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Improved Decoding of Analog Modulo Block Codes for Noise Mitigation

Abstract: 

A drawback of digital transmission of analog signals is the unavoidable quantization error which leads to a limited quality even for good channel conditions.

This saturation can be avoided by using analog transmission systems with discrete-time and quasi-continuous-amplitude encoding and decoding, e.g., Analog Modulo Block codes (AMB codes). The AMB code vectors are produced by multiplying a real-valued information vector with a real-valued generator matrix using a modulo arithmetic.

Here, algorithms for improving the decoding performance are presented. The Lattice Maximum Likelihood (LML) decoder, a variant of the Discrete Maximum Likelihood (DML) decoder, is derived and analyzed. It refines the Zero Forcing (ZF) result if necessary, thus achieving near-ML signal quality with a reduced decoding complexity. A reduced complexity is essential for decoding high-dimensional code words. Additionally, pre- and post-processing methods are presented and analyzed, which increase the signal-to-distortion ratio (SDR) of the received symbols.

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Paper Details

Authors:
Tim Schmitz, Peter Jax, Peter Vary
Submitted On:
16 June 2016 - 3:14am
Short Link:
Type:
Poster
Event:
Presenter's Name:
Tim Schmitz
Document Year:
2016
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poster_decoder_r858.pdf

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[1] Tim Schmitz, Peter Jax, Peter Vary, "Improved Decoding of Analog Modulo Block Codes for Noise Mitigation", IEEE SigPort, 2016. [Online]. Available: http://sigport.org/1112. Accessed: Jul. 22, 2017.
@article{1112-16,
url = {http://sigport.org/1112},
author = {Tim Schmitz; Peter Jax; Peter Vary },
publisher = {IEEE SigPort},
title = {Improved Decoding of Analog Modulo Block Codes for Noise Mitigation},
year = {2016} }
TY - EJOUR
T1 - Improved Decoding of Analog Modulo Block Codes for Noise Mitigation
AU - Tim Schmitz; Peter Jax; Peter Vary
PY - 2016
PB - IEEE SigPort
UR - http://sigport.org/1112
ER -
Tim Schmitz, Peter Jax, Peter Vary. (2016). Improved Decoding of Analog Modulo Block Codes for Noise Mitigation. IEEE SigPort. http://sigport.org/1112
Tim Schmitz, Peter Jax, Peter Vary, 2016. Improved Decoding of Analog Modulo Block Codes for Noise Mitigation. Available at: http://sigport.org/1112.
Tim Schmitz, Peter Jax, Peter Vary. (2016). "Improved Decoding of Analog Modulo Block Codes for Noise Mitigation." Web.
1. Tim Schmitz, Peter Jax, Peter Vary. Improved Decoding of Analog Modulo Block Codes for Noise Mitigation [Internet]. IEEE SigPort; 2016. Available from : http://sigport.org/1112