ABSTRACT
Backscatter requires zero transmission power, making it a compelling technology for in-body communication and localization. It can significantly reduce the battery requirements (and hence the size) of micro-implants and smart capsules, and enable them to be located on-the-move inside the body. The problem however is that the electrical properties of human tissues are very different from air and vacuum. This creates new challenges for both communication and localization. For example, signals no longer travel along straight lines, which destroys the geometric principles underlying many localization algorithms. Furthermore, the human skin backscatters the signal creating strong interference to the weak in-body backscatter transmission. These challenges make deep-tissue backscatter intrinsically different from backscatter in air or vacuum. This paper introduces ReMix, a new backscatter design that is particularly customized for deep tissue devices. It overcomes interference from the body surface, and localizes the in-body backscatter devices even though the signal travels along crooked paths. We have implemented our design and evaluated it in animal tissues and human phantoms. Our results demonstrate that ReMix delivers efficient communication at an average SNR of 15.2 dB at 1 MHz bandwidth, and has an average localization accuracy of 1.4cm in animal tissues.
- A. M. A. A. T. Mobashsher. Artificial human phantoms: Human proxy in testing microwave apparatus that have electromagnetic interaction with the human body. ArXiv, 2015.Google ScholarCross Ref
- A. Abid, Jonathan M. O'Brien, T. Bensel, C. Cleveland, L. Booth, B. R. Smith, R. Langer, and G. Traverso. Wireless power transfer to millimeter-sized gastrointestinal electronics validated in a swine model. Nature Scientific Reports, 2017.Google ScholarCross Ref
- American Society for Gastrointestinal Endoscopy. Wireless capsule endoscopy, 2013. https://www.asge.org/docs/default-source/importfiles/assets/0/73730/c4d44578-c3d0-4583-9949-b15f3e8537e0.pdf?sfvrsn=4.Google Scholar
- S. M. Aziz, M. Grcic, and T. Vaithianathan. A Real-Time Tracking System for an Endoscopic Capsule using Multiple Magnetic Sensors. Springer Berlin Heidelberg, 2008.Google ScholarCross Ref
- M. R. Basar, F. Malek, K. M. Juni, M. S. Idris, and M. I. M. Saleh. Ingestible wireless capsule technology: A review of development and future indication. International Journal of Antennas and Propagation, 2012.Google ScholarCross Ref
- D. Bharadia, K. R. Joshi, M. Kotaru, and S. Katti. BackFi: High Through-put WiFi Backscatter. ACM SIGCOMM, 2015. Google ScholarDigital Library
- J. Brooks. Swedish workers implanted with microchips to replace cash cards and id passes. Independent UK, 2017.Google Scholar
- R. Chandra, A. J. Johansson, and F. Tufvesson. Localization of an rf source inside the human body for wireless capsule endoscopy. BodyNets, 2013. Google ScholarDigital Library
- X. Chen, X. Zhang, L. Zhang, X. Li, N. Qi, H. Jiang, and Z. Wang. A wireless capsule endoscope system with low-power controlling and processing asic. IEEE Transactions on Biomedical Circuits and Systems, 2009.Google Scholar
- B. G. Colpitts and G. Boiteau. Harmonic radar transceiver design: miniature tags for insect tracking. IEEE Transactions on Antennas and Propagation, 2004.Google Scholar
- W. contributors. Eb/n0 --- wikipedia, the free encyclopedia, 2017. https://en.wikipedia.org/w/index.php?title=Eb/N0&oldid=809750730.Google Scholar
