Browsing by Author "Istepanian, R H"
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- ItemThe comparative performance of mobile telemedical systems based on the IS-54 and GSM cellular telephone standards.(2000-01-20) Istepanian, R H; Woodward, B; Balos, P A; Chen, S; Luk, BThe performance of mobile telemedical communications links based on the IS 54 and GSM cellular telephone standards the most widely used commercial systems in North America and Europe respectively was studied by computer simulations A photoplethysmography signal was used to investigate the transmission of medical data over simulated mobile phone channels Various conditions were simulated in the communications path between a mobile transmitter and receiver from perfect to distorted conditions The results showed successful transmission with bit error rates of better than 10 7 at the receiver for the IS 54 standard The performance of the IS 54 standard was superior to that of GSM in terms of minimum path delay variations especially in built up urban areas
- ItemPerformance analysis of medical video streaming over mobile WiMAX.(2010-11-24) Alinejad, Ali; Philip, N; Istepanian, R HWireless medical ultrasound streaming is considered one of the emerging application within the broadband mobile healthcare domain These applications are considered as bandwidth demanding services that required high data rates with acceptable diagnostic quality of the transmitted medical images In this paper we present the performance analysis of a medical ultrasound video streaming acquired via special robotic ultrasonography system over emulated WiMAX wireless network The experimental set up of this application is described together with the performance of the relevant medical quality of service m QoS metrics
- ItemSubjective and objective quality assessment in wireless teleultrasonography imaging.(2009-02-16) Istepanian, R H; Philip, N; Martini, M G; Amso, N; Shorvon, PMobile Robotic teleultrasonography is an emerging technology that can be applied in different clinical settings for remote ultrasound scanning without the need of the expert at the point of care Guaranteed medical image quality for diagnostic purposes and their delivery in bandwidth limited wireless environments is a challenging issue In this paper we present some of the subjective and objective image analysis acquired from a robotic teleultrasonography system operated remotely by the expert to provide an assessment of these medical imaging measures for such advanced wireless telemedical system