SelectedWorks - Robert Henry Morelos-Zaragoza

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Selected Works of Robert Henry Morelos-Zaragoza

Professor, Electrical Engineering Department

Robert Morelos-Zaragoza has research interests in the areas of error correcting coding and wireless communication systems. He is the author of over 25 international peer-reviewed journal papers and over eightyfive international conference papers. His book "The Art of Error Correcting Coding" (2nd edition, John Wiley and Sons, 2006) has been translated into Chinese and Russian. He holds fourteen patents, in the U.S.A., Japan and Europe, on error correcting codes (ECC) and software-defined radio (SDR).

Prof. Morelos-Zaragoza is a senior member of the IEEE and an active consultant for industry in ECC and SDR technologies. He has also served as reviewer and technical program committee member in numerous international IEEE conferences and journals in Information Theory and Wireless Communication Systems since 1995.

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About Robert Henry Morelos-Zaragoza

Robert Morelos-Zaragoza has research interests in the areas of error correcting coding and wireless communication systems. He is the author of over 25 international peer-reviewed journal papers and over eightyfive international conference papers. His book "The Art of Error Correcting Coding" (2nd edition, John Wiley and Sons, 2006) has been translated into Chinese and Russian. He holds fourteen patents, in the U.S.A., Japan and Europe, on error correcting codes (ECC) and software-defined radio (SDR).

Prof. Morelos-Zaragoza is a senior member of the IEEE and an active consultant for industry in ECC and SDR technologies. He has also served as reviewer and technical program committee member in numerous international IEEE conferences and journals in Information Theory and Wireless Communication Systems since 1995.

Using Software Defined Radios to teach Wireless Communication Courses (Robert H Morelos-Zaragoza) Wireless Innovation Forum 2014 (2014)

Reversible Data Hiding with a New Local Contrast Enhancement Approach (Eduardo Fragoso-Navarro, Manuel Cedillo-Hernandez, Francisco Garcia-Ugalde, et al.) Mathematics (2022)

Reversible data hiding schemes hide information into a digital image and simultaneously increase its contrast. The improvements of the different approaches aim to increase the capacity, contrast, and quality of the image. However, recent proposals ...

Additional information delivery to image content via improved unseen–visible watermarking (Oswaldo Ulises Juarez-Sandoval, Laura Josefina Reyes-Ruiz, Francisco Garcia-Ugalde, et al.) Electronics (Switzerland) (2021)

In a practical watermark scenario, watermarks are used to provide auxiliary information; in this way, an analogous digital approach called unseen–visible watermark has been introduced to deliver auxiliary information. In this algorithm, the embedding stage ...

Consideration for affects of an xor in a random number generator using ring oscillators (Ryoichi Sato, Yuta Kodera, Md Arshad Ali, et al.) Entropy (2021)

A cloud service to offer entropy has been paid much attention to. As one of the entropy sources, a physical random number generator is used as a true random number generator, relying on its irreproducibility. ...

Rotor Fault Detection of Squirrel Cage Induction Motor Using Spectrum Analysis of Dynamic Simulation and Experimental Validation (Ariunbolor Purvee, Enkhbat Tsend-Ayush, Natsagdorj Erdenetsogt, et al.) 2019 IEEE Energy Conversion Congress and Exposition (2019)

This study investigates the equations of characteristic frequencies in the torque and vibration spectrum to determine rotor faults based on the dynamic simulation of a squirrel cage induction motor with a broken rotor bar. The ...

Algebraic group structure of the random number generator: Theoretical analysis of NTU sequence(s) (Yuta Kodera, Md. Arshad Ali, Takeru Miyazaki, et al.) IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences (2019)

An algebraic group is an essential mathematical structure for current communication systems and information security technologies. Further, as a widely used technology underlying such systems, pseudorandom number generators have become an indispensable part of their ...

On Performance Improvements with Odd-Power (Cross) QAM Mappings in Wireless Networks (Quyhn Quach and Robert H Morelos-Zaragoza) Unpublished paper (2015)

Modern wireless networks use QAM modulation with mappings that are derived from square signal constellations in which the number of signal points is an even power of two. In the particular case of IEEE 802.11 ...

Error Correcting Codes for Cooperative Broadcasting (Robert H Morelos-Zaragoza) ISL colloquium, Stanford University (2010)

This talk considers the design and implementation of error correcting codes for cooperative broadcasting in wireless networks. Focus is on the case of two cooperating sources transmitting two classes of information to a single receiver. ...

On Iterative Decoding of Two-Level Superposition Codes for Cooperative Broadcasting Based on QPSK and 4-PAM Constellations (Robert H Morelos-Zaragoza) Proc. IEEE MILCOM 2010 conference (2010)

This paper considers iterative decoding of two-level superposition codes used in cooperative broadcasting over wireless networks. The coding scheme consists of two low-density parity-check (LDPC) codes combined using Plotkin’s |u|u+v|-construction and provides two levels of ...

Multi-Valued Sequences Generated by Power Residue Symbols over Odd Characteristic Fields (Begum Nasima, Yasuyuki Nogami, Satoshi Uehara, et al.) IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences (2017)

This paper proposes a new approach for generating pseudo random multi-valued (including binary-valued) sequences. The approach uses a primitive polynomial over an odd characteristic prime field $\f{p}$, where p is an odd prime number. Then, for the ...

A Multi-Value Sequence Generated by Power Residue Symbol and Trace Function over Odd Characteristic Field (Yasuyuki Nogami, Satoshi Uehara, Kazuyoshi Tsuchiya, et al.) IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences (2016)

This paper proposes a new multi-value sequence generated by utilizing primitive element, trace, and power residue symbol over odd characteristic finite field. In detail, let p and k be an odd prime number as the characteristic and a prime ...