- W. contributors. Magnetic dipole --- wikipedia, the free encyclopedia, 2017. https://en.wikipedia.org/w/index.php?title=Magnetic_dipole&oldid=811519977.Google Scholar
- J. R. Cook, R. R. Bouchard, and S. Y. Emelianov. Tissue-mimicking phantoms for photoacoustic and ultrasonic imaging. Biomedical Optics Express, 2011.Google ScholarCross Ref
- A. B. de GonzÃąlez and S. Darby. Risk of cancer from diagnostic x-rays: estimates for the uk and 14 other countries. The Lancet, 2004.Google ScholarCross Ref
- I. Dietlicher, M. Casiraghi, C. Ares, A. Bolsi, D. Weber, A. Lomax, and F. Albertini. Experimental measurement with an anthropomorphic phantom of the proton dose distribution in the presence of metal implants. PTCOG, 2014.Google Scholar
- I. Dove. Analysis of radio propagation inside the human body for in-body localization purposes. Master's thesis, University of Twente, 2014.Google Scholar
- Ettus Research. USRP X310. https://www.ettus.com/product/details/X310-KIT.Google Scholar
- FCC. FCC Publication 703867, 2017. https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?id=27023&switch=P.Google Scholar
- K. R. Foster and J. Jaeger. Rfid inside. IEEE Spectrum, 2007. Google ScholarDigital Library
- H. Gomes and N. B. Carvalho. Rfid for location proposes based on the intermodulation distortion. Sensors & Transducers, 2009.Google Scholar
- H. C. Gomes and N. B. Carvalho. The use of intermodulation distortion for the design of passive rfid. In 2007 European Radar Conference, 2007.Google ScholarCross Ref
- J. Hou, Y. Zhu, L. Zhang, Y. Fu, F. Zhao, L. Yang, and G. Rong. Design and implementation of a high resolution localization system for in-vivo capsule endoscopy. In 2009 Eighth IEEE International Conference on Dependable, Autonomic and Secure Computing, 2009. Google ScholarDigital Library
- C. Hu, M. Q. Meng, and M. Mandal. Efficient magnetic localization and orientation technique for capsule endoscopy. In 2005 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2005.Google Scholar
- P. Hu, P. Zhang, M. Rostami, and D. Ganesan. Braidio: An Integrated Active-Passive Radio for Mobile Devices with Asymmetric Energy Budgets. ACM SIGCOMM, 2016. Google ScholarDigital Library
- H. J. Huisman, J. J. Fütterer, E. N. J. T. van Lin, A. Welmers, T. W. J. Scheenen, J. A. van Dalen, A. G. Visser, J. A. Witjes, and J. O. Barentsz. Prostate cancer: Precision of integrating functional mr imaging with radiation therapy treatment by using fiducial gold markers. Radiology, 2005.Google Scholar
- Institute of Applied Physics. Dielectric Properties of Body Tissues. http://niremf.ifac.cnr.it/tissprop/htmlclie/htmlclie.php.Google Scholar
- T. Instruments. ISM-Band and Short Range Device Regulatory Compliance Overview, 2005. http://www.ti.com/lit/an/swra048/swra048.pdf.Google Scholar
- K. Ito, K. Furuya, Y. Okano, and L. Hamada. Development and characteristics of a biological tissue-equivalent phantom for microwaves. Electronics and Communications in Japan (Part I: Communications), 2001.Google ScholarCross Ref
- E. Kanal, A. J. Barkovich, C. Bell, J. P. Borgstede, W. G. B. Jr, J. W. Froelich, J. R. Gimbel, J. W. Gosbee, E. Kuhni-Kaminski, P. A. Larson, J. W. L. Jr, J. Nyenhuis, D. J. Schaefer, E. A. Sebek, J. Weinreb, B. L. Wilkoff, T. O. Woods, L. Lucey, and D. Hernandez. Acr guidance document on mr safe practices: 2013. Journal Of Magnetic Resonance Imaging, 2013.Google Scholar
- B. Kellogg, V. Talla, S. Gollakota, and J. R. Smith. Passive wi-fi: Bringing low power to wi-fi transmissions. USENIX NSDI, 2016. Google ScholarDigital Library
