Secure and Stable Wireless Communication for an Ingestible Device. 2023

Yeseul Jeon, and Saurav Maji, and So-Yoon Yang, and Muhammed Suleman S Thaniana, and Adam Gierlach, and Ian Ballinger, and George Selsing, and Injoo Moon, and Josh Jenkins, and Andrew Pettinari, and Niora Fabian, and Alison M Hayward, and Giovanni Traverso, and Anantha P Chandrakasan

Wireless communication enables an ingestible device to send sensor information and support external on-demand operation while in the gastrointestinal (GI) tract. However, it is challenging to maintain stable wireless communication with an ingestible device that travels inside the dynamic GI environment as this environment easily detunes the antenna and decreases the antenna gain. In this paper, we propose an air-gap based antenna solution to stabilize the antenna gain inside this dynamic environment. By surrounding a chip antenna with 1 ~ 2 mms of air, the antenna is isolated from the environment, recovering its antenna gain and the received signal strength by 12 dB or more according to our in vitro and in vivo evaluation in swine. The air gap makes margin for the high path loss, enabling stable wireless communication at 2.4 GHz that allows users to easily access their ingestible devices by using mobile devices with Bluetooth Low Energy (BLE). On the other hand, the data sent or received over the wireless medium is vulnerable to being eavesdropped on by nearby devices other than authorized users. Therefore, we also propose a lightweight security protocol. The proposed protocol is implemented in low energy without compromising the security level thanks to the base protocol of symmetric challenge-response and Speck, the cipher that is optimized for software implementation.

UI MeSH Term Description Entries
D003142 Communication The exchange or transmission of ideas, attitudes, or beliefs between individuals or groups. Miscommunication,Misinformation,Social Communication,Communication Programs,Communications Personnel,Personal Communication,Communication Program,Communication, Personal,Communication, Social,Communications, Social,Miscommunications,Misinformations,Personnel, Communications,Program, Communication,Programs, Communication,Social Communications
D003195 Computer Communication Networks A system containing any combination of computers, computer terminals, printers, audio or visual display devices, or telephones interconnected by telecommunications equipment or cables: used to transmit or receive information. (Random House Unabridged Dictionary, 2d ed) Cognitive Radio,Computer Network Management,Databases, Distributed,Distributed Systems,Extranets,Intranets,Network Communication Protocols,Telecommunication Networks,Cognitive Radios,Communication Network, Computer,Communication Networks, Computer,Communication Protocol, Network,Communication Protocols, Network,Computer Communication Network,Database, Distributed,Distributed Database,Distributed Databases,Distributed System,Extranet,Intranet,Management, Computer Network,Network Communication Protocol,Network Management, Computer,Network, Computer Communication,Network, Telecommunication,Protocol, Network Communication,Radio, Cognitive,System, Distributed,Telecommunication Network
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012984 Software Sequential operating programs and data which instruct the functioning of a digital computer. Computer Programs,Computer Software,Open Source Software,Software Engineering,Software Tools,Computer Applications Software,Computer Programs and Programming,Computer Software Applications,Application, Computer Software,Applications Software, Computer,Applications Softwares, Computer,Applications, Computer Software,Computer Applications Softwares,Computer Program,Computer Software Application,Engineering, Software,Open Source Softwares,Program, Computer,Programs, Computer,Software Application, Computer,Software Applications, Computer,Software Tool,Software, Computer,Software, Computer Applications,Software, Open Source,Softwares, Computer Applications,Softwares, Open Source,Source Software, Open,Source Softwares, Open,Tool, Software,Tools, Software
D013552 Swine Any of various animals that constitute the family Suidae and comprise stout-bodied, short-legged omnivorous mammals with thick skin, usually covered with coarse bristles, a rather long mobile snout, and small tail. Included are the genera Babyrousa, Phacochoerus (wart hogs), and Sus, the latter containing the domestic pig (see SUS SCROFA). Phacochoerus,Pigs,Suidae,Warthogs,Wart Hogs,Hog, Wart,Hogs, Wart,Wart Hog
D059015 Wireless Technology Techniques using energy such as radio frequency, infrared light, laser light, visible light, or acoustic energy to transfer information without the use of wires, over both short and long distances. Technologies, Wireless,Technology, Wireless,Wireless Technologies
D034941 Upper Extremity The region of the upper limb in animals, extending from the deltoid region to the HAND, and including the ARM; AXILLA; and SHOULDER. Extremity, Upper,Membrum superius,Upper Limb,Extremities, Upper,Limb, Upper,Limbs, Upper,Upper Extremities,Upper Limbs

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