Research Article
Optimum Receiver Location for Ultra Wideband In-Body Communication Based on Channel Capacity Calculation
@INPROCEEDINGS{10.4108/eai.15-12-2016.2267630, author={Jan-Christoph Brumm and Gerhard Bauch}, title={Optimum Receiver Location for Ultra Wideband In-Body Communication Based on Channel Capacity Calculation}, proceedings={11th International Conference on Body Area Networks}, publisher={ACM}, proceedings_a={BODYNETS}, year={2017}, month={4}, keywords={in-body channel modeling ultra wideband channel capacity receiver diversity}, doi={10.4108/eai.15-12-2016.2267630} }- Jan-Christoph Brumm
Gerhard Bauch
Year: 2017
Optimum Receiver Location for Ultra Wideband In-Body Communication Based on Channel Capacity Calculation
BODYNETS
EAI
DOI: 10.4108/eai.15-12-2016.2267630
Abstract
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 1.55 Gbit/s.