359 search results - page 48 / 72 » The Impact of Using Multiple Antennas on Wireless Localizati... |
INFOCOM
2010
IEEE
13 years 7 months ago
2010
IEEE
Abstract—We consider a cognitive radio network where multiple secondary users (SUs) contend for spectrum usage, using random access, over available primary user (PU) channels. Ou...
RTSS
2007
IEEE
14 years 3 months ago
2007
IEEE
— With the advent of CMOS cameras, it is now possible to make compact, cheap and low-power image sensors capable of on-board image processing. These embedded vision sensors provi...
SECON
2010
IEEE
13 years 6 months ago
2010
IEEE
Abstract--Today's mobile devices support many wireless technologies to achieve ubiquitous connectivity. Economic and energy constraints, however, drive the industry to impleme...
MASCOTS
2004
13 years 10 months ago
2004
In this paper, a modified version of the IEEE 802.11a protocol is proposed and evaluated. We combine MultiCarrier Code Division Multiple Access (MC-CDMA), a novel, high capacity m...
GLOBECOM
2010
IEEE
13 years 6 months ago
2010
IEEE
When asymmetric cryptography techniques are used in wireless networks, the public keys of the nodes need to be widely available and signed by a Certificate Authority (CA). However,...