9401 search results - page 1737 / 1881 » Wireless Networks |
155
Voted
WCNC
2008
IEEE
16 years 19 days ago
2008
IEEE
—Passive RFID tags transmit their ID information to a tag reader upon energization by the reader. These transmitted signals, or IDs, may collide if multiple tags transmit their I...
156
click to vote
WCNC
2008
IEEE
16 years 19 days ago
2008
IEEE
—UWB technology can reach centimetre level ranging and positioning accuracy in LOS propagation when time of arrival techniques are used. However, in a real positioning system, th...
151
click to vote
WCNC
2008
IEEE
16 years 19 days ago
2008
IEEE
— In an opportunistic spectrum sharing system, secondary users equipped with cognitive radios opportunistically access spectrum that is not being used by the primary users, i.e.,...
171
click to vote
WCNC
2008
IEEE
16 years 19 days ago
2008
IEEE
— Besides delivering high data rates in a point-to-point scenario, multi-input multi-output (MIMO) antenna techniques can broadcast personalized data to multiple users in the poi...
189
click to vote
WCNC
2008
IEEE
16 years 19 days ago
2008
IEEE
The Sensor Internet provides access to sensor services by connecting sensor nodes to the Internet infrastructure. To achieve this, current solutions rely on fixed access points or ...