TY - GEN
T1 - Energy-efficient distributed beamforming in UWB based implant body area networks
AU - Ding, Jie
AU - Dutkiewicz, Eryk
AU - Huang, Xiaojing
AU - Fang, Gengfa
PY - 2015/7/1
Y1 - 2015/7/1
N2 - In this paper, we investigate a distributed beamforming problem to optimize energy efficiency (EE) in ultra-wideband (UWB) based implant body area networks (IBANs). To evaluate the impact of relay location on the EE, a relay location based cooperative network model is proposed, where multiple on-body relays are employed to assist an implant node to communicate with a BAN coordinator. With the proposed model, the EE optimization problem is mathematically formulated as a non-convex optimization problem. Sequential quadratic programming (SQP) combined with scatter search are applied to find the corresponding optimal solution. Simulation results illustrate that the proposed beamforming scheme outperforms other transmission schemes. A remarkable improvement can be achieved not only in EE but also in spectral efficiency (SE) compared to direct transmission. Moreover, numerical examples show that the relay location has a significant impact on the EE performance.
AB - In this paper, we investigate a distributed beamforming problem to optimize energy efficiency (EE) in ultra-wideband (UWB) based implant body area networks (IBANs). To evaluate the impact of relay location on the EE, a relay location based cooperative network model is proposed, where multiple on-body relays are employed to assist an implant node to communicate with a BAN coordinator. With the proposed model, the EE optimization problem is mathematically formulated as a non-convex optimization problem. Sequential quadratic programming (SQP) combined with scatter search are applied to find the corresponding optimal solution. Simulation results illustrate that the proposed beamforming scheme outperforms other transmission schemes. A remarkable improvement can be achieved not only in EE but also in spectral efficiency (SE) compared to direct transmission. Moreover, numerical examples show that the relay location has a significant impact on the EE performance.
UR - http://www.scopus.com/inward/record.url?scp=84940366652&partnerID=8YFLogxK
U2 - 10.1109/VTCSpring.2015.7145813
DO - 10.1109/VTCSpring.2015.7145813
M3 - Conference proceeding contribution
AN - SCOPUS:84940366652
SN - 9781479980895
VL - 2015
T3 - IEEE Computer Security Foundations Symposium Proceedings
SP - 1
EP - 5
BT - 2015 IEEE 81st Vehicular Technology Conference, VTC Spring 2015 - Proceedings
PB - Institute of Electrical and Electronics Engineers (IEEE)
CY - Glasgow, Scotland
T2 - 81st IEEE Vehicular Technology Conference, VTC Spring 2015
Y2 - 11 May 2015 through 14 May 2015
ER -