CogNEA Update

Posted in CogNeA, CRWG - cognitive radio work group, white space, white space test group at 6:24 pm by JamesNeel

Pat Carson from TDK gave a short presentation on CogNEA today at the SDRF CRWG / Secondary Spectrum Test Group joint meeting and said the information was for public consumption, so here’s some info in addition to the earlier press release.

1) CogNEA is basically the technical side of the White Space Coalition (the lobbying side). (TDK was a member of the WSC)

2) CogNEA is nominally now “open” for membership, but the new membership process has not been defined.

3) The standard CogNEA is developing defines a PHY, a MAC, and the extent of the cognitive capabilities is geolocation + sensing. Unlike the 802 ECWS plans, there is no current plan for the standard to have [explicit coexistence capabilities - ed, wow, I left that sentence unfinished for a week.]

4) CogNEA is intending this for the following applications: In-home High Definition MultiMedia (HD MM) but not wireless HDMI, Networking and distribution solutions that overcome the whole home coverage problems inherent to solutions using ISM bands, Internet Access for communities, neighborhoods, campuses, Ad-Hoc Mesh networks, Tele-health, Home automation and control. Currently these are handled by different standards (e.g., Zigbee, WiFi, Bluetooth) but the PHY is intended to handle everything (basically WLAN and smaller).

5) The Standard was at V0.70 the last time Pat checked, but it may have been updated at the ECWS meeting (the CogNEA meetings have been going on as sidebars at related meetings). The plan is to bring it to a SDO such as ISO in mid-2009.


Cognitive Radio Activities at SDRF / JSTeF San Diego Jan 09 Meeting

Posted in conferences, CRWG - cognitive radio work group, shameless self-promotion, white space test group at 12:58 pm by JamesNeel

The agenda for the next SDR Forum meeting has been posted. It’s in San Diego from January 26-30 and will be co-hosted with the JTRS Science and Technology Forum.

The following cognitive radio related activities will go on:

CRWG Meeting

The Cognitive Radio Work Group will be meeting primarily to continue putting together an extensive survey document on quantifiable benefits of cognitive radio for later use in ITU submissions and position papers as well as general evangelization on cognitive radio

White Space Test Group

The White Space Test Group will be meeting primarily to work on use case documents for input to the 802 ECSG on white spaces and for later SDRF development of test specifications for white space devices.

Meta-language for Mobility Work Group

I’m not certain what the MLM group will be doing as they just finished up a use case document (where can meta-languages help supprot cognitive radio). They generally coordinate with 1900.5 and may be working on specifications. (Oddly, I only have so many hours in the day and can’t participate in everything)

Public Safety SIG

While dealing with more general public safety comm / SDR issues, at least some of their meeting time will likely be used to work on their cognitive radio use case document (intended to help identify required technologies / insertion points).

Cognitive Radio JTRS SBIR Briefings

Shared Spectrum and CRT (us) will each give 20-minute briefings on our JTRS-sponsored Phase I SBIRs on cognitive spectrum management.

I’m not certain what they’ll speak on, but I figure it’ll be on policy and DSA. Their open abstract is here.

We’ll talk about distributed non-collaborative spectrum optimization / management of MANETs and what we did in Phase I (our open abstract is here). Besides the big benefits for managing an integrated network, we think our little algorithm suite will be particularly useful for coexistence of white-space devices running incompatible waveforms, so we might touch on that some too.


Quantifying the Benefits of Cognitive Radio

Posted in CRWG - cognitive radio work group at 10:55 am by JamesNeel

Yesterday, the SDR Forum Cognitive Radio Work Group agreed to proceed on our next project – survey the open literature to collect the reported quantifiable benefits of cognitive radio into a single white paper.

We’ll be reviewing papers from cognitive radio conferences, e.g., SDR Forum, DySPAN, CrownCom, workshops – e.g., the Microsoft workshop, the handful of cognitiveradiotextbooks, patents, and selected dissertations to identify algorithms and applications that have quantifiable benefits. For example, my SDRF 07 paper reports a distributed/uncoordinated cognitive RRM algorithm that produces a 16x gain in network capacity for unlicensed systems and Mark McHenry’s survey on spectral availabiltiy that reported that on average 10% of allocated spectrum was actually in use (though this varied significantly by band) implying that the application of DSA has an upper bound of a 10x gain in spectrum access.

We’re currently planning on organizing the results into a white paper broken down by targeted application area (e.g., spectrum management, interoperability) and by layer (e.g., cognitive routing). We think it’ll be useful for anyone getting up to speed on cognitive radio (e.g., those asking “why cognitive radio”), useful for regulators (e.g., we’re planning on using this white paper to update the SDRF ITU response on cognitive radio in May 09), and a useful reference for any cognitive radio researcher.

Since this is such a large undertaking, we’ll take help wherever we can get it. So if you would like to help out with this effort, here’s two ways you could help:

  • Leave a comment to this post that a) gives the citation information for a publication you think is relevant, b) describes the reported benefit, c) gives the application area. We’ll still have to read it ourselves and put the description in a format that flows with the rest of the white paper, but this will ensure we don’t miss the publication.
  • Note: if it’s not in the open literature, we don’t want it.

  • If your comment doesn’t appear immediately, don’t resubmit it. WordPress has a serious spam problem so I have to manually approve comments and I may not get around to reviewing comments until the end of the day. (There’s real work to do!)

  • Actively participate in the project. We have telecons alternate Wednesdays at 11:00 AM Eastern.
  • You (don’t have to be an SDRF member to participate in the project, but membership is required for voting purposes (e.g., when we move the document out of the group).

  • If you are interested and have time to contribute, email me (james DOT neel AT crtwireless DOT com).