Energy-efficient distributed beamforming in UWB based implant body area networks

Publication Type:
Conference Proceeding
IEEE Vehicular Technology Conference, 2015, 2015
Issue Date:
Full metadata record
Files in This Item:
Filename Description Size
474C0AC5-2C2D-4CB7-806F-223436FDFC97 am edited.pdfAccepted Manuscript version138.33 kB
Adobe PDF
© 2015 IEEE. 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.
Please use this identifier to cite or link to this item: