NDLI: Modelling, analysis and performance comparison of two direct sampling DCSK receivers under frequency non-selective fading channels

Content Provider	IET Digital Library
Author	Quyen, Nguyen Xuan Duong, Trung Q. Nallanathan, Arumugam
Abstract	Two direct sampling correlator-type receivers for differential chaos shift keying (DCSK) communication systems under frequency non-selective fading channels are proposed. These receivers operate based on the same hardware platform with different architectures. In the first scheme, namely sum-delay-sum (SDS) receiver, the sum of all samples in a chip period is correlated with its delayed version. The correlation value obtained in each bit period is then compared with a fixed threshold to decide the binary value of recovered bit at the output. On the other hand, the second scheme, namely delay-sum-sum (DSS) receiver, calculates the correlation value of all samples with its delayed version in a chip period. The sum of correlation values in each bit period is then compared with the threshold to recover the data. The conventional DCSK transmitter, frequency non-selective Rayleigh fading channel, and two proposed receivers are mathematically modelled in discrete-time domain. The authors evaluated the bit error rate performance of the receivers by means of both theoretical analysis and numerical simulation. The performance comparison shows that the two proposed receivers can perform well under the studied channel, where the performances get better when the number of paths increases and the DSS receiver outperforms the SDS one.
Starting Page	1263
Ending Page	1272
Page Count	10
ISSN	17518628
Volume Number	10
e-ISSN	17518636
Issue Number	Issue 11, Jul (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/10/11
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2015.1103
Journal	IET Communications
Publisher Date	2016-07-21
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Bit Error Rate Performance Correlation Method DCSK Communication System DCSK Transmitter Delay-sum-sum Receiver Differential Chaos Shift Keying Communication System Direct Sampling Correlator-type Receiver Direct Sampling DCSK Receiver Discrete-time Domain Analysis DSS Receiver Error Statistics Frequency Nonselective Rayleigh Fading Channel Mathematical Model Numerical Analysis Numerical Method Numerical Simulation Radio Link And Equipment Radio Receiver Radio Transmitters Rayleigh Channel Sampling Method SDS Receiver Statistics Sum-delay-sum Receiver Time Domain Analysis
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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