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Content Provider | IET Digital Library |
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Author | Islam, Shama Naz Sadeghi, Parastoo Durrani, Salman |
Abstract | In this study, we analyse the error performance of decode and forward (DF) and amplify and forward (AF) multi-way relay networks (MWRNs). The authors consider a MWRN with pair-wise data exchange protocol using binary phase shift keying (BPSK) modulation in both additive white Gaussian noise (AWGN) and Rayleigh fading channels. The authors quantify the possible error events in an L-user DF or AF MWRN and derive accurate asymptotic bounds on the probability for the general case that a user incorrectly decodes the messages of exactly k (k ∈ [1, L − 1]) users. They show that at high signal-to-noise ratio (SNR), the higher order error events (k ≥ 3) are less probable in AF MWRN, but all error events are equally probable in a DF MWRN. They derive the average BER of a user in a DF or AF MWRN in both AWGN and Rayleigh fading channels under high SNR conditions. Simulation results validate the correctness of the derived expressions. The authors results show that at medium to high SNR, DF MWRN provides better error performance than AF MWRN in AWGN channels even with a large number of users (e.g. L = 100). Whereas, AF MWRN outperforms DF MWRN in Rayleigh fading channels even for much smaller number of users (e.g. L > 10). |
Starting Page | 1605 |
Ending Page | 1616 |
Page Count | 12 |
ISSN | 17518628 |
Volume Number | 7 |
e-ISSN | 17518636 |
Issue Number | Issue 15, Oct (2013) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-com/7/15 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-com.2013.0284 |
Journal | IET Communications |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | Additive White Gaussian Noise Channel AF MWRN Amplify And Forward Communication Amplify-and-forward Multiway Relay Network AWGN Channel BER Binary Phase Shift Keying Modulation Decode And Forward Communication Decode-and-forward Multiway Relay Network DF MWRN Error Analysis Error Analysis in Numerical Method Error Performance Analysis Error Statistics Modulation And Coding Method MWRN Pair-wise Data Exchange Protocol Phase Shift Keying Probability Protocol Radio Link And Equipment Rayleigh Channel Rayleigh Fading Channel Relay Network Signal to Noise Ratio Statistics Telecommunication |
Content Type | Text |
Resource Type | Article |
Subject | Electrical and Electronic Engineering Computer Science Applications |
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