Physical-Layer Network Coding Based Throughput-Optimal Transmission for Bidirectional Traffic SCIE SCOPUS

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Title
Physical-Layer Network Coding Based Throughput-Optimal Transmission for Bidirectional Traffic
Author(s)
Noh, Wonjong; Lim, Sung Hoon; Kim, Tae-Suk
Publication Year
2018-04
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.
ISSN
0018-9545
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/988
DOI
10.1109/TVT.2017.2777141
Bibliographic Citation
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, v.67, no.4, pp.3130 - 3144, 2018
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Subject
NONORTHOGONAL MULTIPLE-ACCESS; MULTIHOP WIRELESS NETWORKS; AD-HOC NETWORKS; CONGESTION CONTROL; MAC; PRIORITIES
Keywords
Bidirectional path establishment; distributed scheduling; physical-layer network coding; throughput-optimal transmission control
Type
Article
Language
English
Document Type
Article
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
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