Talk:Cognitive radio

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IEEE 802.15.2
AFAIK, IEEE 802.15.2 is not about a "Licensed Band Cognitive Radio-like system". Its main purpose is to give "best practices" for coexistence of WPAN (802.15) with WLAN (802.11) in the unlicensed radio bands. Thus, it may be an "Unlicensed Band Cognitive Radio-like system", but not a "Licensed Band Cognitive Radio-like system" ... 82.123.227.253 17:04, 8 September 2006 (UTC)

Bad link
The missing IEEE article is now at http://staging.spectrum.ieee.org/apr04/4220 ... D021317c 20:18, 13 December 2006 (UTC)

IEEE Standards Coordinating Committee 41 (Dynamic Spectrum Access Networks)
Scope

This Standards Coordinating Committee will develop standards related to dynamic spectrum access networks. The focus is on improved use of spectrum. New techniques and methods of dynamic spectrum access require managing interference, coordination of wireless technologies and include network management and information sharing.

http://grouper.ieee.org/groups/scc41/index.html . . . . Smartantennas (talk) 10:58, 25 December 2008 (UTC)

Merger proposal
I would like to propose that Cognitive Radios be merged into this article - Cognitive radio. The Cognitive Radios article has already been marked as an orphan, so it is a matter of retrieving any useful information from it and moving it here. Please give your reasons for/against below.Kgrr (talk) 14:40, 21 January 2009 (UTC)
 * For. The name should be in singular. Great that you discovered this. This is such an obvious case so I don't see any reason for waiting. Mange01 (talk) 14:21, 26 January 2009 (UTC)

This is a no brainer, the two should definitely be merged. —Preceding unsigned comment added by 91.9.56.203 (talk) 13:30, 28 March 2009 (UTC)

For. The name really should be in singular, and these articles are talking about the same thing. Totally obvious, for a merge. And for once. Decoy (talk) 20:08, 16 January 2010 (UTC)

Yes...this is obvious. Merge it. —Preceding unsigned comment added by Silvrstridr (talk • contribs) 15:25, 6 February 2010 (UTC)

I agree with the earlier opinions. It shoul be a 'singular' titled article- Radio not Radios. Moreover, since such an article exists describing the same topic, it should be merged. —Preceding unsigned comment added by Mabhijithn (talk • contribs) 07:22, 9 February 2010 (UTC)


 * I see no opposition to merging, so I went ahead and merged. --DavidCary (talk) 11:12, 20 July 2011 (UTC)

Licensed vs. Unlicensed spectrum
I don't understand these two categories: Licensed Band Cognitive Radio and Unlicensed Band Cognitive Radio. There are no "unlicensed" radio bands. Please provide references for this.

The 2.400-2.4835 MHz spectrum used by 802.11, 802.11b, 802.11g (Wi-Fi) and 802.15 (Bluetooth) is shared with licensed users. In parts of this band, the primary user is military radiolocation, specifically naval radar. In other parts, it's Amateur radio. Part of this band is shared with secondary licensed users - Amateur Radio (Part 97) and ISM (part 18).
 * The Amateur radio allocation goes from 2.390-2.450 GHz. Amateur radio operators have primary privileges to ISM devices from 2.390–2.417 GHz and secondary privileges from 2.417–2.450 GHz
 * The ISM band 2.400–2.500 GHz is governed by part 18. Part 18 ISM rules prohibit using ISM for communications.
 * Part 15 of the ISM band (2.400-2.4835 MHz) shares this band with the primary and secondary licensed users on a non-interference basis.


 * FCC Spectrum Allocation Chart
 * part 15 rules

Kgrr (talk) 15:28, 21 January 2009 (UTC)

Celluar based smaller cell
What is meant by Celluar based smaller cell? Cellar (basement) or cellular? --Ettrig (talk) 20:45, 3 February 2009 (UTC)

Cognitive radio is much more than spectrum management
The main functions of cognitive radio go far away than spectrum management and spectrum related issues. For example, user interaction is equally important. Mitola's definition seems in my opinion to be much more complete. --Cristeab (talk) 15:36, 9 July 2009 (UTC)

Cognitive radio applications
The article lacks a section dedicated to cognitive radio applications. As far as I know most applications use a limited definition of cognitive radio (see the comment above).

--Cristeab (talk) 15:37, 9 July 2009 (UTC)

Article needs an 'implementations' section
Not sure if this includes 'white space' devices or not, but as long as they satisfy the definition, they should be OK.

Also a clearer definition of licensed and 'unlicensed' spectrum.

Wikip rhyre (talk) 22:03, 9 August 2009 (UTC)

Poorly Written and Biased
This is a very poorly written and biased article. It makes the bland assumption that "...their transmissions would not interfere at all with the assigned service".

This claim is totally rejected by experienced Radio Engineers. It is simply not possible for small devices (probably in noisy locations) to detect the presence of distant and weak transmissions.

This was born out by the recent FCC tests of "White Space" devices. "The report concluded that the devices did not reliably sense the presence of television transmissions or other incumbent users....". See Wickipedia "White spaces (radio)".

Any attempt to implement "Cognitive Radio" or similar sources of Radio Interference will simply raise the background noise level to the point where many Licensed Services can no longer operate.

It would be Spectrum Pollution of the worst kind. Gutta Percha (talk) 04:15, 10 October 2009 (UTC)

Cognitive Radio in Licensed Bands
Cognitive radio as a secondary "user" of licensed band is still under research and development. The argument is not whether cognitive radio will interfere licensed users "at all". But what is the tolerance of licensed users, and what regulatory and specification shall be. There is no point to blame the technology as "Spectrum Pollution", but treat it as a potential to improve spectrum efficiency. Wirelessfan (talk) 20:15, 5 March 2012 (UTC)

External links modified
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Modification of References
References 9 and 12 have bad links. New ones need to be found. Also, the external source, Cognitive Radio Technologies Proceeding of Federal Communications Committee. References are needed for the definition of Unlicensed-band cognitive radio. More information is also needed in that definition. An additional link to add to this page under See Also should be Cognitive Radar since both fall under Cognitive Networks. mathematicalice (talk) 11:10, 20 October 2016 (UTC)

Writing Class evaluation
This article has a good lead section that is concise and is easy to understand. For terms that are more specialized, it links the term to the respective Wikipedia page. The page has clear headings and subheadings, but no figures to support the information or to clarify the information. Figures would be useful in the simulation, applications, and description sections. The sections terminology and technology are explained very clearly, however, more information is needed in the history and application section. Currently, the article has one paragraph describing the application of CR. Applications could be expanded to include current research applications used or being developed. There is a neurtral bias in the article, which is fine. The references are mostly sourced from IEEE, a reliable organization in their publications. Overall, the article covers the basics for being acceptable, but has room for improvement in addition of figures and expansion on some topics of information.

mathematicalice (talk) 00:36, 28 October 2016 (UTC)

Writing Class evaluation Update
I have added reference to the IEEE standard for CR and references to follow to see some applications. A figure would be ideal to have to explain each of the application, however, I have no original research to use to create such a figure. If someone has appropriate figures, please insert into Applications section.

mathematicalice (talk) 22:05, 21 November 2016 (UTC)

External links modified
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