NDLI: Achievable rate of single-carrier systems with optimal uniform quantization at the receiver

Content Provider	IEEE Xplore Digital Library
Author	Krone, S. Fettweis, G.
Copyright Year	2010
Description	Author affiliation: Dept. of Mobile Commun. Syst., Tech. Univ. Dresden, Dresden, Germany (Krone, S.; Fettweis, G.)
Abstract	The performance of digital communications systems can be affected by limitations of the analog-to-digital conversion at the receiver. To cope with finite sampling frequency and limited quantization resolution it is important to know about the impact on the achievable rate. This paper studies the achievable rate of single-carrier systems that employ analog-to-digital-conversion with uniform quantization. The achievable rate is evaluated in terms of the average mutual information between the transmitted symbols and the quantized received samples. Complex-valued modulation schemes are considered and a phase offset between the transmitter and the receiver is taken into account. System design constraints that derive from general upper bounds are discussed, and the achievable rate with optimal uniform quantization is evaluated numerically. The results show that a phase offset can significantly degrade the performance even in case of optimal quantization. This degradation cannot be compensated by means of any digital post-processing but requires either sufficiently high quantization resolution or an analog compensation, both of which has to be traded off for receiver complexity.
Starting Page	1
Ending Page	5
File Size	1499745
Page Count	5
File Format	PDF
ISBN	9781424463725
e-ISBN	9781424464159
DOI	10.1109/ITWKSPS.2010.5503146
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-01-06
Publisher Place	Egypt
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Quantization Degradation Digital communication Analog-digital conversion Sampling methods Frequency Mutual information Phase modulation Transmitters Upper bound
Content Type	Text
Resource Type	Article

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