I'm a R&D Researcher at an industrial research lab, one of the few remaining places of this kind, tracing back to the famed Bell Labs. (Of course, it is not the same any more. For the history and other info, start from here, here and here, where you will find generally OK information, but not all accurate. Always verify..)

Sometimes alone and sometimes together with my colleagues, interns and contractors, I work on various things related to wireless technologies and mobile Internet. 

I finished my graduate work in 1997 at Stanford, and since then, have been in the wireless and networking industry on both coasts of the U.S., not equally divided of course, through the good times and bad times.

I've worked on various subjects from physical layers to application layers, but recently my main focus has been the access and core network architecture for wide-area mobile wireless cellular systems. For details, please refer to my papers and other information on this site. 

Besides the main interest, I have been dabbling in  network security, applications, services & middleware, and various other phenomena on the Internet, including regulations, historical parallels and accidental events.

The wireless industry relies heavily on industry standards, probably more so than other engineering fields due to the nature of "communication", i.e., more than one party have to agree on how to talk to make communication possible. Too obvious? 

As a result, I monitor, decipher and participate in standard activities in IEEE 802.11, 802.16, 802.20, 802.21, 802.22, Wi-Fi Alliance, WiMAX forum, IETF, W3C, 3GPP, and the like, not in that order, nor all concurrently (That'd be inhumane).

Over my time spent in standard activities, I've come to appreciate various pros and cons of presently-practiced standards-setting approaches and market dynamics reflected in them, in human, political, economic and finally technological contexts. I plan to write about it someday, hopefully soon.

Oh, did I mention that I'm a gadget freak? though I don't get to play with new toys (some in my professional capacity and some not) as much as a few years ago for various reasons.

I strive to understand so-called "big picture" context of anything I come across, though due to the complexity of modern market dynamics and technologies, the business of 'predicting the future' appears to be left for the clueless, the irresponsible and snake oil salesmen. In fact, seeing through snake oil pitches and poking holes in them have been one of my favorite pass time.

Also, when I get around to them, you may find a few links to my non-professional interests like photography, technology history, economic history, psychology, cinema, etc. ...

As usual, I proclaim that this site is under perpetual renovation, so excuse me for errors. Of course, please check back from time to time for new stuff if you like. 

Thanks for visiting!

J.