Title :
A coding algorithm for SMS data transmission in tele-home care system
Author :
Xu, Xiaomin ; Liu, Ying
Author_Institution :
Dept. of Electr. & Comput. Eng., Portsmouth Univ., UK
Abstract :
This paper presents a data coding algorithm. The aim of this work is to improve the transmission efficiency of signals in SMS-based (Short Message Service) tele-home care system. This system uses the mobile phone to transmit ECG data with maximal 160 ASCII codes in one packet. The ECG data is encoded using Coding Function (CF), transformed to ASCII codes, and then sent out using a SMS emulator and mobile phone (Siemens C35i) at the transmit end. At the receive end, the ECG data can be received and decoded using the decoding function and displayed on personal computer. Preliminary evaluations show that, with different CF, the modulation efficiency and PRD (Percent Root-mean-square Difference) are variable. Normally, linear transformation is considerable with small and acceptable distortion. Sometimes, special data need to be emphasized, in this case, multilinear and nonlinear coding function will be employed.
Keywords :
data communication; decoding; electrocardiography; electronic messaging; encoding; health care; mobile handsets; telemedicine; ASCII codes; ECG data transmission; Siemens C35i; data coding algorithm; decoding; decoding function; emulator; encoding; linear transformation; mobile phone; multilinear coding function; nonlinear coding function; percent root-mean-square difference; personal computer; short message service; tele-home care system; Data communication; Data engineering; Decoding; Electrocardiography; Medical services; Message service; Microcomputers; Mobile handsets; Nonlinear distortion; Signal restoration;
Conference_Titel :
Engineering in Medicine and Biology Society, 2003. Proceedings of the 25th Annual International Conference of the IEEE
Print_ISBN :
0-7803-7789-3
DOI :
10.1109/IEMBS.2003.1280952
