, this isn't cutting edge tech, but it's cheap, scalable, and easy to upgrade. If you want to help these projects, you can find a 802.11ac chip with FOSS drivers. Until that happens, their hands our tied. Sorry not sorry.

walrus01 8y ago
I'm sorry but you're grossly mistaken, the very nature of 802.11n based radios is that an individual (typically 20 or 40 MHz wide) air channel is a half duplex medium. I'm talking about each individual radio in the unit. The multiple clients connected to each AP-functioning radio are sharing a half duplex medium. I'm well aware of the existence of 802.11 (abgn/ac) based radios that have multiple independent air interfaces in them. You may wish to familiarize yourself with CSMA and listen-before-transmit issues, hidden node problems, etc in any half duplex air medium. I do this for a living. It's completely disingenuous to say that because some single board computer with multiple minipci slots has multiple 2.4 and 5.8 GHz radios mounted to it, linked to different things over their 802.11n air medium, that it's a "full duplex" radio. A full duplex radio by industry definition is something like a FDD-LTE implementation for PtMP, or a point-to-point FDD radio such as in the licensed 6, 11, 18, 23, 71-86 GHz bands, in which a pair of radios listen and transmit in a high/low pair of totally separate channels, dedicated to traffic each direction. I'm not telling people how to build their network. I'm sure this equipment is functional and providing service somewhere. I'm trying to prevent people in the year 2018 from chasing down dead ends of 8-year-old technology that will not be the most effective use of their time, effort and money.

walrus01 8y ago

I'm sorry but you're grossly mistaken, the very nature of 802.11n based radios is that an individual (typically 20 or 40 MHz wide) air channel is a half duplex medium. I'm talking about each individual radio in the unit. The multiple clients connected to each AP-functioning radio are sharing a half duplex medium. I'm well aware of the existence of 802.11 (abgn/ac) based radios that have multiple independent air interfaces in them. You may wish to familiarize yourself with CSMA and listen-before-transmit issues, hidden node problems, etc in any half duplex air medium. I do this for a living. It's completely disingenuous to say that because some single board computer with multiple minipci slots has multiple 2.4 and 5.8 GHz radios mounted to it, linked to different things over their 802.11n air medium, that it's a "full duplex" radio. A full duplex radio by industry definition is something like a FDD-LTE implementation for PtMP, or a point-to-point FDD radio such as in the licensed 6, 11, 18, 23, 71-86 GHz bands, in which a pair of radios listen and transmit in a high/low pair of totally separate channels, dedicated to traffic each direction. I'm not telling people how to build their network. I'm sure this equipment is functional and providing service somewhere. I'm trying to prevent people in the year 2018 from chasing down dead ends of 8-year-old technology that will not be the most effective use of their time, effort and money.