Efficient Data Recovery scheme in PTS-Based OFDM systems with MATRIX Formulation
Sunil Karthick M and Venkatachalam. S. Article: Efficient Data Recovery scheme in PTS-Based OFDM systems with MATRIX Formulation. IJCA Proceedings on International Conference on Innovations In Intelligent Instrumentation, Optimization and Electrical Sciences ICIIIOES(1):20-24, December 2013. Full text available. BibTeX
@article{key:article,
author = {Sunil Karthick . M and Venkatachalam. S},
title = {Article: Efficient Data Recovery scheme in PTS-Based OFDM systems with MATRIX Formulation},
journal = {IJCA Proceedings on International Conference on Innovations In Intelligent Instrumentation, Optimization and Electrical Sciences},
year = {2013},
volume = {ICIIIOES},
number = {1},
pages = {20-24},
month = {December},
note = {Full text available}
}
Abstract
Partial transmit sequence (PTS) scheme is one of the peak-to-average power ratio (PAPR) reduction technique in OFDM systems. In the PTS scheme, in order to generate signals with low PAPR, one OFDM symbol is partitioned into disjointed sub-blocks, and each sub-block is multiplied by a phase factor. For data recovery, receivers must have side information (SI), e. g. , phase factors, from transmitters. In the proposed method, the data recovery process in PTS-based OFDM systems is performed without SI. An additional pilot symbol is intentionally inserted at the end of each sub-block, so that efficient data decoding based on channel estimation can be executed with known pilot symbols. Also in existing method the OFDM symbols are processed in sequence order, it is modified into matrix order in order to achieve a fast data transaction. The simulation results shows that the Bit Error Rate (BER) performance without SI is approximately the same as compared to the BER performance of the PTS scheme with perfect SI and a maximum likelihood decoding scheme.
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