NBA TV - High definition. 1  NBA TV HD is a 1080i high definition simulcast feed of NBA TV that is available on most providers.
Updated September 13, 2016. Definition: WPA is a security technology for Wi-Fi wireless computer networks. WPA improves on the authentication and encryption features of WEP (Wired Equivalent Privacy). In fact, WPA was developed by the networking industry in response to the weaknesses of WEP.
David Cohen, one of the founders of the Wi-Fi Alliance (a trade organization that certifies the interoperability of wireless products made to IEEE standards), explains that WPA adds strong user authentication, which must be accomplished even before encryption begins.