UTC wireless loggin problem on mac laptop

 Tech asked whether VirualBox or VMWare on my Apple laptop caused the wireless connection issues. 

In log-in, I typed username but I cannot type in the password. 

As suggested by the tech, I typed in the password first, and then my username, and it worked. 

indoor positioning advances exploiting GZPS and WLAN infrastures

D Akopian

3 billion devices in 2014 relied on positions.
7.5 billions expected in 2019

 Global Navigation Satellite System GNSS

GNSS enabled handsets
multi-constelation GNSS (GPS, Galio, Beidou, GLONASS, etc)

FCC enhanced 911 requirement: original
network based technology, 100 meter of accuracy for 67 percent of calls, with 300 meters of 95 % calls

GPS-enabled phones: 50 meters of accuracy for 67% calls, 100 meters for 95% calls

In 2015, wireless phone must add public safety answring points with reports on their locations

Cell-ID, cell site identifcation (all networks)
Network based position tech vs GPS based positioning tech

A-GPS assistance GPS require cellular network

 WLAN radio landscape and fingerprinting, databased based positioning
challenges: fluctuating signals, landscape surveys

WIFI database, coarse-grid database, commerical vendors

GPS spoofing

crowdsourcing of positioning

openflow, wireless communication network simulation

http://archive.openflow.org/wp/getstarted/

wireless communication simulation

ipad air, cannot verify server identify

I disabled "auto login", and it worked for 'scwifi'.

Sharing internet connection through wireless on a Mountain Lion laptop

 On the Mountain Lion laptop (biolaptopmac2), I went to system preference, opened sharing, chose internet sharing through WiFi.  This laptop was connected to internet through an Ethernet cable.

On my iPad, I select the biolaptopmac2 wireless network, and the internet connection works.

Later, I figure to set up a password protected wireless network, I should do this: Open "sharing", click "Wi-Fi Options", specify a wireless network name, and choose WPA, input password twice. The passwords have to be longer enough to make "OK" highlighted. After "OK", choose "Internet Sharing".  This way, I can created a password-protected wireless network using the Mountain Lion laptop.

Reference
http://www.maclife.com/article/howtos/how_wirelessly_share_internet_connection_mac