Inductance Index Modulation for Human Body Communication Systems

In this letter, a novel low-complexity modulation for capacitive coupled human body communications (CC-HBCs) is proposed. Called inductance index modulation, the proposed method refers to the channel conditions between transmitters and receivers that are used as a new signal space. Precisely, at the...

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Bibliographic Details
Published in:IEEE wireless communications letters 2019-06, Vol.8 (3), p.937-940
Main Authors: Herceg, Marijan, Filipovic, Luka, Matic, Tomislav, Kaddoum, Georges
Format: Article
Language:English
Subjects:
Bit error rate
bit error rate (BER)
channel estimation
Electrodes
Human body
human body communication
Indexes
Inductance
Inductance index modulation
Modulation
Receivers
Transfer functions
Transmitters
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Summary:In this letter, a novel low-complexity modulation for capacitive coupled human body communications (CC-HBCs) is proposed. Called inductance index modulation, the proposed method refers to the channel conditions between transmitters and receivers that are used as a new signal space. Precisely, at the transmitter side, one of the {M=2^{n}} inductances is selected according to the incoming {n} bits, in order to change the CC-HBC channel condition between transmitters and receivers. Then, at the receiver side, the transmitted bits are predicted by estimating the CC-HBC channel conditions using the maximum likelihood detector. The CC-HBC channel is modeled using the transfer function method. The bit error rate performance of the proposed scheme is compared with conventional modulations, yielding a very promising approach.
ISSN:2162-2337
2162-2345
DOI:10.1109/LWC.2019.2900611