Open Access
Subscription or Fee Access
Performance Enhancement of Mobile WiMAX using TimeFrequency Training OFDM Scheme
Abstract
ABSTRACT Mobile WiMAX, IEEE 802.16 m is a Wireless Metropolitan Area Network offering a mobile broadband internet service. It uses cyclic prefix OFDMA (CP-OFDMA) as a multiple access scheme. CP-OFDMA embeds a large number of pilot subcarriers in OFDMA symbol for channel estimation purpose, reducing the data rate and spectral efficiency of mobile WiMAX system. This paper suggests the application of time-frequency training OFDM (TFT –OFDM) as a modulation and multiplexing technique for IEEE 802.16 m. TFT–OFDM employs a PN sequence as guard interval and grouped pilots for computing channel response. Timefrequency training OFDM scheme along with compressed sensing technique uses less number of pilots for channel estimation, enhancing the data rate and spectral efficiency of mobile WiMAX. This paper provides comparative study of Mobile WiMAX using TFTOFDM with CP-OFDM for different vehicular speed. Simulation results demonstrate that TFT- OFDM outperforms CP-OFDM scheme for bit error rate (BER) performance in a multipath channel conditions. TFT-OFDM improves spectral efficiency by 0.47bps/Hz and the data rate by 4.73Mbps for guard interval 1/4.
Keywords: BER, CP-OFDMA, Mobile WiMAX, TFT-OFDM.
Cite this Article: S.K. Malave, D.M. Yadav, A.S. Shirsat. S.K. Malave, D.M. Yadav, A.S. Shirsat. International Journal of Telecommunications & Emerging Technologies. 2020; 6(1): 20–31p
References
Rohde Schwarz, “IEEE 802.16m
Technology Introduction (IEEE
16 m Technology Introduction |
MA167),”White Paper, version: 3e,
pp. 1-41,July 2010.
Intel Corporation, “WiMAX and the
IEEE 802.16m Air Interface
Standard,”WiMAX Forum, Available:
http://files.wimaxforum.org/Docume
nt/Download/WiMAX_IEEE_802.16
m_Air_Interface_Standard, pp.1-
,2010.
Sassan Ahmadi. “An Overview of
Next Generation Mobile WiMAX
Technology,” IEEE Communication
Magazine, DOI: 10.1109/MCOM.
5116805, Volume: 47, Issue: 6,
June 2009.
X.Yuan, Q. Guo, X. Wang, and L.
Ping,“ Evaluation Analysis of low-
cost iterative evaluation in coded
linear systems with cyclic prefixes. ”I
EEE Journal on Selected Areas
Commun.,vol. 26,no.2,pp.301-310,
B. Muquet, Z. Wang, G. Giannakis, M.
De Courville, and P. Duhamel,“Cyclic
prefixing or zero padding for wireless
multicarrier broadcasting. “IEEE
Trans. Commun. vol.50, no.12, pp.
-2148, 2008.
J. Wang, Yang, C. Pan, and J. Song,”
Iterative padding subtraction of the
PN sequence for the TDS-OFDM
over broadcast channels,”IEEE
Trans. Consum. Electron.vol.51,
no.11, pp.1148–1152,2005.
Linglong Dai, Zhaocheng Wang, and
ZhixingYang, “Time-frequency
training OFDM with high spectral
efficiency and reliable performance
in high-speed environments.” IEEE J.
Sel. Areas Commun., vol.30, no.4, pp.
-706, 2012.
Khushaboo Singh and Aditya Trivedi,
“Performance of STBC based time-
frequency training OFDM over fast
fading channels.” IEEE Conference
on Advance Computing Conference
(IACC), Gurgaon, India, pp.958-
,2014.
Linglong Dai, Zhaocheng Wang, and
Zhixing Yang, “Compressive sensing
based time domain synchronous
OFDM transmission for vehicular
communication,”IEEE J. Sel. Areas
Commun, ol.31, no.9, pp.460-469,
Linglong Dai, Zhaocheng Wang, and
Zhixing Yang,“Joint Time-Frequency
Channel Estimation for Time Domain
Synchronous OFDM Systems, IEEE
Transactions on Broadcasting,
vol.59,no. 1,pp.168-172, 2013.
Akanksha Sharma, Lavish Kansal,
Gurjot Singh Gaba, Mohamed El
Bakkali, and Faisal
EmTubbal,“Performance Analysis of
Receiver Diversity Incorporated
WiMAX Systems.” International
Conference on Advanced Informatics
for Computing Research (ICAICR), vol
pp.270-281, Springer, Singapore
H. Kasban, Mohsen A. M. Mohamed,
Kaseem El-Bendary, “Performance
Improvement of Digital Image
Transmission over Mobile WiMAX
Networks,” Wireless Pers. Commun.,
vol.94,no.3, pp.1087–1103, 2017.
Wassan K Saad, Mohammad
Rosdiadee N, and Ibraheem
Shayea,“Throughput Performance of
Adaptive Modulation and Coding Scheme with Link Adaption for
MIMO-WiMAX Downlink
Transmission,” Journal of Asian
Scientific Research, vol.2, no.11,
pp.641-650,2012.
G. Zaggoulos, A. Nix, and A.
Doufexi, “WiMAX System
Performance in highly mobile
scenarios with directional antennas.
IEEE 18th International Symposium
on Personal, Indoor, and Mobile
Radio Commun., PIMRC 2007, pp.1-
, Athens, Greece 2007.
Zahran Shakari and Waheed U. Bajwa,
“Deterministic selection of pilot tones
for compressive estimation of MIMO-
OFDM channels,” IEEE Conference
on Information Sciences and Systems
(CISS), Baltimore, MD, USA, pp.1-6,
Xiaoguang Wu, Guixia Kang, Tian
Tang, Ping Zhang, and Mingyu Zhou,
“A Pilot Assisted Channel Estimation
Method for OFDM Systems in Time-
Varying Channels.”IEEE 18th
International Symposium on
Personal, Indoor and Mobile Radio
Commun., (PIMRC 2007), pp.1-5,
Athens, Greece 2007.
Wenbo Ding, FangYang, Changong
Pan, Linglong Dai, and JianSong,
“Compressive sensing based channel
estimation for OFDM systems under
long delay channel.” IEEE Trans.
Broadcast., vol.60, no.2, PP:
–321, 2014.
Patrick Maechler, Pierre Greisen,
Benjamin Sporrer, Sebastian Steiner,
Norbert Felber, and Andreas Burg,
“Implementation of greedy
algorithms for LTE sparse channel
estimation.44 th Asilomar Conference
on Signals, Systems and Computers,
pacific grove, California, pp.400-405,
Linglong Dai, Zhaocheng Wang, and
Zhixing Yang. “Compressive sensing
based time domain synchronous
OFDM transmission for vehicular
communication. IEEE J. Sel. Areas
Commun., vol. 31, no.9, pp.460-469,
Guideline for the evaluation of Radio
Transmission Technology for IMT
, Recommendation ITU-R
M.1225, Available at https://
www.itu.int/dms_pubrec/itu-r/rec/m/R-
REC-M.1225-0-199702-I!!PDF-E.pdf
(Question ITU-R 39/8), pp.1-60, 1997.
Sassan Ahmadi, Roshni M. Srinivasan,
Hokyu Choi, Jeongho Park, Jaeweon
Cho, D.S. Park, and Louay
Jalloul,“Channel Models for IEEE
16 m Evaluation Methodology
Document,” pp.1-9, 2007.
DOI: https://doi.org/10.37628/ijtet.v6i1.1288
Refbacks
- There are currently no refbacks.