Sungkyunkwan University

Samsung Electronics Co., Ltd.

Youngik Kim

Minyoung Chung

Bumgon Choi

Uncheol Kim

Minsik Cho

Technology for a wireless multi-hop network is provided. A method by which a source node operates in a wireless multi-hop network includes selecting one of first to M-th frame structures (M is a natural number greater than or equal to 2), based on a data packet generation interval, when the source node is in an active state, synchronizing with neighboring nodes in a first synchronization period of the selected frame structure, and when the source node is in the active state, transmitting a control packet to a next hop in a data period of the selected frame structure, and waiting for a response from the next hop, the control packet indicating that the source node will transmit a data packet in a sleep period subsequent to the data period and including information on the selected frame structure. Here, each of the first to M-th frame structures defines a frame including at least one synchronization period, at least one data period, and at least one sleep period, and having a different duty cycle.

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Ansan-si, South Korea

Youngik Kim