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SVD -Low Complexity Channel Estimation in IEEE 802.16e-DL-PUSC System

Published on December 2014 by Mehul V. Desai, Shilpi Gupta, Upena D. Dalal
journal_cover_thumbnail

National Conference on Advances in Communication and Computing
Foundation of Computer Science USA
NCACC2014 - Number 2
December 2014
Authors: Mehul V. Desai, Shilpi Gupta, Upena D. Dalal
dc71c5f3-f1e6-4ad3-af41-bc531e296604

Mehul V. Desai, Shilpi Gupta, Upena D. Dalal . SVD -Low Complexity Channel Estimation in IEEE 802.16e-DL-PUSC System. National Conference on Advances in Communication and Computing. NCACC2014, 2 (December 2014), 1-5.

@article{
author = { Mehul V. Desai, Shilpi Gupta, Upena D. Dalal },
title = { SVD -Low Complexity Channel Estimation in IEEE 802.16e-DL-PUSC System },
journal = { National Conference on Advances in Communication and Computing },
issue_date = { December 2014 },
volume = { NCACC2014 },
number = { 2 },
month = { December },
year = { 2014 },
issn = 0975-8887,
pages = { 1-5 },
numpages = 5,
url = { /proceedings/ncacc2014/number2/19124-2015/ },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Proceeding Article
%1 National Conference on Advances in Communication and Computing
%A Mehul V. Desai
%A Shilpi Gupta
%A Upena D. Dalal
%T SVD -Low Complexity Channel Estimation in IEEE 802.16e-DL-PUSC System
%J National Conference on Advances in Communication and Computing
%@ 0975-8887
%V NCACC2014
%N 2
%P 1-5
%D 2014
%I International Journal of Computer Applications
Abstract

802. 16e system support high data rate transfer but at the same time user has high mobility and due to this effect,the channel response may vary rapidly. Also pilot signals are usually limited in comb type arrangement to perform interpolation. So to perform channel estimation and interpolation with low complexity in high mobility scenario is the challenging problem. In this paper channel estimation of system is carried out by finding Channel Impulse Response (CIR) of pilot sub-carrier using LS, LMMSE and SVD algorithms and then finding Channel Frequency Response (CFR) at data sub-carrier is done by time and frequency Interpolation of Pilot CIR. This paper presents BER and MSE performance for 16QAM and 64QAM Coded OFDM System(C-OFDM) evaluated on standard channel ITU-A and ITUB. Results show that by using low complexity SVD algorithm gives better performance than LS and LMMSE at lower SNR.

References
  1. Shilpi Gupta , Mehul V. Desai and Upena D. Dalal, "Comparison of Channel Estimation in Mobile WiMAX (IEEE 802. 16e) DL-PUSC System,", International Journal of Computer Applications, Published by Foundation of Computer Science, New York, USA Vol. 84, Number 7, Dec 2013, pp. 18-21.
  2. S. Y. Hui and K. H. Yeung, "Challenges in the Migration to 4G Mobile Systems,", IEEE Communications Magazine, Vol. 41, Issue 12, Dec 2003, pp. 54-59.
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  4. Upena Dalal , "Wireless Communications,", Oxford Higher Education, April. 2010
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  7. Aida Zaier, Ridha Bouallegue, "Channel Estimation Study for Block-Pilot Insertion in OFDM Systems Under Slowly Time Varying Conditions,", International Journal of Computer Networks and Communications, Vol. 3, No. 6, Nov 2011
  8. Savitri Galih, Riafeni Karlina, Fifin Nugroho, Ade Irawan, Trio Adiono, Adit Kurniawan, "Low Complexity Down-Sampled MMSE(DMMSE) Channel Estimation for Downlink OFDMA IEEE 802. 16e System,", IEEE International Conference, Vol. 40, Issue 6, 2009, pp. 273-277.
  9. Masrul Faizal Moamad, Mohmmed Abdo Saeed and Akhmad Unggul Printoro, "Downlink Channel Estimation and Tracking in Mobile WiMAX Systems,", IEEE Proceeding of the International Conference and Communication Engineering, Vol. 9, May 13-15,2008,pp. 1340-1343.
  10. Savitri Galin, Riafeni Karlina, Fifin Nugroho and Ade Irawan, "High Mobility Data Pilot Based channel Estimation for Downlink OFDMA System Based on IEEE 802. 16e Standard,", IEEE International Conference on Electrical Engineering and Informatics , Vol . 9 Singapore, 2009,pp-478-483.
Index Terms

Computer Science
Information Sciences

Keywords

Coded Ofdm System (c-ofdm) Channel Estimation Ls (least Square Estimation) Lmmse (linear Minimum Mean Square Error) Svd (singular Value Decomposition) Channel Impulse Response (cir) Channel Frequency Response (cfr) Down-link Partially Used Sub Channelization (dl-pusc)