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SVD -Low Complexity Channel Estimation in IEEE 802. 16e-DL-PUSC System

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IJCA Proceedings on National Conference on Advances in Communication and Computing
© 2014 by IJCA Journal
NCACC 2014 - Number 2
Year of Publication: 2014
Authors:
Mehul V. Desai
Shilpi Gupta
Upena D. Dalal

Mehul V Desai, Shilpi Gupta and Upena D Dalal. Article: SVD -Low Complexity Channel Estimation in IEEE 802.16e-DL-PUSC System. IJCA Proceedings on National Conference on Advances in Communication and Computing NCACC(2):1-5, December 2014. Full text available. BibTeX

@article{key:article,
	author = {Mehul V. Desai and Shilpi Gupta and Upena D. Dalal},
	title = {Article: SVD -Low Complexity Channel Estimation in IEEE 802.16e-DL-PUSC System},
	journal = {IJCA Proceedings on National Conference on Advances in Communication and Computing},
	year = {2014},
	volume = {NCACC},
	number = {2},
	pages = {1-5},
	month = {December},
	note = {Full text available}
}

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

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