Elements of information theory
Elements of information theory
Error control systems for digital communication and storage
Error control systems for digital communication and storage
FOCS '02 Proceedings of the 43rd Symposium on Foundations of Computer Science
IEEE/ACM Transactions on Networking (TON) - Special issue on networking and information theory
Optimizing the ARQ performance in downlink packet data systems with scheduling
IEEE Transactions on Wireless Communications
Comments on broadcast channels
IEEE Transactions on Information Theory
Applications of error-control coding
IEEE Transactions on Information Theory
Fading channels: information-theoretic and communications aspects
IEEE Transactions on Information Theory
The throughput of hybrid-ARQ protocols for the Gaussian collision channel
IEEE Transactions on Information Theory
A broadcast approach for a single-user slowly fading MIMO channel
IEEE Transactions on Information Theory
Rate-compatible puncturing of low-density parity-check codes
IEEE Transactions on Information Theory
Rate-compatible punctured low-density parity-check codes with short block lengths
IEEE Transactions on Information Theory
Adaptive transmission with finite code rates
IEEE Transactions on Information Theory
The MIMO ARQ Channel: Diversity–Multiplexing–Delay Tradeoff
IEEE Transactions on Information Theory
Diversity–Multiplexing Tradeoff in MIMO Channels With Partial CSIT
IEEE Transactions on Information Theory
Optimal Throughput-Diversity-Delay Tradeoff in MIMO ARQ Block-Fading Channels
IEEE Transactions on Information Theory
On the average rate of quasi-static fading channels with ARQ and CSI feedback
IEEE Communications Letters
On Multiple Access Using H-ARQ with SIC Techniques for Wireless Ad Hoc Networks
Wireless Personal Communications: An International Journal
OFDM Error Floor Prediction in a Small-Time-Dispersion Channel
Wireless Personal Communications: An International Journal
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The problem of efficient communication over a scalar quasi-static fading channel is considered. The single-layer transmission (SLT) and multi-layer transmission (MLT) schemes do not require any knowledge of the channel state information (CSI) at the transmitter, but their performance is also limited. It is shown that using Hybrid-ARQ (HARQ) can significantly improve the average rate performance, provided that the rate assignment between different ARQ rounds is carefully chosen. The average rate performance of several HARQ schemes is optimized and compared. In addition, optimal power allocation among retransmissions is derived and shown to further increase the average rate. This power allocation gain is remarkable at low signal-to-noise ratio (SNR), but becomes negligible at high SNR. Comparison of two different types of limited feedback, sequential feedback (ARQ) and one-shot feedback (quantized CSI), is made from several perspectives. Although the optimization problem is formed with respect to the average rate, simulation results give a comprehensive comparison under different metrics, including average rate, outage probability, and the combination of both. Substantial performance improvement is observed with even one ARQ retransmission in all simulations. More importantly, this gain appears to be robust with respect to the fading distributions.