TY - GEN
T1 - Rate-switching unequal error protection for wireless electrocardiogram (ECG) transmission
AU - Ma, Tao
AU - Hempel, Michael
AU - Peng, Dongming
AU - Sharif, Hamid
PY - 2010
Y1 - 2010
N2 - Energy efficiency for mobile wireless electrocardiography (ECG) communication is an important issue due to resource constraints in wireless Body Area Sensor Networks (BASNs). Traditional high quality ECG transmission schemes require substantial amounts of energy usage, which may not be available in BASN. Therefore, an adaptive approach is necessary to provide high quality ECG transmission with efficient usage of available energy resources. Related literature mainly focuses on data compression, where transmission energy is saved because the amount of data being transmitted is reduced. However, further reduction of energy consumption based on communication strategy is rarely discussed in literature. In this paper, we analyze the characteristics of compressed ECG data, which show that different parts of the data are unequally important to quality of ECG transmission in BASN. In this work, we propose a new Rate-switching Un-Equal Protection (RUEP) mechanism, which optimizes the distortion reduction of ECG data by adaptively assigning different Rate Compatible Punctured Convolutional (RCPC) codes to protect the different parts of the compressed ECG data. Simulation results demonstrate that our RUEP scheme results in an improved communication energy efficiency by at least 45 percent compared with traditional schemes in the AWGN channel.
AB - Energy efficiency for mobile wireless electrocardiography (ECG) communication is an important issue due to resource constraints in wireless Body Area Sensor Networks (BASNs). Traditional high quality ECG transmission schemes require substantial amounts of energy usage, which may not be available in BASN. Therefore, an adaptive approach is necessary to provide high quality ECG transmission with efficient usage of available energy resources. Related literature mainly focuses on data compression, where transmission energy is saved because the amount of data being transmitted is reduced. However, further reduction of energy consumption based on communication strategy is rarely discussed in literature. In this paper, we analyze the characteristics of compressed ECG data, which show that different parts of the data are unequally important to quality of ECG transmission in BASN. In this work, we propose a new Rate-switching Un-Equal Protection (RUEP) mechanism, which optimizes the distortion reduction of ECG data by adaptively assigning different Rate Compatible Punctured Convolutional (RCPC) codes to protect the different parts of the compressed ECG data. Simulation results demonstrate that our RUEP scheme results in an improved communication energy efficiency by at least 45 percent compared with traditional schemes in the AWGN channel.
KW - Body area sensor network
KW - Electrocardiography
KW - Energy efficiency
KW - Rate-compatible puncture convolutional code
KW - Rate-switching un-equal protection
UR - http://www.scopus.com/inward/record.url?scp=79951616356&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79951616356&partnerID=8YFLogxK
U2 - 10.1109/MILCOM.2010.5680106
DO - 10.1109/MILCOM.2010.5680106
M3 - Conference contribution
AN - SCOPUS:79951616356
SN - 9781424481804
T3 - Proceedings - IEEE Military Communications Conference MILCOM
SP - 1181
EP - 1186
BT - 2010 IEEE Military Communications Conference, MILCOM 2010
T2 - 2010 IEEE Military Communications Conference, MILCOM 2010
Y2 - 31 October 2010 through 3 November 2010
ER -