Precoding by Priority: A UEP Scheme for RaptorQ Codes (Robert H Morelos-Zaragoza and Keshava M Elliadka) arXiv.org (2014)

Raptor codes are the first class of fountain codes with linear time encoding and decoding. These codes are recommended in standards such as Third Generation Partnership Project (3GPP) and digital video broadcasting. RaptorQ codes are ...

Unequal Error Protection with CRC-16 Bits in EPC Class-1 Generation-2 UHF RFID Systems (Robert H Morelos-Zaragoza) Proc. 2012 International Symposium on Information Theory and its Applications (ISITA 2012) (2012)

Error Correcting Codes for Cooperative Broadcasting (Robert H Morelos-Zaragoza) ISL colloquium, Stanford University (2010)

This talk considers the design and implementation of error correcting codes for cooperative broadcasting in wireless networks. Focus is on the case of two cooperating sources transmitting two classes of information to a single receiver. ...

On Iterative Decoding of Two-Level Superposition Codes for Cooperative Broadcasting Based on QPSK and 4-PAM Constellations (Robert H Morelos-Zaragoza) Proc. IEEE MILCOM 2010 conference (2010)

This paper considers iterative decoding of two-level superposition codes used in cooperative broadcasting over wireless networks. The coding scheme consists of two low-density parity-check (LDPC) codes combined using Plotkin’s |u|u+v|-construction and provides two levels of ...

On Coding for Dense Multipath Channels (Robert H Morelos-Zaragoza) Proc. of 2007 Hawaii and SITA Joint Conference on Information Theory (HSIC) (2007)

A Two-Stage Decoder for Pragmatic Trellis-Coded M-PSK Modulation Using a Symbol Transformation (Robert H Morelos-Zaragoza and Advait Mogre) Faculty Publications (2001)

A two-stage decoding procedure for pragmatic trellis-coded modulation (TCM) is introduced. It applies a transformation from the received I-channel and Q-channel samples onto points in a two-dimensional (2-D) signal space that contains a coset constellation. ...

Multilevel Coded Modulation for Unequal Error Protection and Multistage Decoding—Part I: Symmetric Constellations (Robert H Morelos-Zaragoza, Marc P. C. Fossorier, Shu Lin, et al.) Faculty Publications (2000)

In this paper, theoretical upper bounds and computer simulation results on the error performance of multilevel block coded modulations for unequal error protection (UEP) and multistage decoding are presented. It is shown that nonstandard signal ...

On the Error Performance of 8-VSB TCM Decoder for ATSC Terrestrial Broadcasting of Digital Television (Dojun Rhee and Robert H. Morelos-Zaragoza) Faculty Publications (2000)

The error performance of various 8-VSB TCM decoders for reception of terrestrial digital television is analyzed. In previous work, 8-state TCM decoders were proposed and implemented for terrestrial broadcasting of digital television. In this paper, ...

Constructions of Generalized Concatenated Codes and Their Trellis-Based Decoding Complexity (Robert H Morelos-Zaragoza, Toru Fujiwara, Tadao Kasami, et al.) Faculty Publications (1999)

In this correspondence, constructions of generalized concatenated (GC) codes with good rates and distances are presented. Some of the proposed GC codes have simpler trellis omplexity than Euclidean geometry (EG), Reed–Muller (RM), or Bose–Chaudhuri–Hocquenghem (BCH) ...

Binary Multilevel Convolutional Codes with Unequal Error Protection Capabilities (Robert H Morelos-Zaragoza and Hideki Imai) Faculty Publications (1998)

Binary multilevel convolutional codes (CCs) with unequal error protection (UEP) capabilities are studied. These codes belong to the class of generalized concatenated (GC) codes. Binary CCs are used as outer codes. Binary linear block codes ...

On Block-Coded Modulation Using Unequal Error Protection Codes Over Rayleigh-Fading Channels (Robert H Morelos-Zaragoza, Tadao Kasami, Shu Lin, et al.) Faculty Publications (1998)

This paper considers block-coded 8-phase-shift-keying (PSK) modulations for the unequal error protection (UEP) of information transmitted over Rayleigh-fading channels. Both conventional linear block codes and linear UEP (LUEP) codes are combined with a naturally labeled ...

Concatenated Multilevel Coded Modulation Schemes for Digital Satellite Broadcasting (Robert H Morelos-Zaragoza and Hideki Imai) Faculty Publications (1997)

The error performance of bandwith-efficient concatenated multilevel coded modulation (MCM) schemes for digital satellite broadcasting is analyzed. Nonstandard partitioning, multistage decoding, and outer Reed-Solomon (RS) codes are employed to provided unequal error protection capabilities.

Multilevel Block Coded Modulation with Unequal Error Protection (Robert H Morelos-Zaragoza, Marc P. C. Fossorier, Shu Lin, et al.) Faculty Publications (1997)

Multilevel block coded modulation (BCM) schemes with unequal error protection (UEP) are investigated. These schemes are based on unconventional set partitions that greatly reduce the error coefficients associated with multi-stage decoding of conventional BCM, at ...

Coded Modulation for Satellite Broadcasting (Robert H Morelos-Zaragoza, Oscar Y. Takeshita, Hideki Imai, et al.) Faculty Publications (1996)

In this paper, three-level block coded 8-PSK modulations, suitable for satellite broadcasting of digital TV signals, are presented. A design principle to achieve unequal error protection is introduced. The coding scheme is designed in such ...