Sciweavers

GLOBECOM
2006
IEEE
14 years 5 months ago
Linear Joint Source-Channel Coding for Gaussian Sources through Fading Channels
Abstract— We consider the linear coding of a discrete memoryless Gaussian source transmitted through a discrete memoryless fading channel with additive white Gaussian noise (AWGN)...
Jinjun Xiao, Zhi-Quan Luo, Nihar Jindal
GLOBECOM
2006
IEEE
14 years 5 months ago
Optimum Ergodic Power Allocation for Multiuser OFDM with Arbitrary Signal Constellations
Abstract— This paper formulates the power allocation policy that maximizes the region of ergodic mutual informations achievable in multiuser downlink OFDM channels known only sta...
Angel Lozano, Antonia Maria Tulino, Sergio Verd&ua...
GLOBECOM
2006
IEEE
14 years 5 months ago
Iterative Decoding of Entropy-Constrained Multiple Description Trellis-Coded Quantization
Abstract— This paper presents a coding scheme suitable for transmission of multimedia data over mixed internet and wireless channels. To resist packet losses and provide good com...
Morten Holm Larsen, Claudio Weidmann, Michel Kieff...
GLOBECOM
2006
IEEE
14 years 5 months ago
Adaptive Coding and Modulation for Hybrid ARQ Systems over Partially Observable Nakagami-m Fading Channels
— 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...
Ashok K. Karmokar, Vijay K. Bhargava
GLOBECOM
2006
IEEE
14 years 5 months ago
Outage Performance of Cognitive Wireless Relay Networks
— In this paper, we investigate the outage performance of cognitive wireless relay networks where source nodes communicate to their destinations via multiple hops facilitated by ...
Kyounghwan Lee, Aylin Yener
GLOBECOM
2006
IEEE
14 years 5 months ago
Optimal Resource Allocation via Geometric Programming for OFDM Broadcast and Multiple Access Channels
Abstract— For multi-user orthogonal frequency division multiplexing (OFDM) systems, efficient optimal rate and power allocation algorithms are presented via geometric programmin...
Kibeom Seong, David D. Yu, Youngjae Kim, John M. C...
GLOBECOM
2006
IEEE
14 years 5 months ago
When Does One Redundant Parity-Check Equation Matter?
— We analyze the effect of redundant parity-check equations on the error-floor performance of low-density paritycheck (LDPC) codes used over the additive white Gaussian noise (A...
Stefan Laendner, Thorsten Hehn, Olgica Milenkovic,...
GLOBECOM
2006
IEEE
14 years 5 months ago
Non-linear Turbo Codes for Interleaver-Division Multiple Access on the OR Channel
Abstract— This paper presents an Interleaver-Division Multiple Access (IDMA) based architecture with single-user decoding using parallel concatenated non-linear trellis codes (PC...
Miguel Griot, Andres I. Vila Casado, Richard D. We...
GLOBECOM
2006
IEEE
14 years 5 months ago
Optimality of FDMA in Gaussian Multiple-Access Channels with Non-zero SNR Margin and Gap
— This paper investigates the effect of non-zero SNR margin and coding gap on the maximum sum rate and achievable rate region of the Gaussian Multiple-Access Channel (MAC). Frequ...
Sumanth Jagannathan, John M. Cioffi
GLOBECOM
2006
IEEE
14 years 5 months ago
Link-Adaptive Distributed Coding for Multi-Source Cooperation
Abstract— Combining multi-source cooperation and linkadaptive regenerative techniques, we develop a novel protocol capable of achieving diversity up to the number of cooperating ...
Alfonso Cano, Tairan Wang, Alejandro Ribeiro, Geor...