GLOBECOM
2007
IEEE
14 years 7 months ago
2007
IEEE
— We propose a secure data transmission scheme that takes advantage of node mobility. The scheme is based on the observation that due to mobility, messages sent at different time...
GLOBECOM
2007
IEEE
14 years 7 months ago
2007
IEEE
—One of the main requirements of cognitive radio systems is the ability to reliably detect the presence of licensed primary transmissions. Previous works on the problem of detect...
GLOBECOM
2007
IEEE
14 years 7 months ago
2007
IEEE
—Over the last few years, many researchers have paid a lot of attention to the user authentication problem. However, to date, there has been relatively little research suited for...
GLOBECOM
2007
IEEE
14 years 7 months ago
2007
IEEE
GLOBECOM
2007
IEEE
14 years 7 months ago
2007
IEEE
— While the frequency-dependence of the wireless channel may be negligible for narrow to wideband signals, it has been shown that modeling this dependence for bandwidths in exces...
GLOBECOM
2007
IEEE
14 years 7 months ago
2007
IEEE
— We consider about a multiple relay system operating under amplify-and-forward (AF) protocol and non-coherent modulation and demodulation. When the relays are under long-term po...
GLOBECOM
2007
IEEE
14 years 7 months ago
2007
IEEE
—This paper presents an opportunistic feedback (OF) protocol that reduces the amount of channel-state-information (CSI) feedback for the OFDMA downlink system. The OF protocol as...
GLOBECOM
2007
IEEE
14 years 7 months ago
2007
IEEE
Abstract— Duality between the multi-antenna multi-user uplink and the downlink has been discovered in terms of sum rate, capacity region, signal-to-interference-plus-noise-ratio ...
GLOBECOM
2007
IEEE
14 years 7 months ago
2007
IEEE
—this paper addresses the design challenge of interference mitigation in the emerging high density (HD) wireless LAN. It is proposed to differentiate interference according to th...
GLOBECOM
2007
IEEE
14 years 7 months ago
2007
IEEE
— In wireless communications, shadow fading can cause at least 6 dB power loss for 10% of the time [1]. Early detection of shadow fading plays an important part in facilitating t...