CORR
2007
Springer
13 years 5 months ago
2007
Springer
The problem of coding for channels with time-varying state is studied. Two different models are considered: one in which the channel state cannot depend on the transmitted signal,...
CORR
2007
Springer
13 years 5 months ago
2007
Springer
We consider the problem of transmitting data at rate R over a state dependent channel p(ylx, s) with the state information available at the sender and at the same time conveying th...
ITIIS
2008
13 years 5 months ago
2008
Cyclic delay diversity (CDD) is considered a simple approach to exploit the frequency diversity, to improve the system performance in orthogonal frequency division multiplexing (O...
CORR
2006
Springer
13 years 5 months ago
2006
Springer
In this correspondence, the multiple access channel (MAC) with channel state is analyzed in a scenario where a) the channel state is known non-causally to the transmitters and b) t...
ICWN
2003
13 years 6 months ago
2003
—Adapting transmission parameters to the future channel state is an appealing approach to improve efficiency in wireless communication. Adaptation requires predicting the chann...
IEEEMSP
2002
IEEE
13 years 10 months ago
2002
IEEE
Abstract—Traditionally, random access protocols have been designed and studied by assuming simple models for the physical layer. We introduce a reception model that incorporates ...
GLOBECOM
2006
IEEE
13 years 11 months ago
2006
IEEE
— We study coding and modulation rate adaptation problem for HARQ systems with partially observable state from cross-layer viewpoint. The rate of convolutionally coded MQAM is ad...
ICC
2007
IEEE
13 years 11 months ago
2007
IEEE
—Performance of cross-layer protocols that recommend the relay of corrupted packets to higher layers can be improved significantly by accurately inferring/predicting the bit erro...
GLOBECOM
2007
IEEE
13 years 11 months ago
2007
IEEE
—This paper presents an opportunistic feedback (OF) protocol that reduces the amount of channel-state-information (CSI) feedback for the OFDMA downlink system. The OF protocol as...
CISS
2007
IEEE
13 years 11 months ago
2007
IEEE
—In this first paper of a two-part series, a single-user single-input single-output (SISO) shot-noise-limited Poisson channel is considered over which an information signal is t...