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Publications (3)
We present WFID, a passive device-free indoor human iden- tification system with one pair of WiFi signal transmitter and receiver. WFID design is motivated by the observation that PHY layer Channel State Information (CSI) is capable of capturing the frequency diversity of wideband channel, such that the human body curve may be uniquely identified b...
Time synchronization is the foundation for collaboration among sensor nodes. Acoustic communication and restricted mobility of sensor nodes are two unique characteristics of underwater sensor networks (UWSNs), negating the effect of terrestrial synchronization schemes. Existing UWSN time synchronization protocols focus on point to point synchroniza...
Time synchronization is the basis for collaboration across multiple sensor nodes. Underwater sensor networks (UWSNs) have different characteristics from the terrestrial wireless sensor networks, where communication is primarily via acoustic signals, producing new challenges to time synchronization. This paper first illustrates the definitions of th...
