A Low Complex Spectrum Sensing Technique for Medical Telemetry System

Sala, Surekha ; Rahman, Md Zia Ur ; Gupta, Navarun

Abstract

Wearable wireless sensors play a vital role in healthcare applications to transfer information of patients. Generally, wearable devices are used for monitoring, diagnosing, and treating various medical conditions. In this paper authors propose a novel energy detection scheme for spectrum allotment to a medical telemetry network. So, we proposed cognitive radio technology to dynamically utilize Wireless Medical Telemetry Services (WMTS). By using Medical body area networks, we can improve remote patient monitoring as well as facilitating immediate response from the service provider. Further, we also outline the challenges of implementing spectrum sensing for body sensor networks. In this paper, spectrum sensing using energy detection can be used for implementing medical telemetry in healthcare applications. The proposed Normalized Median Least Mean Square (NMLMS) algorithm with sign regressor operation also solves the problem of complexity of circuit in basic spectrum sensing using energy detection phenomenon. The experimental results show that performance of NMLMS gives better performance in terms of convergence of the health care system. The probability of detection of a spectrum are demonstrated at various false alarm rates as 0.025, 0.05, and 0.1 and signal to noise ratio from -10 dB to 0 dB.


Keyword(s)

Cognitive radios; Energy detection; Health care monitor; Threshold Point; Spectrum sensing


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