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On the performance of two‐user full‐duplex network‐coded cooperation
Author(s) -
Mafra Samuel B.,
Fernández Evelio M. G.,
MontejoSánchez Samuel,
Souza Richard D.,
Rayel Ohara K.,
Rebelatto João L.
Publication year - 2019
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/dac.3931
Subject(s) - computer science , linear network coding , outage probability , computer network , multiplexing , coding (social sciences) , duplex (building) , interference (communication) , fading , single antenna interference cancellation , node (physics) , dirty paper coding , cooperative diversity , telecommunications , channel (broadcasting) , mimo , mathematics , precoding , statistics , physics , dna , quantum mechanics , network packet , biology , genetics
Summary In this paper, we propose two schemes based on a full‐duplex network‐coded cooperative communication (FD‐NCC) strategy, namely, full‐duplex dynamic network coding (FD‐DNC) and full‐duplex generalized dynamic network coding (FD‐GDNC). The use of full‐duplex communication aims at improving the spectrum efficiency of a two‐user network where the users cooperatively transmit their independent information to a common destination. In the proposed FD‐NCC schemes, the self‐interference imposed by full‐duplexing is modeled as a fading channel, whose harmful effect can be partially mitigated by interference cancellation techniques. Nevertheless, our results show that, even in the presence of self‐interference, the proposed FD‐NCC schemes can outperform (in terms of outage probability) the equivalent half‐duplex network‐coded cooperative (HD‐NCC) schemes, as well as traditional cooperation techniques. Moreover, the ϵ ‐outage capacity, that is, the maximum information rate achieved by the users given a target outage probability, is evaluated. Finally, we examine the use of multiple antennas at the destination node, which increases the advantage of the FD‐NCC (in terms of the diversity‐multiplexing trade‐off and ϵ ‐outage capacity).