System Implementation and Evaluation of an Energy Efficient UWB-Based MAC Protocol for Wireless Body Area Networks - Ultra Wideband Wireless Body Area Networks - page 133

Transmitter antennas Receiver antenna

Fig. 6.14 Experimental set up for on-body measurements

Fitted Line (20 PPB) - No BER Feedback for Scenario 1

Experimental BER (20 PPB)- No BER Feedback
Fitted Line (50 PPB) - No BER Feedback for Scenario 1
Experimental BER (50 PPB)- No BER Feedback
Experimental BER (Variable PPB)- With BER Feedback

1

0.1

0.01

1E-3

1E-4

1E-5

1E-6

0.1 0.2 0.3 0.4 0.5 0.6 0.7

Distance (m)

Fig. 6.15 Experimental BER variations for Scenario 3

performance of the system. Furthermore, results for the variable PPB experiments
demonstrates the improvements of the BER for on-body communication channels
that can be achieved using the BER compensation procedure.