조성현
2019-12-31T02:19:49Z
2019-12-31T02:19:49Z
2018-08
SENSORS, v. 18, No. 8, Article no. 2661
1424-8220
https://www.mdpi.com/1424-8220/18/8/2661
https://repository.hanyang.ac.kr/handle/20.500.11754/121449
Wireless multimedia sensor networks (WMSNs) have been improved with the increase of multimedia data. In WMSNs, a centralization problem can occur because of large-size multimedia data. It is necessary to consider device-to-device (D2D) communication. We focus on D2D WMSN based on cellular networks. Sensors in the D2D WMSN can non-orthogonally use a cellular link, which is a wireless communication channel between a sensor and an aggregator, and a D2D link, which is the channel between sensors. As a result, it has more complex interference environments than an ordinary system. Therefore, it is a key factor to manage the varying inter-cell interference effectively for throughput improvement. We propose an interference mitigation scheme that can be applied to D2D WMSN. In the proposed scheme, a cell is separated into six zones and orthogonal frequency is allocated to each zone for cellular links. The frequencies allocated to cellular links are reused by D2D links of neighboring zones. The simulation results show that the throughput of the proposed scheme increases two times compared to a static frequency allocation scheme.
This work was supported by the Korea Institute of Energy Technology Evaluation and Planning and the Ministry of Trade, Industry, and Energy South Korea under Grant 20161520302230 and Basic Science Research Program through the National Research Foundation of Korea(NRF) funded by the Ministry of Education(No. NRF-2015R1D1A1A01059473).
en_US
MDPI AG
wireless mobile sensor network
fractional frequency reuse
D2D communication
interference management
Fractional Frequency Reuse Scheme for Device to Device Communication Underlaying Cellular on Wireless Multimedia Sensor Networks
Article
8
18
10.3390/s18082661
1-21
SENSORS
Kim, Jeehyeong
Kim, Teasung
Noh, Jaewon
Cho, Sunghyun
2018007781
E
COLLEGE OF COMPUTING[E]
DIVISION OF COMPUTER SCIENCE
chopro