Joo-Seong Oh

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IEEE 802.15.4 is designed for low-cost and low-power wireless personal area networks. The network formation of the IEEE 802.15.4 does not impose constraints on the topology and it contains two topologies: the star topology, the peer-to-peer, and the tree topology. The mesh topology enables robust multi-hop communication and more flexible network, but it(More)
Direction of arrival (DOA) estimation has been a vital area of research since few decades due to its importance in applications like wireless communication, navigation radar, sonar etc. The resolution being one of the main challenges in the direction of arrival estimation can be enhanced by array antenna system with reliable signal processing. In this paper(More)
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