@inproceedings{986b8392b69c4cb282a768e70a555a97,
title = "Dual-CTS: Novel high-efficiency spatial reuse method in heterogeneous wireless IoT systems",
abstract = "A heterogeneous wireless IoT system is assumed to be used where several wireless subsystems with different standards using the same frequency coexist in a narrow space such as a factory. In the heterogeneous wireless IoT system, interference from the micro-cell system (μSystem) to the pico-cell system (pSystem) decreases the pSystem throughput. In this paper, we propose a Dual Clear to Send (Dual-CTS) method as a novel access control method for avoiding interference by exploiting spatial resources. In the proposed Dual-CTS method, μSystem gateway (μGW) does not broadcast only conventional CTS but also special CTS for pNode (pCTS) after receiving Require to Send (RTS). The pCTS enables pNode to transmit data using the same time and the same frequency resources as μNode uses. Calculation and simulation results show that the pSystem throughput in the proposed method is higher than one of the conventional methods by 1.3 times or more by exploiting the spatial resource.",
keywords = "CSMA/CA, Interference Avoidance, RTS/CTS, Spectrum Sharing",
author = "Kento Ono and Kohei Akimoto and Suguru Kameda and Noriharu Suematsu",
note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 31st IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2020 ; Conference date: 31-08-2020 Through 03-09-2020",
year = "2020",
month = aug,
doi = "10.1109/PIMRC48278.2020.9217244",
language = "English",
series = "IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2020 IEEE 31st Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2020",
}