Abonnement à la biblothèque: Guest
Portail numérique Bibliothèque numérique eBooks Revues Références et comptes rendus Collections
Telecommunications and Radio Engineering
SJR: 0.202 SNIP: 0.2 CiteScore™: 0.23

ISSN Imprimer: 0040-2508
ISSN En ligne: 1943-6009

Volumes:
Volume 78, 2019 Volume 77, 2018 Volume 76, 2017 Volume 75, 2016 Volume 74, 2015 Volume 73, 2014 Volume 72, 2013 Volume 71, 2012 Volume 70, 2011 Volume 69, 2010 Volume 68, 2009 Volume 67, 2008 Volume 66, 2007 Volume 65, 2006 Volume 64, 2005 Volume 63, 2005 Volume 62, 2004 Volume 61, 2004 Volume 60, 2003 Volume 59, 2003 Volume 58, 2002 Volume 57, 2002 Volume 56, 2001 Volume 55, 2001 Volume 54, 2000 Volume 53, 1999 Volume 52, 1998 Volume 51, 1997

Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v74.i14.30
pages 1257-1268

SUPPRESSION OF MULTIPLE ACCESS INTERFERENCE IN UPLINK OFDMA OF MOBILE WiMAX

M. Lakshmanan
VIT University, Vellore, India; Galgotias College of Engineering and Technology, Greater Noida 201 310, Uttar Pradesh, India
P. S. Mallick
VIT University, Vellore, Tamil Nadu, India
L. Nithyanandan
Pondicherry Engineering College, Pondicherry, India

RÉSUMÉ

In Orthogonal Frequency Division Multiple Access (OFDMA), a set of orthogonal subcarriers has been assigned to each user for simultaneous data transmission. OFDMA is more sensitive to synchronization errors that lead to Carrier Frequency Offset (CFO) at the base station receiver. This results in Multiple Access Interference (MAI) and Inter Carrier Interference (ICI) which leads to degradation in the performance of Mobile WiMAX system. In this paper, a novel Fuzzy minimum output energy (MOE) receiver for uplink OFDMA in Mobile WiMAX system is proposed. The proposed receiver consists of Coarse CFO estimator, Fuzzy CFO constrained detector, Maximum Ratio Combiner (MRC) and Signal Subspace Projection techniques. Fuzzy CFO constrained detector collects multipath energy and suppresses MAI. It ensures the suppression of MAI and ICI, thereby improving the performance of Mobile WiMAX system. Simulation results show that the proposed Fuzzy MOE receiver has better performance in Frequency Mean Square Error (FMSE) than Zeng and Leyman (ZL) and Zhao and Haggman (ZH) algorithms.


Articles with similar content:

INTERFERENCE CANCELLATION BASED MMSE DFE WITH MULTIPLE ANTENNAS FOR WIDEBAND CDMA (WCDMA)
Telecommunications and Radio Engineering, Vol.69, 2010, issue 7
Saniay Kumar Sharma, S. Naseem Ahmad
APPLICATION OF SOFTWARE COMPLEX FOR QUERY PROCESSING IN THE DATABASE MANAGEMENT SYSTEM WITH NOVEL NOISE RESISTANT BISPECTRUM-ORGANIZED MODULATION TECHNIQUE IN DIGITAL WIRELESS COMMUNICATION SYSTEMS
Telecommunications and Radio Engineering, Vol.72, 2013, issue 18
V. V. Naumenko, A. V. Totsky, J. T. Astola, Karen O. Egiazarian
LOCAL-QUADRATIC MAP-DRIFT AUTOFOCUS FOR SYNTHETIC APERTURE RADARS
Radio Physics and Radio Astronomy, Vol.3, 2012, issue 4
Dmitry M. Vavriv, I. M. Gorovyi, O. O. Bezvesilniy
ANALYSIS OF ICI CANCELLATION IN MC-CDMA SYSTEM USING SELF-CANCELLATION AND EXTENDED KALMAN FILTER METHOD
Telecommunications and Radio Engineering, Vol.76, 2017, issue 7
S. Nandakumar, V. Noor Mohammed, S. K. Jayanth Prabu, M. Lakshmanan, M. Palanivelan, T. Velmurugan
BEAMFORMING BASED ON SLR FOR UPLINK CHANNEL IN MU-MIMO SYSTEM AND DETECTION DESIGN
Telecommunications and Radio Engineering, Vol.78, 2019, issue 13
C. Ciftlikli, M. Al-Obaidi, W. Al-Obaidi