Hi,<br><br>I posted this in the openwrt forum as well. Thought I might as well stir the hornets nest a little more. Only the OLSR part is specifically relevant . Has anyone looked at multi-radio multi-channel support in the OLSR though???
<br><br>I'm trying to look at any open-source implementations for MCMR. If I do find I'll post it here. <br><br>Thanks,<br>Rajesh.<br><br>Here is the post <br>***************************<br>It just occured to me that there might be a possible for
supporting multi-radio multi-channel support in the OpenWRT platform.
Many mesh-networking companies typically tout multi-radio/multi-channel
support. <br><br>Here is a possible method by which three Linksys routers can be combined to support multi-radio multi-channel. <br><br>Methodology:<br>1. Hardware<br> - Put the three linksys (could be any other device) routers in Bridge mode.
<br> - The three routers are physically connected via the ethernet LAN ports <br> - Lets call these routers LS1, LS2 and LS3.<br> - I have tested the bridge-mode connection and works quite well<br> - Essentially provides a very wide Layer2 connection
<br>
- These three linksys routers can be stacked on top of each other
essentially providing 3 radios (you could use 2 for 2 radios)<br> - This will how a Node-group will look like <br> \ / <-- Radio1<br> Node1a<br> | <----------- Wired link
<br> \ | / <-- Radio2<br> Node1b<br> | <----------- Wired link<br> \ | / <-- Radio3<br> Node1c
<br><br>2. Software<br> - This is the secret-sauce that needs to be developed. The goal is:<br> - Launch it in each of the routers LS1, LS2, LS3<br> - Communicate among each other to know they are part of the same bridge
<br> - Have a channel allocation scheme for each router so they do not mutually interfere with each other.<br> - This needs to be a modular and scalable architecture so that nodes can be added to the stack in an on-demand basis.
<br> - The secret sauce could be developed either as a plugin for OLSR or for the spanning-tree-protocol implementation.<br>
- The STP implementation would mean that its one big layer-2 wireless
network with the node-groups forming some kind of non-loop network<br> - OLSR-plugin would obviously mean that all node-groups act as olsr-routers with intelligent channel assignment schemes.<br><br>3. References:<br>
*
While writing this post I did some web-search and looks like there is
already some activity that is similar to what I am suggesting - <a href="http://moment.cs.ucsb.edu/tic/">http://moment.cs.ucsb.edu/tic/</a><br>* (more references later)