Performance analysis of two‐way decode‐and‐forward relaying in the presence of co‐channel interferences

This study investigates the performance of two‐way decode‐and‐forward (DF) relaying networks, considering transmissions over independent but not necessarily identically distributed (i.n.i.d.) Rayleigh fading channels, in the presence of multiple co‐channel interferers at both the relay and end‐sourc...

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Bibliographic Details
Published in:IET communications 2014-12, Vol.8 (18), p.3349-3356
Main Authors: Hataminia, Sajad, Vahidian, Saeed, Mohammadi, Mohammadali, Ahmadian‐Attari, Mahmoud
Format: Article
Language:English
Subjects:
Asymptotic properties
Channels
cochannel interference
cochannel interferences
Computer simulation
cumulative distribution function
decode and forward communication
distributed Rayleigh fading channels
end‐source nodes
equivalent signal‐to‐interference‐plus‐noise ratio
error statistics
Exact solutions
Fading
Mathematical analysis
Monte Carlo methods
Monte Carlo simulations
Rayleigh channels
Relay
relay networks (telecommunication)
relay nodes
Relaying
symbol error probability
two‐way decode‐and‐forward relaying
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Summary:This study investigates the performance of two‐way decode‐and‐forward (DF) relaying networks, considering transmissions over independent but not necessarily identically distributed (i.n.i.d.) Rayleigh fading channels, in the presence of multiple co‐channel interferers at both the relay and end‐source nodes. Both asymmetrical and symmetrical cases, of whether the channels from source terminals to the relay are identically distributed or not, are considered. Specifically, closed‐form expressions for the cumulative distribution function of the equivalent signal‐to‐interference‐plus‐noise ratio (SINR) in different cases are derived, based on which the exact symbol error probability (SEP) and the systems’ achievable rate are derived and analysed. Based on the analytic results, the authors study the impacts of system parameters, such as interference power and number of interferers on the performance of the system. Furthermore, the system behavior at high signal‐to‐noise ratio (SNR) values is studied via deriving the asymptotic SEP. The results of this study are attested through Monte Carlo simulations.
ISSN:1751-8628
1751-8636
1751-8636
DOI:10.1049/iet-com.2014.0592