131 search results - page 24 / 27 » Ad-hoc voice-based group communication |
GLOBECOM
2007
IEEE
14 years 1 months ago
2007
IEEE
— An opportunistic large array (OLA) is a form of cooperative diversity in which a large group of simple, inexpensive relays or forwarding nodes operate without any mutual coordi...
IJSN
2006
13 years 7 months ago
2006
: Wireless Sensor Networks (WSN) pose a need for dynamically establishing a secret key joint to a group of nodes. Elliptic Curve Cryptography (ECC) has emerged as a suitable public...
CHI
2004
ACM
14 years 7 months ago
2004
ACM
This paper describes a new collaboration technology that is carefully poised between informal, ad hoc, easy-to-initiate collaborative tools, vs. more formal, structured, and higho...
ICC
2009
IEEE
14 years 2 months ago
2009
IEEE
— In cellular networks, relays and/or mobiles can cooperate to improve the overall system performance. For example, once the transmission from a base station with multiple antenn...
INFOCOM
2005
IEEE
14 years 1 months ago
2005
IEEE
We consider the problem of neighbor discovery in static wireless ad hoc networks with directional antennas. We propose several probabilistic algorithms in which nodes perform rand...