Indian Journal of Science and Technology

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Improvement in Time Varying Multipath Channel Estimation


Affiliations
1 Department of Electronics Engineering, I. K. Gujral Punjab Technical University, Near Pushpa Gujral Science City, Ibban, Kapurthala –144603, Punjab, India
2 Department of Electronics and Communication Engineering, Giani Zail Singh Campus College of Engineering and Technology is a Constituent College of Maharaja Ranjit Singh Punjab Technical University, Dabwali Road, Bathinda – 151001, Punjab, India
 

In this work, we propose a new algorithm that modifies the LS channel estimation technique by using a feedback LS channel estimator to improve upon its estimation capabilities and still retaining its simplicity. To examine its usefulness especially for wireless mobile applications, performance in terms of the symbol error rate is analyzed with varying Doppler frequency and delay parameters, which is found to be quite optimistic in comparison to LMMSE and LRMMSE algorithms.

Keywords

Doppler Shift, OFDM, Pilots Symbols, Symbol Error Rate
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  • Improvement in Time Varying Multipath Channel Estimation

Abstract Views: 211  |  PDF Views: 0

Authors

Harjeet Singh
Department of Electronics Engineering, I. K. Gujral Punjab Technical University, Near Pushpa Gujral Science City, Ibban, Kapurthala –144603, Punjab, India
Savina Bansal
Department of Electronics and Communication Engineering, Giani Zail Singh Campus College of Engineering and Technology is a Constituent College of Maharaja Ranjit Singh Punjab Technical University, Dabwali Road, Bathinda – 151001, Punjab, India

Abstract


In this work, we propose a new algorithm that modifies the LS channel estimation technique by using a feedback LS channel estimator to improve upon its estimation capabilities and still retaining its simplicity. To examine its usefulness especially for wireless mobile applications, performance in terms of the symbol error rate is analyzed with varying Doppler frequency and delay parameters, which is found to be quite optimistic in comparison to LMMSE and LRMMSE algorithms.

Keywords


Doppler Shift, OFDM, Pilots Symbols, Symbol Error Rate



DOI: https://doi.org/10.17485/ijst%2F2017%2Fv10i31%2F158373