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GLOBECOM
2007
IEEE
15 years 2 months ago
2007
IEEE
We propose a spectrally efficient transmission scheme for the half-duplex relay channel. In the proposed scheme, the relay combines N detected r-dimensional symbols and generates M...
121
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GLOBECOM
2007
IEEE
15 years 5 months ago
2007
IEEE
— In this paper, we investigate the channel selection strategy for secondary users in cognitive radio networks. We claim that in order to avoid the costly channel switchings, a s...
GLOBECOM
2007
IEEE
15 years 5 months ago
2007
IEEE
— In this paper, we propose an analytical model to capture the dynamics of the RED algorithm. We first develop a system of recursive equations that describes the packet dropping...
GLOBECOM
2007
IEEE
15 years 5 months ago
2007
IEEE
— There are many different channels defined in the IEEE 802.11 standard. However, the performance of WiFi networks still greatly suffers from the interference between users, eve...
GLOBECOM
2007
IEEE
15 years 5 months ago
2007
IEEE
—In this paper, we investigate diversity gain in coding for a 2-user multiple-access-channel (MAC) with cooperating transmitters–the MAC with relaying. We propose a simple dist...