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학술대회 Gradual Time Synchronization for Wireless Mesh Networks Based on OFDMA
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저자
김지형, 임광재, 이문식
발행일
201309
출처
International Conference on Next Generation Mobile Apps, Services and Technologies (NGMAST) 2013, pp.187-191
DOI
https://dx.doi.org/10.1109/NGMAST.2013.41
협약과제
13PI2600, 사용자 중심 5G 이동형 개인셀 원천 기술 개발, 박애순
초록
In this paper, we propose a gradual time synchronization scheme for wireless mesh networks (WMNs) based on orthogonal frequency division multiple access (OFDMA). For distributed time synchronization in WMNs, each node controls its transmission time and fast Fourier transform (FFT) starting time within the possible range according to the requests of neighbor nodes. The possible range is determined by the cyclic prefix (CP) and the guard interval (GI) between transmitted sub frames and received sub frames. Simulation results show that this process leads to gradual synchronization of all nodes in the network. © 2013 IEEE.
KSP 제안 키워드
Cyclic prefix(CP), Distributed time, Fast fourier transform (fft), Frequency division multiple access(FDMA), Orthogonal Frequency Division Multiple Access(OFDMA), Starting time, Synchronization scheme, Time synchronization, Transmission time, Wireless Mesh Network, each node