174 search results - page 20 / 35 » On the Signaling Overhead in Dynamic OFDMA Wireless Systems |
JCM
2006
13 years 7 months ago
2006
Orthogonal Frequency Division Multiplexing (OFDM) has been increasingly used in wireless broadband communication systems. Guard interval (GI) is used in OFDM system to reduce inter...
IWCMC
2010
ACM
13 years 9 months ago
2010
ACM
"Vehicle to Grid" power or V2G will be a new green energy scheme that allows electricity to flow from Electric Vehicles (EVs) to power lines. The objective of this paper...
GLOBECOM
2009
IEEE
13 years 11 months ago
2009
IEEE
IEEE 802.22 wireless regional area network (WRAN) is an emerging cognitive radio-based system. One of the major challenges for WRANs is how to efficiently schedule both channel sen...
AAAI
2007
13 years 9 months ago
2007
Accurately locating users in a wireless environment is an important task for many pervasive computing and AI applications, such as activity recognition. In a WiFi environment, a m...
AAAI
2007
13 years 9 months ago
2007
This paper addresses the problem of recovering the locations of both mobile devices and access points from radio signals that come in a stream manner, a problem which we call onli...