Abstract-In this paper, we investigate the possibility, from an energy efficiency point of view, of employing Analog Network Coding in the Multiple Access Relay Channel (MARC) instead of the conventional Time-Division Multiple Access (TDMA) protocol when time and not bandwidth is the available resource in the network. Towards this end, we derive a closed-form upper bound of the Bit Error Rate (BER) per source of Analog Network Coding when the optimal maximum-likelihood (ML) detector is employed. Based on this framework, we mathematically prove that as either the number of sources or the number of relays or the modulation order increases, the possibility of Analog Network Coding being more energy efficient than TDMA increases as well. These findings are substantiated by means of Monte Carlo simulations.
In REF , the authors have shown that when the number of sources/relays or the modulation order increases, ANC may be more energy efficient than the conventional time-orthogonal non-cooperative transmission scheme (referred to as No Network Coding scenario (NoNC)).
Is Analog Network Coding more energy efficient than TDMA?
2014 IEEE 19th International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD)
2014 IEEE 19th International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD)
Computer Science