ICC
2007
IEEE
14 years 6 months ago
2007
IEEE
— This paper presents a new double space-time transmit diversity-orthogonal frequency division multiplexing (DSTTD-OFDM) scheme using the zero-forcing decisionfeedback (ZF-DF) de...
GLOBECOM
2007
IEEE
14 years 6 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...
CISS
2007
IEEE
14 years 6 months ago
2007
IEEE
Relay-based cooperative communications can achieve spatial diversity gains, enhance coverage and potentially increase capacity. If considered for large networks, traditional relayi...
VTC
2008
IEEE
14 years 6 months ago
2008
IEEE
— This paper presents a novel amalgam of Steered Space-Time Spreading (SSTS) and Orthogonal Frequency Division Multiple Access (OFDMA) designed for attaining both spatial diversi...
ICC
2008
IEEE
14 years 7 months ago
2008
IEEE
—Taking advantage of the frequency diversity and multiuser diversity in OFDMA based wireless networks, dynamic subcarrier assignment mechanisms have shown to be able to achieve m...