03.17.09

CogNeA Updates

Posted in CogNeA, companies, standards, white space at 3:51 pm by JamesNeel

(link) CogNeA is pushing their standard into ECMA.

CogNeA contributed its specification to Ecma’s TC48-TG1 that will further develop it and plans to finalise the 1st edition for publication by the end of 2009. The Standard comprises Physical (PHY) and Medium Access Control (MAC) layers that include interference-avoidance mechanisms. The Physical layer, interference-avoidance and cognitive radio technologies, will be specified such that other wireless networking standards, looking to operate in the TV whitespaces, can use it.

(link) Wi-Rider is a new Georgia Tech spin-out that looks like it’s coupling a REM-like collection of databases with a networked centralized manager for radio resources. Here’s their tech brief. Based on their website’s presentation, I think this is intended as a piece of CogNeA.

03.12.08

3 MANET Drafts and an RFC Published

Posted in standards, Uncategorized at 10:18 am by JamesNeel

Speaking of MANETs, the IETF MANET working group published 3 drafts and an RFC. An overview of the publications is given here:

Of the three new Internet Drafts, one is on a neighborhood discovery protocol that allows nodes to discover and work with nodes one and two hops away. A second one is about how to build a packet format capable of carrying multiple messages. A third one, about the Management Information Base, describes a set of tools for configuring and managing routers on a mobile network.

In addition, IETF approved “Jitter Considerations in Mobile ad-Hoc Networks” as a Request for Comment (
RFC 5148). This work suggests ways to randomly vary packet transmission times in order to avoid packet collision. Internet Drafts are submitted to IETF for consideration as standards. Once approved, they become RFCs.

Also, apparently as part of the meeting, there were demos of variations on OLSR (I have no details on exactly what was implemented).

In the context of cognitive radio, view the drafts as new sets of processes that can be leveraged to make observations, distribute information, and control platforms (particularly useful in a cognitive network implementation). The RFC should similarly provide points to make observations and control device operation (transmission timing in particular).

02.26.08

Putting xG on the Falcon III

Posted in standards at 10:23 am by JamesNeel

Washington Technology announced that Shared Spectrum’s xG technology (DSA) is going to be ported to the Harris Falcon III radio for proof-of-concept and feasibility analysis as part of an extension of the DARPA xG program.

That’s interesting because I thought that was already going on as I had heard some second-hand reports of initial performance testing results from a couple different sources. So maybe it’s progressed far enough now that they’re wanting to advertise a little.

10.22.07

IEEE Technical Subcommittee on Cognitive Networks

Posted in standards at 1:29 pm by JamesNeel

They now have a website hosted out of USF. Of particular interest is their call for papers page and their links to cognitive standards.