490 search results - page 21 / 98 » Changing the Channel |
ICC
2007
IEEE
13 years 11 months ago
2007
IEEE
To increase the achievable sum rate of downlink MIMO (Multiple Input Multiple Output) systems, the cooperation among Base Stations (BS) is investigated in a slow fading channel. Th...
ICC
2009
IEEE
14 years 2 months ago
2009
IEEE
—The ability of setting up a covert channel, which allows any two nodes with Internet connections to engage in secretive communication, clearly causes a very serious security con...
ICC
2007
IEEE
14 years 2 months ago
2007
IEEE
—The time-varying nature of wireless channels poses a challenge for using soft-decision iterative decoders on such channels. Even if the channel gain is perfectly known to the re...
IFIP
2004
Springer
14 years 1 months ago
2004
Springer
: Handoff at the link layer 2 (L2) consists of three phases including scanning, authentication, and reassociation. Among the three phases, scanning is dominant in terms of time del...
CONCUR
2004
Springer
14 years 1 months ago
2004
Springer
We define a language whose type system, incorporating session types, allows complex protocols to be specified by types and verified by static typechecking. A session type, asso...