TY - GEN
T1 - A dynamic pilot interval adjustment scheme for HBC channel estimation
AU - Zhang, Yan
AU - Kou, Baohua
AU - Fan, Dandan
AU - Liu, Yang
AU - He, Zunwen
AU - Chen, Xiang
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/10/7
Y1 - 2016/10/7
N2 - As one important part of Internet of Things (IoT), wireless body area networks (WBANs) get rapid development in recent years. The majority of current WBAN researchers focus on the radio frequency (RF) solutions. However, there are still some intrinsic defects in the RF-based WBANs. Recently, human body communication (HBC) has been proposed in which the body itself is used as the propagation medium. To achieve high spectrum efficiency and power efficiency by HBC, one critical work is to acquire the channel information. In this paper, the HBC channel fading characteristics are measured and summarized. It is shown that the HBC channel is influenced by the body shape instead of the outside environment. When human body is in movement, normal random process can be used to describe the variations of HBC channel fading. Then, we propose a dynamic pilot interval adjustment scheme for HBC channel estimation. By applying this scheme, the pilot intervals in time domain can be adjusted along with the time-varying channel fading. The performance of the proposed scheme is evaluated by using measurement-based HBC channel fading model. It is proved that this scheme can substantially reduce the number of pilots without losing much accuracy and it can be beneficial for saving energy in the HBC networks.
AB - As one important part of Internet of Things (IoT), wireless body area networks (WBANs) get rapid development in recent years. The majority of current WBAN researchers focus on the radio frequency (RF) solutions. However, there are still some intrinsic defects in the RF-based WBANs. Recently, human body communication (HBC) has been proposed in which the body itself is used as the propagation medium. To achieve high spectrum efficiency and power efficiency by HBC, one critical work is to acquire the channel information. In this paper, the HBC channel fading characteristics are measured and summarized. It is shown that the HBC channel is influenced by the body shape instead of the outside environment. When human body is in movement, normal random process can be used to describe the variations of HBC channel fading. Then, we propose a dynamic pilot interval adjustment scheme for HBC channel estimation. By applying this scheme, the pilot intervals in time domain can be adjusted along with the time-varying channel fading. The performance of the proposed scheme is evaluated by using measurement-based HBC channel fading model. It is proved that this scheme can substantially reduce the number of pilots without losing much accuracy and it can be beneficial for saving energy in the HBC networks.
KW - channel estimation
KW - dynamic pilot interval
KW - energy efficiency
KW - human body communication (HBC)
KW - wireless body area network (WBAN)
UR - http://www.scopus.com/inward/record.url?scp=84994744815&partnerID=8YFLogxK
U2 - 10.1109/ICCChinaW.2016.7586721
DO - 10.1109/ICCChinaW.2016.7586721
M3 - Conference contribution
AN - SCOPUS:84994744815
T3 - 2016 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2016
BT - 2016 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2016 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2016
Y2 - 27 July 2016 through 29 July 2016
ER -
