A Joint Modulation-Coding Scheme and Resource Allocation in LTE Uplink

Amado Gutierrez; Victor Rangel; Javier Gomez; Robert M. Edwards; David H. Covarrubias

doi:10.5755/j01.eie.26.5.22313

Authors

Amado Gutierrez Engineering Faculty, National Autonomous University of Mexico
Victor Rangel Engineering Faculty, National Autonomous University of Mexico
Javier Gomez Engineering Faculty, National Autonomous University of Mexico
Robert M. Edwards 5G Research Centre, Loughborough University
David H. Covarrubias Ensenada Center for Scientific Research and Higher Education (CICESE)

DOI:

https://doi.org/10.5755/j01.eie.26.5.22313

Keywords:

Resource allocation, Scheduling algorithms, Modulation coding, LTE-A, SC-FDMA, 3GPP

Abstract

In Long Term Evolution (LTE) Resource Allocation Algorithms (RAAs) are an area of work where researchers are seeking to optimize the efficient use of scarce radio resources. The selection of an optimal Modulation and Coding Scheme (MCS) that allows LTE to adapt to channel conditions is a second area of ongoing work. In the wireless part of LTE, these two factors, RAA and MCS selection, are the most critical in optimization. In this paper, the performance of three resource allocation schemes is compared, and a new allocation scheme, Average MCS (AMCS) allocation, is proposed. AMCS is seen to outperform both “Minimum MCS (MMCS)” and “Average Signal to Interference and Noise Ratio MCS (SINR AMCS)” in terms of improvements to LTE Uplink (UL) performance. The three algorithms were implemented in the Vienna LTE-A Uplink Simulator v1.5.

Author Biographies

Amado Gutierrez, Engineering Faculty, National Autonomous University of Mexico

He received his B.Sc. degree in Electronics and Communications and received his M.Sc. degree in Science and InformationTechnology from Metropolitan Autonomous University (UAM), Iztapalapa México in 2006 and 2014, respectively. Currently, he is a Ph.D. student at the Department of Telecommunications, National Autonomous University of Mexico(UNAM). His research interests are in areas of wireless communications technology and LTE scheduling.

Victor Rangel, Engineering Faculty, National Autonomous University of Mexico

He received his B.Sc. (Hons) degree in Computer Engineering from the National Autonomous University of Mexico (UNAM) in 1996. He received his M.Sc. and Ph.D. degrees in Telematics from the University of Sheffield, U.K. in 1998 and 2002, respectively. He is a full-time Research-Professor at the Department of Telecommunications at the School of Engineering (UNAM). His research focuses on QoS, traffic modelling and scheduling for mobile broadband wireless access networks.

Javier Gomez, Engineering Faculty, National Autonomous University of Mexico

He received his B.Sc. degree with honors in Electrical Engineering in 1993 from the National Autonomous University of Mexico (UNAM). He received his M.Sc. and Ph.D., degrees in Electrical Engineering from the Columbia University, USA and its COMET Group in 1996 and 2002, respectively. He worked at IBM’s T. J. Watson Research Center. He is a full-time Research-Professor at the Department of Telecommunications at the School of Engineering (UNAM). His research interests cover routing, QoS, and MAC design for wireless ad hoc, sensor and mesh networks.

Robert M. Edwards, 5G Research Centre, Loughborough University

He received his degree in Electronic Engineering (Communications) from the University of Sheffield, and then studied for a Ph.D. with the Department’s internationally respected Communications and Radar Group. He is now director of the 5G Research Centre at Loughborough University UK and is the lead in the universities Mobile Communications expertise.

David H. Covarrubias, Ensenada Center for Scientific Research and Higher Education (CICESE)

He received his B.Sc. degree in Electrical Engineering from the National Autonomous University of Mexico (UNAM) in 1978. He received his M.Sc. degrees in Telecommunications from CICESE in 1982 and obtained his Ph.D. degree in Telecommunications from the Polytechnic University of Catalonia, Barcelona, Spain in 1999. He served as a Research Fellow at the Center for Scientific Research and Higher Education of Ensenada (CICESE), Baja California, Mexico. He has investigated cellular mobile communications, providing state of art in the areas of synthesis array antennas, source localization algorithms, and space-time precoders. He currently works at the Technology Platform 5G Wireless Communications that oversees the development and regulation of the next cellular mobile communications generation.