Optimum receiver location for ultra wideband in-body communication based on channel capacity calculation

Publikationstyp
Conference Paper
Date Issued
2016
Sprache
English
Author(s)
Brumm, Jan-Christoph  orcid-logo
Bauch, Gerhard  
Institut
Nachrichtentechnik E-8  
TORE-URI
http://hdl.handle.net/11420/3410
Citation
BodyNets International Conference on Body Area Networks (2016)
Publisher DOI
10.4108/eai.15-12-2016.2267630
Scopus ID
2-s2.0-85085541523
For the design of ultra wideband (UWB) in-body communication links, e.g. for capsule endoscopes, it is vital to know which maximum data rates are achievable. The channel capacity gives a tool to quantify this theoretic limit. Calculating the channel capacity in a frequency dependent environment requires the knowledge of the transfer function of the communication channel. For this reason, a new channel modeling approach based on a multi-layered dielectric approximation of the human body is presented. From this model, the transfer functions for in-body communication are derived. Based on the channel capacity, we then investigate the number of receive antennas required for reliable high data rate transmission and where to place the receivers on the abdominal surface for optimum reception. Results show that one antenna is not sufficient for in-body UWB communication. However, if the number of antennas is increased to five, the 10%-outage channel capacity can be increased up to 1.55Gbit/s.
Subjects
Channel capacity
Channel modeling
In-body
Receiver diversity
Ultra wideband