Paper Info
Title
Efficient embedded signaling through DCT precoding matrix for SLM method in OFDM system
Abstract
Orthogonal frequency division multiplexing (OFDM) modulation technique is a promising transmission scheme for high performance broadband wireless communications. However, as a drawback, this scheme suffers from the high peak to average power ratio (PAPR) of the output signals. In order to overcome this issue, several methods requiring the transmission of side information SI bits have been proposed. The transmitted bits must be channel-encoded as they are particularly critical to the error performance of the OFDM system. This fact results in a high increase of the system complexity. Additionally, the wrong estimation of the SI leads to the damage on the total signal recovery and the loss of the entire OFDM sequence. For these reasons, we propose in this paper, a new robust technique based on selected mapping (SLM) scheme. The proposed method is based on a new form of embedded signaling such as the use of the discrete cosinus transform (DCT). Furthermore, we employ an optimized scheme during the estimation process, using the higher order statistics moments. Simulation results are given to illustrate the good performance of our proposed method and support our claim.
Year
DOI
Venue
2015
10.1109/COMNET.2015.7566625
2015 5th International Conference on Communications and Networking (COMNET)
Keywords
Field
DocType
Blind,BER,DCT,Embedded Signaling,Fourth Order Cumulant,OFDM,PAPR,SLM,Viterbi
Precoding matrix,Control theory,Computer science,Discrete cosine transform,Higher-order statistics,Signal recovery,Side information,Electronic engineering,Real-time computing,Modulation,Broadband wireless communications,Orthogonal frequency-division multiplexing
Conference
ISBN
Citations 
PageRank 
978-1-5090-0197-2
0
0.34
References 
Authors
9
3
Name
Order
Citations
PageRank
Mouna Sghaier173.04
Fatma Abdelkefi210423.90
Mohamed Siala37337.81