[OLSR-users] atheros openbsd free hal and full duplex radio in 802.11a?

[Jim Thompson]

Jeromie Reeves wrote:

>>> The main problem right now with OLSR is the half duplex layer of the
>>> radio, where bandwidth is decreasing after 4 or 5 hops.
>>
>> Can you solve this with two radios running in different bands? Part 
>> of this is also due to the CSMA/CA
>> nature of the MAC. Perhaps you and your friends could design a TDMA 
>> like MAC for use on top of
>> either the "openbsd" or "closed" HALs, and a method for syncronizing 
>> the clocks used in the MAC (note that I'm not talking 'ntp' here, 
>> much less the much-less stable (in terms of true time) implementation 
>> found in openbsd.)
>
>
> Mikrotik made Nstream and Nstream2. This drasticly alters the HAL's. 
> They have polling too.

Its not clear to me that HAL changes are required to implement an 
alternative MAC.   Nor is it clear to me that 'nstream' is much more 
than a simple slotted access protocol.

> That would not be good. Maybe a group could get together and obtain 
> the atheros source and produce a project from it?


If there was an alternative MAC effort for OLSR, (I think this would be 
a good thing), and it required HAL changes, then its very likely that I 
can find a way to get those done (as long as they don't violate the 
regulatory controls in the HAL, of course.)

Jim