In this paper, we examine multi-source multi-relay
systems that employ Analog Network Coding for which we
provide a two-fold contribution: i) We derive a closed-form
upper bound of the average symbol error rate (SER) per source
of the system, which is shown to be tight in the high-Signalto-
Noise Ratio (SNR) region, especially for a high number of
relays, and ii) based on this bound, for a given total power
budget to be distributed among the source and relay nodes we
formulate the power allocati...
In this paper, we examine multi-source multi-relay
systems that employ Analog Network Coding for which we
provide a two-fold contribution: i) We derive a closed-form
upper bound of the average symbol error rate (SER) per source
of the system, which is shown to be tight in the high-Signalto-
Noise Ratio (SNR) region, especially for a high number of
relays, and ii) based on this bound, for a given total power
budget to be distributed among the source and relay nodes we
formulate the power allocation optimization problem with the
aim of minimizing the SER per source. Results show that for
a common target SER among the sources, an increase in their
number results in an increase in the expected energy gains over
the equal power allocation for all the nodes policy.
Citació
Ntontin, K. [et al.]. Error rate analysis and optimal power allocation in multiple access relay channels with analog network coding. A: IEEE International Conference on Communications. "2014 IEEE International Conference on Communications (ICC) took place 10-14 June 2014 in Sydney, Australia". Sydney: Institute of Electrical and Electronics Engineers (IEEE), 2014, p. 3559-3563.
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