5657 search results - page 933 / 1132 » Micropayments for Wireless Communications |
150
click to vote
ICC
2007
IEEE
16 years 27 days ago
2007
IEEE
An impulse radio indoor mapping and positioning technique has been proposed. This technique enables impulse radios to use the times of arrival (TOAs) of dominant echoes from the su...
180
click to vote
ICC
2007
IEEE
16 years 27 days ago
2007
IEEE
Abstract—This paper investigates the impact of fading correlation and channel degeneracy alias keyhole condition on the capacity of multiple-input multiple-output (MIMO) spatial ...
171
click to vote
ICC
2007
IEEE
16 years 27 days ago
2007
IEEE
—Most of the current 802.11b research activities are conducted under stationary environment. As the need for highspeed connectivity in mobile environments increases, it becomes n...
153
click to vote
ICC
2007
IEEE
16 years 27 days ago
2007
IEEE
— Wireless sensor networks have been deployed for various critical monitoring applications in hostile environments such as monitoring the concentration levels of hazardous gas sp...
195
click to vote
ICC
2007
IEEE
16 years 27 days ago
2007
IEEE
— There is a need for new spectrum access protocols that are opportunistic, flexible and efficient, yet fair. Game theory provides a framework for analyzing spectrum access, a ...