512 search results - page 3 / 103 » Random Access Systems with a Time Varying Channel |
INFOCOM
2008
IEEE
14 years 5 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 ...
ICC
2007
IEEE
14 years 5 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...
VTC
2006
IEEE
14 years 4 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...
ICC
2007
IEEE
14 years 5 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...
GLOBECOM
2007
IEEE
14 years 5 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...