Telecom and Networking

Ethernet networks for telecom operators

Hardware developers familiar with the history of Ethernet in the enterprise may find themselves overwhelmed by the service diversity and complexity which must be addressed in applications for the local exchange carrier, long-haul or inter-exchange provider, and wireless operator. Analyze service complexity in a common Ethernet infrastructure article tasks Ethernet is called upon to perform

Last IPv4 Addresses Allocated

Today is a historic milestone for the Internet: the allocation of the last remaining IPv4 Internet addresses from a central pool. The ICANN pool of available unallocated addresses for IPv4 is completely depleted. The allocation of the final IPv4 addresses is analogous to the last crates of a product leaving a manufacturing warehouse and going

1G, 2G, 3G, 4G, and everything between

Just what is “4G,” anyway? It’s one higher than 3G, sure, but does that necessarily mean it’s better? 2G, 3G, 4G, and everything in between: an Engadget wireless primer tries to answer those and some other questions on mobile communications technologies. Here is my “short” summary of the different generations: 1G: Analogue cellphone technologies introduces

Communicating LED lamps

LEDs are used for a long time for all kinds of data communications applications ranging from wireless IR remote controls and IrDA to wired fiber optics communication. There has been many years ago also ideas on optical wireless LANs based on infrared, but they faded quickly. But now when LED lights are becoming very popular

GSM is insecure

Whatever assurances have been given about the security of GSM cellphone calls, forget about them now. Breaking GSM With a $15 Phone … Plus Smarts article tells that a pair of researchers demonstrated a start-to-finish means of eavesdropping on encrypted GSM cellphone calls and text messages, using only four sub-$15 telephones as network “sniffers,” a

Energy Efficient Ethernet

Ethernet link speeds of 100 megabits per second or even 1 Gbit/s per second are typical in today’s LANs. When everything is wired to Ethernet LAN very many LAN connections are needed and they consume some power. And the faster the Ethernet connection is, typically more power it consumes. IEEE Spectrum Energy-Efficient Ethernet article tells

System level transient voltage protection

The challenge of protecting today’s systems from transient threats is more complex than ever before. As semiconductor manufacturers introduce new wireline transmission devices built on smaller CMOS geometries, more circuit protection challenges are emerging. CommsDesign article System level transient voltage protection–Five in-depth answers to ESD questions gives answers to important questions that can ensure that

EU and cookies

EU Chews on Web Cookies article tells on Europe’s effort to regulate online “cookies”. The effort to regulate online “cookies” is crumbling, exposing how tough it is to curb the practice of tracking Internet users’ movements on the Web. EU officials see themselves as leaders on consumer-safety issues. European Union last year passed a law

Mobile TV has failed

Very much hyped Mobile TV seems to be doomed. Mobile TV bubble has been busted. Consumer uptake had never met expectations for the mobile TV service. There has been very much worldwide Mobile TV subscriber uptake than projected by many. Separate mobile TV broadcasting networks seems to be doomed to demise in most markets. DVB-H