512 search results - page 3 / 103 » Random Access Systems with a Time Varying Channel |
134
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INFOCOM
2008
IEEE
15 years 10 months ago
2008
IEEE
—We consider a time-slotted multipacket reception channel, shared by a finite number of mobile users who transmit to a common base station. Each user is allocated a fixed data ...
122
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ICC
2007
IEEE
15 years 10 months ago
2007
IEEE
— This paper derives a phase-noise suppression scheme for orthogonal frequency division multiplexing (OFDM) systems. This scheme is a maximum likelihood approach that exploits th...
155
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VTC
2006
IEEE
15 years 10 months ago
2006
IEEE
Abstract— Studies on differential unitary space-time modulation are mostly focused on Rayleigh fading channels. In this paper we present new analytic results for the maximum-like...
138
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ICC
2007
IEEE
15 years 10 months ago
2007
IEEE
In this paper, we investigate the application of a unipolar Non-Coherent M-ary Orthogonal Keying (NC-MOK) for OFDM system that does not require channel estimation and compare its p...
153
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GLOBECOM
2007
IEEE
15 years 10 months ago
2007
IEEE
—In this paper, we present an iterative algorithm for channel complex gains estimation with inter-sub-carrierinterference (ICI) reduction in orthogonal-frequency-divisionmultiple...