Network Coded Cooperative Communication in a Real-Time Wireless Hospital Sensor Network
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The paper presents a network coded cooperative communication (NC-CC) enabled wireless hospital sensor network architecture for monitoring health as well as postural activities of a patient. A wearable device, referred as a smartband is interfaced with pulse rate, body temperature sensors and an accelerometer along with wireless protocol services, such as Bluetooth and Radio-Frequency transceiver and Wi-Fi. The energy efficiency of wearable device is improved by embedding a linear acceleration based transmission duty cycling algorithm (NC-DRDC). The real-time demonstration is carried-out in a hospital environment to evaluate the performance characteristics, such as power spectral density, energy consumption, signal to noise ratio, packet delivery ratio and transmission offset. The resource sharing and energy efficiency features of network coding technique are improved by proposing an algorithm referred as network coding based dynamic retransmit/rebroadcast decision control (LA-TDC). From the experimental results, it is observed that the proposed LA-TDC algorithm reduces network traffic and end-to-end delay by an average of 27.8% and 21.6%, respectively than traditional network coded wireless transmission. The wireless architecture is deployed in a hospital environment and results are then successfully validated.
KeywordsSmartband Wireless hospital sensor network Network coding based dynamic retransmit/rebroadcast decision control (NC-DRDC) Linear acceleration based transmission duty cycling decision control (LA-TDC) False alarm prevention
The authors gratefully acknowledge the financial support from Science for Equity Empowerment and Development Division under Department of Science and Technology, New Delhi, India by sanctioning a project - File No.: SSD/TISN/047/2011-TIE (G) to Velammal Engineering College, Chennai.
Compliance with ethical standards
Disclosure of potential conflicts of interest
All authors of this manuscript declare as they do have no conflict of interest with any Laboratory, Funding Source or an Individual.
Research involving human participants and/or animals and informed consent
The parameters measured are pulse rate, body temperature and acceleration (body movement) by using non-invasive sensors and collected information not used for any prescription and diagnostic purposes. Further, Informed consent was obtained from all individual participants included in the study.
- 1.He, T., Krishnamurthy, S., Stankovic, J.A., Abdelzaher, T., Luo, L., Stoleru, R., Yan, T., Gu, L., Hui, J. and Krogh, B (2004) Boston. Energy-efficient surveillance system using wireless sensor networks. In Proceedings of the 2nd international conference on Mobile systems, applications, and services (pp. 270–283). ACMGoogle Scholar
- 2.Xu, N., Rangwala, S., Chintalapudi, K.K., Ganesan, D., Broad, A., Govindan, R. and Estrin, D (2004) Maryland. A wireless sensor network for structural monitoring. In Proceedings of the 2nd international conference on Embedded networked sensor systems (pp. 13–24). ACM.Google Scholar
- 9.Ibrahim, A.S., Sadek, A.K., Su, W. and Liu, K.R (2006) California. SPC12–5: relay selection in multi-node cooperative communications: when to cooperate and whom to cooperate with? Global Telecommunications Conference, 1–5.Google Scholar
- 12.Sliman, J.B., Song, Y.Q., Koubâa, A. and Frikha, M (2009) Portugal. A three-tiered architecture for large-scale wireless hospital sensor networks. In Workshop Mobi Health Inf in conjunction with BIOSTEC: 64.Google Scholar
- 13.Chipara, Octav, Chenyang Lu, Thomas C. Bailey, and Gruia-Catalin Roman (2010) Switzerland. Reliable clinical monitoring using wireless sensor networks: experiences in a step-down hospital unit. In Proceedings of the 8th ACM conference on embedded networked sensor systems, ACM: 155–168.Google Scholar
- 15.Zhang, Z., Lv, T., Su, X. and Gao, H (2011) Japan. Dual XOR in the air: A network coding based retransmission scheme for wireless broadcasting. IEEE International Conference on Communications (ICC):1–6.Google Scholar
- 16.Long, S., Liu, J., Jiang, G., and Gao, Y., Low power consumption data retransmission strategy in WSNs based on network coding. Transducer and Microsystem Technologies. 32(8):35–38, 2013.Google Scholar
- 18.Zhu, C., Zhu, Y. and Li, L (2015) Network coding-based real-time retransmission scheme in wireless sensor networks. International Journal of Distributed Sensor Networks, p. 116.Google Scholar
- 20.Lin, F., Wang, A., Cavuoto, L. and Xu, W (2016) Towards Unobtrusive Patient Handling Activity Recognition for Reducing Injury Risk among Caregivers. IEEE J Biomed Health Inform. PP (99), pp. 1–1Google Scholar
- 22.Ammari, H.M., The art of wireless sensor networks. Springer, 2013.Google Scholar
- 23.Webster, J.G., and Eren, H. (Eds.), Measurement, instrumentation, and sensors handbook: spatial, mechanical, thermal, and radiation measurement. Vol. 1. CRC press, 2014.Google Scholar
- 31.Zagar, D., Horvat, G. and Rimac-Drlje, S (2013) Fade depth prediction using human presence for real life WSN deployment. Radioengineering.Google Scholar
- 32.MSP430™ SoC With RF Core,“SLAS554H (2013) Datasheet: ECCN 5E002 TSPARev [Online]. Available:http://www.ti.com.cn/cn/lit/ds/symlink/cc430f6137.pdf
- 33.CC1101 “SWRS061I” Datasheet: Low-Power Sub-1 GHz RF Transceiver, [Online] Available:http://www.ti.com/lit/ds/swrs061i/swrs061i.pdf
- 34.CC3200 SimpleLink™ Wi-Fi and Internet-of-Things Solution, a Single-Chip Wireless MCU” Datasheet: Swas032f (July 2013) Revised (2015) [Online] Available:http://www.ti.com/lit/ds/symlink/cc3200.pdf
- 35.MAX30100 Datasheet: “Pulse Oximeter and Heart-Rate Sensor IC For Wearable Health” [Online] Available: https://datasheets.maximintegrated.com/en/ds/MAX30100.pdf
- 36.MA100 Datasheet: “Thermo metrics Biomedical Chip Thermistors” [Online] Available: http://www.ge-mcs.com/download/temperature/920_321a.pdf
- 37.ADXL335 Datasheet: “Small, Low Power, 3-Axis ±3g Accelerometer” [Online] Available: https://www.sparkfun.com/datasheets/Components/SMD/adxl335.pdf
- 38.CC2541 “SWRS128 ” Datasheet: SimpleLink™ Bluetooth® Low Energy Wireless MCU, [Online] Available:http://www.ti.com/lit/ds/symlink/cc2541-q1.pdf