Outage behavior of slow fading channels with power control using partial and erroneous CSIT

Authors:
Siavash Ekbatani;Farzad Etemadi;Hamid Jafarkhani
Affiliations:
Broadcom Corporation, Irvine, CA and Department of Electrical Engineering and Computer Science, University of California, Irvine, CA;Broadcom Corporation, Irvine, CA and Department of Electrical Engineering and Computer Science, University of California, Irvine, CA;Center for Pervasive Communications and Computing, University of California, Irvine, CA
Venue:
IEEE Transactions on Information Theory
Year:
2010

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Throughput maximization over slowly fading channels using quantized and erroneous feedback

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Outage behavior of slow fading channels with power control using partial and erroneous CSIT

IEEE Transactions on Information Theory

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Abstract

This work investigates high-SNR outage behavior of slow fading channels with quantized feedback and partial power control, when feedback indices are error-prone. We propose a quantizer structure with continuous Voronoi regions and derive its optimality conditions using probability analysis. Our design involves construction of a novel bit-mapping scheme. The optimized power control codebook resembles channel optimized scalar quantizers (COSQs). Also, the diversity gain of the communication system under study is characterized with both nonzero and vanishing feedback error probabilities.