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A hybrid MAC protocol for optimal channel allocation in large-scale wireless powered communication networks

Title
A hybrid MAC protocol for optimal channel allocation in large-scale wireless powered communication networks
Author
조인휘
Keywords
Wireless powered communication networks (WPCN); Hybrid multiple access; Channel allocation; Sum-throughput optimization
Issue Date
2018-01
Publisher
SPRINGEROPEN
Citation
EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND NETWORKING, Article no. 9
Abstract
This paper proposes a large-scale wireless powered communication network (WPCN), which consists of a hybrid access point (H-AP) and numerous nodes. The H-AP broadcasts energy to all nodes, and the nodes harvest the energy and then use the harvested energy to transmit information. For the large-scale WPCN, we also propose a novel hybrid multiple access protocol, termed hybrid multiple access-based dual harvest-then-transmit. The proposed protocol utilizes both time division multiple access (TDMA) and carrier-sense multiple access (CSMA), in order to deal with various traffic patterns and transmission reliability of different applications in large-scale networks. We consider a dual wireless energy transfer (WET) at the H-AP. The main WET is performed in TDMA and the other WET is performed at space holes in CSMA, to increase the channel utilization and harvested energy. For the considerations, we study the sum-throughput maximization in the large-scale WPCN based on hybrid multiple access-based dual harvest-then-transmit. Simulation results show that the proposed protocol outperforms the conventional protocol in large-scale WPCN.
URI
https://jwcn-eurasipjournals.springeropen.com/articles/10.1186/s13638-017-1012-2http://repository.hanyang.ac.kr/handle/20.500.11754/117118
ISSN
1687-1472; 1687-1499
DOI
10.1186/s13638-017-1012-2
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > COMPUTER SCIENCE(컴퓨터소프트웨어학부) > Articles
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