Performance of Two-Way Opportunistic Relaying With Analog Network Coding Over Nakagami- m Fading

In this paper, we evaluate the performance of an outage-optimal two-way opportunistic relaying (TWOR) scheme with analog network coding (ANC) over independent but not necessarily identically distributed (i.ni.d.) Nakagami- m fading channels. Considering arbitrary integer-valued fading parameters ove...

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Vydáno v:IEEE transactions on vehicular technology Ročník 60; číslo 4; s. 1965 - 1971
Hlavní autoři: Upadhyay, Prabhat K, Prakriya, Shankar
Médium: Journal Article
Jazyk:angličtina
Vydáno: IEEE 01.05.2011
Témata:
Analog network coding (ANC)
AWGN
Channels
Coding
Fading
Mathematical analysis
Mathematical models
Nakagami- m fading
Network coding
Networks
outage probability
Outages
Probability
Rayleigh channels
Relaying
Relays
Signal to noise ratio
two-way opportunistic relaying (TWOR)
ISSN:0018-9545, 1939-9359
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Shrnutí:In this paper, we evaluate the performance of an outage-optimal two-way opportunistic relaying (TWOR) scheme with analog network coding (ANC) over independent but not necessarily identically distributed (i.ni.d.) Nakagami- m fading channels. Considering arbitrary integer-valued fading parameters over the two hops, we derive an exact outage expression that is applicable for the entire range of signal-to-noise ratio (SNR). For better insights, we provide simple closed-form expressions at high SNR for bounds on the outage probability and on the ergodic sum-rate of the scheme. We show that the achievable diversity order is equal to the minimum of the per-hop fading parameters times the number of relaying candidates. Numerical and simulation results are presented to illustrate the theoretical analysis and the effects of the various Nakagami fading conditions on the overall system performance.
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ISSN:0018-9545
1939-9359
DOI:10.1109/TVT.2011.2116163