- J. Kim and Y. Rahmat-Samii. Implanted antennas inside a human body: simulations, designs, and characterizations. IEEE Transactions on Microwave Theory and Techniques, 2004.Google ScholarCross Ref
- R. W. P. King, G. S. Smith, M. Owens, and T. T. Wu. Antennas in matter: Fundamentals, theory, and applications. NASA STI/Recon Technical Report A, 81, 1981.Google Scholar
- M. Kotaru, K. Joshi, D. Bharadia, and S. Katti. Spotfi: Decimeter level localization using wifi. ACM SIGCOMM, 2015. Google ScholarDigital Library
- H. D. Kubo and B. C. Hill. Respiration gated radiotherapy treatment: a technical study. Physics in Medicine and Biology, 1996.Google ScholarCross Ref
- D. Kurup, Gunter Vermeeren, Emmeric Tanghe, W. Joseph, and L. Martens. In-to-out body antenna-independent path loss model for multilayered tissues and heterogeneous medium. IEEE Sensors, 2014.Google ScholarCross Ref
- M. Lazebnik, E. L. Madsen, G. R. Frank, and S. C. Hagness. Tissue-mimicking phantom materials for narrowband and ultrawideband microwave applications. Physics in Medicine and Biology, 2005.Google ScholarCross Ref
- V. Liu, A. Parks, V. Talla, S. Gollakota, D. Wetherall, and J. R. Smith. Ambient Backscatter: Wireless Communication out of Thin Air. ACM SIGCOMM, 2013. Google ScholarDigital Library
- R. Lodato, V. Lopresto, R. Pinto, and G. Marrocco. Numerical and experimental characterization of through-the-body uhf-rfid links for passive tags implanted into human limbs. IEEE Transactions on Antennas and Propagation, 2014.Google Scholar
- A. Ma and A. S. Y. Poon. Midfield wireless power transfer for bioelectronics. IEEE Circuits and Systems Magazine, 2015.Google ScholarCross Ref
- D. Manteuffel and M. Grimm. Localization of a functional capsule for wireless neuro-endoscopy. In 2012 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS), 2012.Google ScholarCross Ref
- A. Masters and K. Michael. Lend me your arms: The use and implications of humancentric rfid. Electronic Commerce Research and Applications, 2007. Google ScholarDigital Library
- H. J. Meyer, N. Chansue, and F. Monticelli. Implantation of radio frequency identification device (rfid) microchip in disaster victim identification (dvi). Forensic Science International, 2006.Google ScholarCross Ref
- K. Michael. Rfid/nfc implants for bitcoin transactions. IEEE Consumer Electronics Magazine, 2016.Google Scholar
- B. J. Mohammed, A. M. Abbosh, S. Mustafa, and D. Ireland. Microwave system for head imaging. IEEE Transactions on Instrumentation and Measurement, 2014.Google Scholar
- C. Oancea, K. Shipulin, G. Mytsin, A. Molokanov, D. Niculae, I. Ambrozová, and M. Davídková. Effect of titanium dental implants on proton therapy delivered for head tumors: experimental validation using an anthropomorphic head phantom. Journal of Instrumentation, 2017.Google Scholar
- T. Onishi and S. Uebayashi. Biological Tissue-equivalent Phantoms Usable in Broadband Frequency Range. NTT DoCoMo Technical Journal, 2006.Google Scholar
- S. J. Orfanidis. Electromagnetic waves and antennas. Rutgers University New Brunswick, NJ, 2002.Google Scholar
- G. Ou, N. Shahidi, C. Galorport, O. Takach, T. Lee, and R. Enns. Effect of longer battery life on small bowel capsule endoscopy. World Journal of Gastroenterology, 2015.Google Scholar
- D. M. Pham and S. M. Aziz. A real-time localization system for an endoscopic capsule using magnetic sensors. IEEE Sensors, 2014.Google ScholarCross Ref
