5657 search results - page 68 / 1132 » Micropayments for Wireless Communications |
MSN
2007
Springer
14 years 2 months ago
2007
Springer
We have developed a self-healing key distribution scheme for secure multicast group communications for wireless sensor network environment. We present a strategy for securely distr...
INFOCOM
2006
IEEE
14 years 2 months ago
2006
IEEE
— We consider a multicast resource allocation problem for the downlink in OFDM-based wireless cellular network systems. In a conventional multicast system, to accommodate users w...
SAC
2009
ACM
14 years 21 days ago
2009
ACM
During a disaster, emergency response operations can benefit from the establishment of a wireless ad hoc network. We propose the use of autonomous robots that move inside a disas...
JCM
2007
13 years 8 months ago
2007
— Wireless communications is now completely pervasive, and already is used in many guises by people in everyday life. However until now, the information exchanged has been mainly...
GLOBECOM
2010
IEEE
13 years 6 months ago
2010
IEEE
We propose an adaptive transmission technique for optical wireless (OW) systems, operating in atmospheric turbulence and employing subcarrier phase shift keying (S-PSK) intensity m...