NDLI: Real-time rate-adaptable coding for fading channels

Content Provider	IEEE Xplore Digital Library
Author	Schmidt, S. Harrison, W.K.
Copyright Year	2015
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Univ. of Colorado, Colorado Springs, CO, USA (Schmidt, S.; Harrison, W.K.)
Abstract	In this paper, a new adaptive-rate convolutional coding system for maximizing the throughput over slowly fading channels is presented. The scheme is capable of adapting on the fly to fading conditions without the delay inherent in ARQ-based adaptive-rate strategies. The system employs a bank of encoders, and the current encoder is selected as a function of the channel state information obtained through a periodically transmitted feedback training sequence. This scheme does not require rate compatibility in the code bank, and can therefore make use of the best-known codes of any rates with arbitrary constraint lengths. At the receiver, an innovative decoding method based on the well-known Viterbi algorithm is employed. Knowledge of the encoder choices is not required at the decoder due to its ability to seamlessly track encoder transitions through an expanded Viterbi trellis. The system provides a hassle-free solution to achieving high-rate communications over fading channels.
Starting Page	151
Ending Page	156
File Size	1096534
Page Count	6
File Format	PDF
e-ISBN	9781467391696
DOI	10.1109/DSP-SPE.2015.7369544
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-08-09
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fading Yttrium Optimization Delays Error analysis Weaving Adaptation models forward error correction Viterbi algorithm adaptive coding fading
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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