NOVEL MULTIPLE LEVEL SUBCARRIER ALLOCATION SCHEME IN SC-FDMA FOR LTE-A UPLINK

Authors

  • Mohamed Melood A. Abdased Faculty of Engineering & Built Environment, University Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
  • Mahamod Ismail Faculty of Engineering & Built Environment, University Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
  • Rosdiadee Nordin Faculty of Engineering & Built Environment, University Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia

DOI:

https://doi.org/10.11113/jt.v78.7432

Keywords:

LTE-A, OFDMA, SC-FDMA, IFDMA, GIFDMA

Abstract

Long Term Evolution-Advanced (LTE-A) uses Single-Carrier Frequency Division Multiple Accesses (SC-FDMA) for uplink, because it has robust performance against the Peak Average Power Ratio (PAPR), compared to Orthogonal Frequency Division Multiple Access (OFDMA). SC-FDMA schemes include Interleaved FDMA (IFDMA) and Localized FDMA (LFDMA), both of which are commonly practiced in LTE-A uplink. IFDMA allocates distributed frequency carriers for users, whereas LFDMA allocates localized frequency carriers for users. The frequency allocation in an IFDMA scheme exhibits better PAPR performance, whereas the advantage of LFDMA is its lower complexity requirements. In this paper, a new scheme is introduced that integrates IFDMA and LFDMA by using a variable interleave allocation of subcarriers in the bandwidth. Here, Generalized Interleaved Frequency Division Multiple Accesses (GIFDMA), is used as a master key that controls the allocation for interleaved and localized FDMA, also known as L/I FDMA. This integration of IFDMA and LFDMA has been derived theoretically and empirically. Simulations are conducted to investigate the effect of different parameters on the GIFDMA PAPR performance, which is compared to that of conventional IFDMA and LFDMA. The simulation results revealed that the proposed GIFDMA provides PAPR performance comparable to that of both LFDMA and IFDMA.

Author Biographies

  • Mohamed Melood A. Abdased, Faculty of Engineering & Built Environment, University Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia

    Biography: Mohamed Melood A. Abdased  received his Bachelor Degree in Telecommunication  from Civil Aviation Higher Institute Libya  After completed his ten (10) years working experience with a telecommunication company, he decided to pursue MSc. degree in Master of Engineering ( communication and computer) at the University of UKM, Malaysia After completed his Three(3) years working experience as a lecturer with university in Libya  and he decided is currently PhD student in department of Electric, Electronic and System Engineering Faculty of Engineering and Built Environment Universiti Kebangsaan Malaysia (UKM) His main research Wireless Communication.

  • Mahamod Ismail, Faculty of Engineering & Built Environment, University Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
    Biography:Mahamod Ismail (mahamod@eng.ukm.my) joined the Department of Electrical, Electronics and System Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia (UKM) in 1985 and currently he is a Professor in Communication Engineering. He received the B.Sc. degree in Electrical and Electronics from University of Strathclyde, U.K. in 1985, the M.Sc. degree in Communication Engineering and Digital Electronics from University of Manchester Institute of Science and Technology (UMIST), Manchester U.K. in 1987, and the Ph.D. from University of Bradford, U.K. in 1996. He was with the first Malaysia Microsatellite TiungSat Team Engineers in Surrey Satellite Technology Ltd. U.K. from June 1997 until March 1998. In the summer semester 2003, he served as a Guest Professor in Computer Engineering in the University of Duisburg-Essen, Duisburg Germany funded by the German Academic Exchange Services (DAAD). His research interests include mobile and satellite communication, and wireless networking particularly on the radio resource management for the next generation wireless communication network. He is a Senior Member of the Institute of Electrical and Electronics Engineers (IEEE) USA, and currently Chair of IEEE Malaysia Section
  • Rosdiadee Nordin, Faculty of Engineering & Built Environment, University Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
    Biography: Rosdiadee Nordin received his Bachelor Degree in Electrical, Electronics and System Engineering from Universiti Kebangsaan Malaysia in 2001. After completed his five (5) years working experience with a telecommunication company, he decided to pursue Ph.D. degree in Wireless Engineering at the University of Bristol, United Kingdom and completed his study in 2011. He is currently a senior lecturer in the Department of Electrical, Electronic and Systems Engineering at Universiti Kebangsaan Malaysia, a senior member of IEEE and a registered professional engineer in Malaysia. His research interests include TV White Space, cognitive radio, resource allocation, green radio and beyond Fourth Generation (B4G) wireless network

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Published

2016-07-25

Issue

Section

Science and Engineering

How to Cite

NOVEL MULTIPLE LEVEL SUBCARRIER ALLOCATION SCHEME IN SC-FDMA FOR LTE-A UPLINK. (2016). Jurnal Teknologi, 78(8). https://doi.org/10.11113/jt.v78.7432