80 search results - page 10 / 16 » On using transmission overhead efficiently for channel estim... |
SIGCOMM
2010
ACM
13 years 7 months ago
2010
ACM
We describe an opportunistic channel access scheme for cognitive radio-enabled secondary nodes (SNs). The proposed scheme uses the residual channel idle time distribution to estim...
PIMRC
2010
IEEE
13 years 5 months ago
2010
IEEE
Abstract-- Due to the limited energy supplies of nodes in wireless networks, achieving energy efficiency is crucial for extending the lifetime of these networks. Thus, we study eff...
ICC
2009
IEEE
14 years 1 months ago
2009
IEEE
Abstract—In this paper, we propose a training-based channel estimation scheme for large non-orthogonal space-time block coded (STBC) MIMO systems. The proposed scheme employs a b...
SIGCOMM
2010
ACM
13 years 7 months ago
2010
ACM
Modern communication technologies are steadily advancing the physical layer (PHY) data rate in wireless LANs, from hundreds of Mbps in current 802.11n to over Gbps in the near fut...
ICASSP
2011
IEEE
12 years 10 months ago
2011
IEEE
In this paper, a novel closed-loop distributed extended orthogonal space time block code (D-EO-STBC) with one-bit feedback based on selection of phase rotation is proposed for two...