121 search results - page 1 / 25 » An Improved Threshold-Based Channel Selection Scheme for Wir... |
INFOCOM
2006
IEEE
13 years 11 months ago
2006
IEEE
— we propose a novel multicast scheme that can provide quality-of-service (QoS) to multicast service over IEEE 802.11 wireless LANs by utilizing MAC layer relay. We develop the d...
VTC
2008
IEEE
13 years 11 months ago
2008
IEEE
Abstract: In this paper, we consider a two-way or bidirectional communications system with a relay equipped with multiple antennas. We show that when the downlink channel state inf...
JCM
2007
13 years 4 months ago
2007
—Modulation techniques have attracted increasing attention in optical wireless communications. Basic schemes such as on off keying (OOK), pulse amplitude modulation (PAM) and pul...
ICC
2009
IEEE
13 years 2 months ago
2009
IEEE
In this paper, we study the possibility of throughput improvement through precoding in OFDMA based wireless systems with limited channel feedback. Precoding can increase the overal...
GLOBECOM
2009
IEEE
13 years 2 months ago
2009
IEEE
Abstract--Cooperative communications have been demonstrated to be effective in combating the multiple fading effects in wireless networks, and improving the network performance in ...