Physical-Layer Network Coding Based Throughput-Optimal Transmission for Bidirectional Traffic
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Title
- Physical-Layer Network Coding Based Throughput-Optimal Transmission for Bidirectional Traffic
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Author(s)
- Noh, Wonjong; Lim, Sung Hoon; Kim, Tae-Suk
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Alternative Author(s)
- 임성훈
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Publication Year
- 2018-04
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Abstract
- In this study, we develop a physical-layer network coding based throughput-optimal transmission scheduling policy, which we call network coding aware maximum differential backlog (NCMDB), and demonstrate its throughput optimality. As the proposed policy requires an NP-hard network-wide centralized algorithm to determine the optimal transmission schedule, we propose a distributed NCMDB based on link prioritization (D-NCMDB) as a lower bound approach. We further propose a bidirectionality-aware route establishment scheme for the best application of the NCMDB and D-NCMDB policies. Simulations confirm that compared to the signal-to-interference-based interference avoidance transmission approach and random maximal physical-layer network coding approach, the proposed D-NCMDB scheme offers 48% and 27% increased throughput, 78% and 63% reduced access delay, and 80% and 20% enlarged stability, respectively. The proposed distributed transmission scheduling scheme can be employed in future communication networks in which both the number of nodes and the amount of interference increase exponentially.
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ISSN
- 0018-9545
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/988
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DOI
- 10.1109/TVT.2017.2777141
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Bibliographic Citation
- IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, v.67, no.4, pp.3130 - 3144, 2018
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Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
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Subject
- NONORTHOGONAL MULTIPLE-ACCESS; MULTIHOP WIRELESS NETWORKS; AD-HOC NETWORKS; CONGESTION CONTROL; MAC; PRIORITIES
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Keywords
- Bidirectional path establishment; distributed scheduling; physical-layer network coding; throughput-optimal transmission control
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Type
- Article
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Language
- English
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Document Type
- Article
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