An Adaptive Framework for Real-Time ECG Transmission in Mobile Environments
Wireless electrocardiogram (ECG) monitoring involves the measurement of ECG signals and their timely transmission over wireless networks to remote healthcare professionals. However, fluctuations in wireless channel conditions pose quality-of-service challenges for real-time ECG monitoring services i...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/678309 |
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| _version_ | 1832557105904615424 |
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| author | Kyungtae Kang |
| author_facet | Kyungtae Kang |
| author_sort | Kyungtae Kang |
| collection | DOAJ |
| description | Wireless electrocardiogram (ECG) monitoring involves the measurement of ECG signals and their timely transmission over wireless networks to remote healthcare professionals. However, fluctuations in wireless channel conditions pose quality-of-service challenges for real-time ECG monitoring services in a mobile environment. We present an adaptive framework for layered coding and transmission of ECG data that can cope with a time-varying wireless channel. The ECG is segmented into layers with differing importance with respect to the quality of the reconstructed signal. According to this observation, we have devised a simple and efficient real-time scheduling algorithm based on the earliest deadline first (EDF) policy, which decides the order of transmitting or retransmitting packets that contain ECG data at any given time for the delivery of scalable ECG data over a lossy channel. The algorithm takes into account the differing priorities of packets in each layer, which prevents the perceived quality of the reconstructed ECG signal from degrading abruptly as channel conditions worsen, while using the available bandwidth efficiently. Extensive simulations demonstrate this improvement in perceived quality. |
| format | Article |
| id | doaj-art-756cacdd12274afaa2598392a98b8357 |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-756cacdd12274afaa2598392a98b83572025-02-03T05:43:38ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/678309678309An Adaptive Framework for Real-Time ECG Transmission in Mobile EnvironmentsKyungtae Kang0Department of Computer Science and Engineering, Hanyang University, Ansan 426-791, Republic of KoreaWireless electrocardiogram (ECG) monitoring involves the measurement of ECG signals and their timely transmission over wireless networks to remote healthcare professionals. However, fluctuations in wireless channel conditions pose quality-of-service challenges for real-time ECG monitoring services in a mobile environment. We present an adaptive framework for layered coding and transmission of ECG data that can cope with a time-varying wireless channel. The ECG is segmented into layers with differing importance with respect to the quality of the reconstructed signal. According to this observation, we have devised a simple and efficient real-time scheduling algorithm based on the earliest deadline first (EDF) policy, which decides the order of transmitting or retransmitting packets that contain ECG data at any given time for the delivery of scalable ECG data over a lossy channel. The algorithm takes into account the differing priorities of packets in each layer, which prevents the perceived quality of the reconstructed ECG signal from degrading abruptly as channel conditions worsen, while using the available bandwidth efficiently. Extensive simulations demonstrate this improvement in perceived quality.http://dx.doi.org/10.1155/2014/678309 |
| spellingShingle | Kyungtae Kang An Adaptive Framework for Real-Time ECG Transmission in Mobile Environments The Scientific World Journal |
| title | An Adaptive Framework for Real-Time ECG Transmission in Mobile Environments |
| title_full | An Adaptive Framework for Real-Time ECG Transmission in Mobile Environments |
| title_fullStr | An Adaptive Framework for Real-Time ECG Transmission in Mobile Environments |
| title_full_unstemmed | An Adaptive Framework for Real-Time ECG Transmission in Mobile Environments |
| title_short | An Adaptive Framework for Real-Time ECG Transmission in Mobile Environments |
| title_sort | adaptive framework for real time ecg transmission in mobile environments |
| url | http://dx.doi.org/10.1155/2014/678309 |
| work_keys_str_mv | AT kyungtaekang anadaptiveframeworkforrealtimeecgtransmissioninmobileenvironments AT kyungtaekang adaptiveframeworkforrealtimeecgtransmissioninmobileenvironments |