Generalized Network-Coded Cooperation in OFDMA Communications
Cooperative communication is a well-established technique to obtain diversity and consequently combat the fading inherent to the wireless channel. In a recent work, network-coded cooperation (NCC) along with graph theory-aided subcarrier allocation was applied to an OFDMA network where multiple sour...
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| Format: | Article |
| Language: | English |
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IEEE
2018-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/8247182/ |
| _version_ | 1818329631380471808 |
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| author | Zaqueu Cabral Pereira Thiago Henrique Ton Joao Luiz Rebelatto Richard Demo Souza Bartolomeu F. Uchoa-Filho |
| author_facet | Zaqueu Cabral Pereira Thiago Henrique Ton Joao Luiz Rebelatto Richard Demo Souza Bartolomeu F. Uchoa-Filho |
| author_sort | Zaqueu Cabral Pereira |
| collection | DOAJ |
| description | Cooperative communication is a well-established technique to obtain diversity and consequently combat the fading inherent to the wireless channel. In a recent work, network-coded cooperation (NCC) along with graph theory-aided subcarrier allocation was applied to an OFDMA network where multiple source nodes have independent information to transmit to a common destination. In the so-called NCC-OFDMA scheme, diversity is then obtained by means of space and frequency, showing that the aforementioned scheme is capable of achieving improved diversity-multiplexing tradeoff (DMT) over other schemes presented in literature. In this paper, we present a generalization of the NCC-OFDMA scheme, where time dimension is also exploited to improve the DMT. Moreover, in our proposed scheme, referred to as generalized dynamic network coding-OFDMA, we show that the network performance (either in terms of DMT or energy efficiency) can be increased even further by relaxing a constraint imposed to the NCC-OFDMA scheme that only a set of nodes is able to transmit redundant information. |
| first_indexed | 2024-12-13T12:51:08Z |
| format | Article |
| id | doaj.art-126b93b1b53d45c7b7ac769ed6bc2d0f |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-13T12:51:08Z |
| publishDate | 2018-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-126b93b1b53d45c7b7ac769ed6bc2d0f2022-12-21T23:45:19ZengIEEEIEEE Access2169-35362018-01-0166550655910.1109/ACCESS.2018.27898618247182Generalized Network-Coded Cooperation in OFDMA CommunicationsZaqueu Cabral Pereira0Thiago Henrique Ton1Joao Luiz Rebelatto2https://orcid.org/0000-0002-1682-2215Richard Demo Souza3Bartolomeu F. Uchoa-Filho4Department of Electronics, Federal University of Technology-Paraná, Curitiba, BrazilDepartment of Electronics, Federal University of Technology-Paraná, Curitiba, BrazilDepartment of Electronics, Federal University of Technology-Paraná, Curitiba, BrazilDepartment of Electrical Engineering, Federal University of Santa Catarina, Florianopolis, BrazilDepartment of Electrical Engineering, Federal University of Santa Catarina, Florianopolis, BrazilCooperative communication is a well-established technique to obtain diversity and consequently combat the fading inherent to the wireless channel. In a recent work, network-coded cooperation (NCC) along with graph theory-aided subcarrier allocation was applied to an OFDMA network where multiple source nodes have independent information to transmit to a common destination. In the so-called NCC-OFDMA scheme, diversity is then obtained by means of space and frequency, showing that the aforementioned scheme is capable of achieving improved diversity-multiplexing tradeoff (DMT) over other schemes presented in literature. In this paper, we present a generalization of the NCC-OFDMA scheme, where time dimension is also exploited to improve the DMT. Moreover, in our proposed scheme, referred to as generalized dynamic network coding-OFDMA, we show that the network performance (either in terms of DMT or energy efficiency) can be increased even further by relaxing a constraint imposed to the NCC-OFDMA scheme that only a set of nodes is able to transmit redundant information.https://ieeexplore.ieee.org/document/8247182/Cooperative communicationenergy efficiencynetwork codingsubcarrier allocation |
| spellingShingle | Zaqueu Cabral Pereira Thiago Henrique Ton Joao Luiz Rebelatto Richard Demo Souza Bartolomeu F. Uchoa-Filho Generalized Network-Coded Cooperation in OFDMA Communications IEEE Access Cooperative communication energy efficiency network coding subcarrier allocation |
| title | Generalized Network-Coded Cooperation in OFDMA Communications |
| title_full | Generalized Network-Coded Cooperation in OFDMA Communications |
| title_fullStr | Generalized Network-Coded Cooperation in OFDMA Communications |
| title_full_unstemmed | Generalized Network-Coded Cooperation in OFDMA Communications |
| title_short | Generalized Network-Coded Cooperation in OFDMA Communications |
| title_sort | generalized network coded cooperation in ofdma communications |
| topic | Cooperative communication energy efficiency network coding subcarrier allocation |
| url | https://ieeexplore.ieee.org/document/8247182/ |
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