NDLI: Blind SLM for PAPR reduction of Alamouti DSFBC systems

Content Provider	IET Digital Library
Author	Fallahzadeh, Milad Ferdosizadeh, Mahmoud
Abstract	The combination of differential space–time block codes and orthogonal frequency-division multiplexing (OFDM) as differential space–frequency block coded (DSFBC)-OFDM system is a good candidate to achieve maximum diversity without the need to channel estimation. High peak-to-average-power ratio (PAPR) is a major drawback in these systems. The available PAPR reduction methods are not directly applicable in DSFBC-OFDM system. In this study, the proper application of selected mapping (SLM) method for reducing PAPR in Alamouti DSFBC-OFDM system is investigated and two different schemes are presented: conventional SLM (C-SLM) and blind differential SLM (BD-SLM). In C-SLM technique, the index of the selected phase sequence must be sent to the receiver side as the side information (SI). In the proposed BD-SLM method, specific phase mask vectors are generated with one-to-one correspondence with the different phase rotation sequences. Then at the receiver side, a differential minimum Hamming distance decoder is introduced to detect the index of optimum phase mask vectors without SI. Simulation results show that the proposed BD-SLM scheme (without the need to SI) provides good performances of both the bit error rate and PAPR reduction compared with C-SLM method.
Starting Page	451
Ending Page	457
Page Count	7
ISSN	17518628
Volume Number	11
e-ISSN	17518636
Issue Number	Issue 3, Feb (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/11/3
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2016.0340
Journal	IET Communications
Publisher Date	2017-02-16
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Alamouti DSFBC-OFDM System BD-SLM Technique Bit Error Rate Blind Differential SLM Technique Blind SLM C-SLM Technique Code Conventional SLM Technique Decoding Differential Minimum Hamming Distance Decoder Differential Space-frequency Block Coded OFDM System Differential Space-time Block Codes Diversity Reception Hamming Code OFDM Modulation One-to-one Correspondence Optimum Phase Mask Vector Orthogonal Frequency-division Multiplexing PAPR Reduction Peak-to-average-power Ratio Phase Mask Vector Phase Rotation Sequence Phase Sequence Radio Link And Equipment Selected Mapping Method Space-time Block Code
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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