- K. Rasilainen, J. Ilvonen, A. Lehtovuori, J. M. Hannula, and V. Viikari. On design and evaluation of harmonic transponders. IEEE Transactions on Antennas and Propagation, 2015.Google Scholar
- S. Y. Semenov, A. E. Bulyshev, A. Abubakar, V. G. Posukh, Y. E. Sizov, A. E. Souvorov, P. M. van den Berg, and T. C. Williams. Microwave-tomographic imaging of the high dielectric-contrast objects using different image-reconstruction approaches. IEEE Transactions on Microwave Theory and Techniques, 2005.Google Scholar
- Skyworks. SMS7630 Series. http://www.skyworksinc.com/Product/511/SMS7630_Series?IsProduct=true.Google Scholar
- P. R. Stauffer, F. Rossetto, M. Prakash, D. G. Neuman, and T. Lee. Phantom and animal tissues for modelling the electrical properties of human liver. International Journal of Hyperthermia, 2003.Google Scholar
- A. Surowiec, S. S. Stuchly, L. Eidus, and A. Swarup. In vitro dielectric properties of human tissues at radiofrequencies. Physics in Medicine and Biology, 1987.Google ScholarCross Ref
- Q. Tang, S. K. S. Gupta, and L. Schwiebert. Ber performance analysis of an on-off keying based minimum energy coding for energy constrained wireless sensor applications. In IEEE International Conference on Communications, 2005.Google Scholar
- Taoglas. PC 30 Antenna. http://www.taoglas.com/product/pc30-2g3g-cellular-fr4-pcb-antenna-mmcxmra-2/.Google Scholar
- D. Tse and P. Vishwanath. Fundamentals of Wireless Communications. Cambridge University Press, 2005. Google ScholarDigital Library
- I. Umay, B. Fidan, and B. Barshan. Localization and tracking of implantable biomedical sensors. IEEE Sensors, 2017.Google ScholarCross Ref
- I. Umay, B. Fidan, and M. R. YÃijce. Endoscopic capsule localization with unknown signal propagation coefficients. In 2015 International Conference on Advanced Robotics (ICAR), 2015.Google ScholarCross Ref
- D. Vasisht, S. Kumar, and D. Katabi. Decimeter-Level Localization with a Single WiFi Access Point. USENIX NSDI, 2016. Google ScholarDigital Library
- J. Wang, D. Vasisht, and D. Katabi. Rf-idraw: Virtual touch screen in the air using rf signals. ACM SIGCOMM, 2014. Google ScholarDigital Library
- Y. Wang, R. Fu, Y. Ye, U. Khan, and K. Pahlavan. Performance bounds for rf positioning of endoscopy camera capsules. In 2011 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems, 2011.Google ScholarCross Ref
- J. Xiong and K. Jamieson. ArrayTrack: A Fine-Grained Indoor Location System. USENIX NSDI, 2013. Google ScholarDigital Library
- Y. Ye and K. Pahlavan. Accuracy bounds for and rss and toa based rf localization in capsule endoscopy. 2011.Google Scholar
- M. R. Yuce and T. Dissanayake. Easy-to-swallow wireless telemetry. IEEE Microwave Magazine, 2012.Google Scholar
- L. Zhang, Y. Zhu, T. Mo, J. Hou, and H. Hu. Design of 3d positioning algorithm based on rfid receiver array for in vivo micro-robot. In IEEE International Conference on Dependable, Autonomic and Secure Computing, 2009. Google ScholarDigital Library
- L. Zhang, Y. Zhu, T. Mo, J. Hou, and G. Rong. Design and implementation of 3d positioning algorithms based on rf signal radiation patterns for in vivo micro-robot. International Conference on Body Sensor Networks, 2010. Google ScholarDigital Library
- P. Zhang, D. Bharadia, K. Joshi, and S. Katti. HitchHike: Practical Backscatter Using Commodity WiFi. ACM SenSys, 2016. Google ScholarDigital Library
- In-body backscatter communication and localization
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