NDLI: Data-assisted channel estimation and performance analysis for two-way amplify-and-forward relay networks with M-ary frequency shift keying modulation

Content Provider	IET Digital Library
Author	Masjedi, Maryam Hoseini, Ali M. Doost
Abstract	In this study, a new method is proposed for channel estimation and symbol detection in amplify-and-forward two-way relay networks with frequency shift keying signalling, over block fading as well as time-varying Rayleigh flat fading channels. It relies solely on information symbols to estimate reciprocal and non-reciprocal channels without pilot symbols assistance. To achieve this goal, users apply known periodic phase shifts to their transmit symbols and adopt maximum likelihood or linear minimum mean square error criteria to discriminate and estimate the two composite channels. Optimal and suboptimal phase shifts are designed to minimise the mean square error (MSE). Minimum distance receiver is then used for symbol detection. An approximate upper bound for the resulting bit error rate (BER) is derived and the effect of channel variation rate on the MSE and BER is studied. Finally, simulation results are provided to verify the effectiveness of the suggested method.
Starting Page	2242
Ending Page	2252
Page Count	11
ISSN	17518628
Volume Number	9
e-ISSN	17518636
Issue Number	Issue 18, Dec (2015)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/9/18
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2015.0164
Journal	IET Communications
Publisher Date	2015-12-17
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Amplify And Forward Communication BER Bit Error Rate Block Fading Channel Estimation Channel Variation Rate Communication Channel Equalisation And Identification Data-assisted Channel Estimation Error Statistics Frequency Shift Keying Frequency Shift Keying Signalling Interpolation And Function Approximation Linear Minimum Mean Square Error Criteria M-ary Frequency Shift Keying Modulation Maximum Likelihood Criteria Maximum Likelihood Estimation Mean Square Error Method Minimum Distance Receiver Modulation And Coding Method Nonreciprocal Channel Numerical Analysis Performance Analysis Radio Link And Equipment Rayleigh Channel Relay Network Statistics Suboptimal Phase Shift Symbol Detection Telecommunication Time-varying Channel Time-varying Rayleigh Flat Fading Channel Transmit Symbols Two Way Amplify And Forward Relay Network
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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