Improving ultra wideband in-body communication using space diversity

Publikationstyp
Conference Paper
Publikationsdatum
2019-02
Sprache
English
Author
Brumm, Jan-Christoph orcid-logo
Kohagen, Joschua 
Bauch, Gerhard 
Institut
Nachrichtentechnik E-8 
TORE-URI
http://hdl.handle.net/11420/3635
Citation
International Conference on Systems, Communications and Coding (2019)
Contribution to Conference
12th International ITG Conference on Systems, Communications and Coding, SCC 2019 
Publisher DOI
10.30420/454862027
Scopus ID
2-s2.0-85069040754
Publisher
VDE
For certain medical applications, e.g. capsule endoscopy, high resolution images need to be transmitted from the inside of the human body to an on-body receiver. Ultra wideband communication is widely considered a feasible alternative to increase the data rate compared to today's available products operating with narrowband communication. Based on a channel model developed specifically for in-body communication in the ultra wideband frequency range, we simulate the bit error rate of a communication link utilizing ultra wideband pulse position modulation. First of all, the effect on the bit error rate depending on the position of one antenna is investigated. Furthermore, up to 5 receive antennas are placed on the skin and space diversity is exploited using different combining schemes, which are systematically compared. Results show that the placement of the receive antennas is much more important for a successful data transmission, than the choice of the combining scheme. Due to the high attenuation inside the body maximum ratio combining performs similar to selection combining.