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data networks

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Cheat Sheet: Galileo

Cheat Sheet The EU feels European sat-nav users need an alternative to the US GPS or Russia's Glonass military satellite networks for navigating around the continent. There will also be around 20 Galileo sensor stations around the globe which interact with the...

Tags: galileo, satellite, sat nav, europe

[28 Jan 2008]

Cheat Sheet: Mobile TV

Cheat Sheet UK operators touting mobile telly offerings are relying on streaming data over 3G networks, so users must have a 3G handset. As I mentioned before, there are problems with using 3G networks for mobile TV.

Tags: dvb-h, dab-ip, mobile tv, nokia

[22 Nov 2007]

Cheat Sheet: Grey nets

Cheat Sheet Instead they are networks of applications and devices. What about something like file sharing on peer-to-peer networks? Companies need to understand what is happening on their networks - after all how can you secure something you don't know about?

Tags: grey net, security, im

[06 Jul 2007]

Cheat Sheet: Wireless mesh networking

Cheat Sheet There are two types of mesh networks, one where every node is connected to every other node and another, known as a partial mesh network, where each node is only connected to some of the others in the network.

Tags: cheat sheet, mesh networking, mesh

[24 Feb 2006]

Cheat Sheet: Push-to-talk

Cheat Sheet: Push-to-talk

Cheat Sheet But this is a type of voice service that uses data networks. It will be about how they can use CDMA networks or GPRS extensions to GSM networks to carry voice messages. Because of the way it uses networks, end users - as with instant messaging...

Tags: mobile

[09 Sep 2004]

Cheat Sheet: 3G - in all its flavours

Cheat Sheet Those that use GSM now - which includes virtually all of Europe - see an upgrade path to 3G from their second-generation GSM networks to a type of 3G called W-CDMA, also synonymous with the term UMTS, which you brought up a minute ago.

Tags: imt-2000, umts, cdma, w-cdma

[04 Aug 2004]

Cheat Sheet: Storage virtualisation

Cheat Sheet: Storage virtualisation

Cheat Sheet Users'll be utilising their storage networks better and making the most of the hardware you spent all that hard earned cash for. Simply put, virtualisation is the pooling of data from multiple devices into what appears to be a single device...

[27 May 2002]

Cheat sheet: Mobile and wireless security

Cheat sheet: Mobile and wireless security

Cheat Sheet And don't forget wireless local area networks (WLANs) especially the Wi-Fi or 802.11x standard. It basically means a bunch of hackers are driving around in densely WLANed areas with home made hacking kits looking for vulnerable wireless networks.

[14 Feb 2002]

Cheat Sheet: i-mode

Cheat Sheet: i-mode

Cheat Sheet On the back of its domestic success, NTT DoCoMo has struck deals which may see AT&T Wireless and Taiwan's KG Telecom as well as European operators Telefonica, TIM in Italy, and KPN Mobile (with networks in Holland, Belgium and Germany) take up...

[08 Nov 2001]

Cheat Sheet: GPRS

Cheat Sheet: GPRS

Cheat Sheet Mobile networks like their prices complex, and they're having a field day with data. Analysts say that anyone wanting to make money with 3G services should get them up and running on GPRS networks. If you make a data connection over GSM, it is...

[25 Apr 2001]

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