The Experts below are selected from a list of 27954 Experts worldwide ranked by ideXlab platform
Harald Haas - One of the best experts on this subject based on the ideXlab platform.
-
on the design of a Solar Panel receiver for optical wireless communications with simultaneous energy harvesting
IEEE Journal on Selected Areas in Communications, 2015Co-Authors: Zixiong Wang, Dobroslav Tsonev, Stefan Videv, Harald HaasAbstract:This paper proposes a novel design of an optical wireless communications (OWC) receiver using a Solar Panel as a photodetector. The proposed system is capable of simultaneous data transmission and energy harvesting. The Solar Panel can convert a modulated light signal into an electrical signal without any external power requirements. Furthermore, the direct current (DC) component of the modulated light can be harvested in the proposed receiver. The generated energy can potentially be used to power a user terminal or at least to prolong its operation time. The current work discusses the various parameters which need to be considered in the design of a system using a Solar Panel for simultaneous communication and energy harvesting. The presented theory is supported with an experimental implementation of orthogonal frequency division multiplexing (OFDM), thus, proving the validity of the analysis and demonstrating the feasibility of the proposed receiver. Using the propounded system, a communication link with a data rate of 11.84 Mbps is established for a received optical signal with a peak-to-peak amplitude of $\hbox{0.7}\times \hbox{10}^{-3}\ \hbox{W}/\hbox{cm}^{2}$ .
-
Towards self-powered Solar Panel receiver for optical wireless communication
2014 IEEE International Conference on Communications ICC 2014, 2014Co-Authors: Zixiong Wang, Dobroslav Tsonev, Stefan Videv, Harald HaasAbstract:In this paper, we experimentally demonstrate the feasibility of optical wireless communication (OWC) systems with a Solar Panel as a photo-detector. The advantage of a Solar Panel is that it is a passive device, which does not require an additional power supply for converting the received light signal into an electrical signal. The frequency response of a Solar Panel shows that its 3-dB modulation bandwidth is 350 kHz. The results demonstrate that for a 1-Mbit/s on-off keying signal, a bit error rate of less than 2 × 10-3 could be achieved when the average irradiance on the Solar Panel is 3.5 × 10-4 W/cm2. In the current experimental setup, this corresponds to a transmission distance of 39 cm. A data rate of 7.01 Mbit/s is achieved by using orthogonal frequency division multiplexing. In addition, the feasibility of using the Solar Panel for simultaneous communication and energy harvesting is investigated. A load is connected in parallel to the receiver circuit in order to simulate the conditions of charging a battery by using the received signal's DC component. It is shown that the load does not hamper the communication capabilities. Hence, an OWC system with a Solar-Panel-based receiver can satisfy the requirements of simultaneous communication and energy harvesting.
Zixiong Wang - One of the best experts on this subject based on the ideXlab platform.
-
on the design of a Solar Panel receiver for optical wireless communications with simultaneous energy harvesting
IEEE Journal on Selected Areas in Communications, 2015Co-Authors: Zixiong Wang, Dobroslav Tsonev, Stefan Videv, Harald HaasAbstract:This paper proposes a novel design of an optical wireless communications (OWC) receiver using a Solar Panel as a photodetector. The proposed system is capable of simultaneous data transmission and energy harvesting. The Solar Panel can convert a modulated light signal into an electrical signal without any external power requirements. Furthermore, the direct current (DC) component of the modulated light can be harvested in the proposed receiver. The generated energy can potentially be used to power a user terminal or at least to prolong its operation time. The current work discusses the various parameters which need to be considered in the design of a system using a Solar Panel for simultaneous communication and energy harvesting. The presented theory is supported with an experimental implementation of orthogonal frequency division multiplexing (OFDM), thus, proving the validity of the analysis and demonstrating the feasibility of the proposed receiver. Using the propounded system, a communication link with a data rate of 11.84 Mbps is established for a received optical signal with a peak-to-peak amplitude of $\hbox{0.7}\times \hbox{10}^{-3}\ \hbox{W}/\hbox{cm}^{2}$ .
-
Towards self-powered Solar Panel receiver for optical wireless communication
2014 IEEE International Conference on Communications ICC 2014, 2014Co-Authors: Zixiong Wang, Dobroslav Tsonev, Stefan Videv, Harald HaasAbstract:In this paper, we experimentally demonstrate the feasibility of optical wireless communication (OWC) systems with a Solar Panel as a photo-detector. The advantage of a Solar Panel is that it is a passive device, which does not require an additional power supply for converting the received light signal into an electrical signal. The frequency response of a Solar Panel shows that its 3-dB modulation bandwidth is 350 kHz. The results demonstrate that for a 1-Mbit/s on-off keying signal, a bit error rate of less than 2 × 10-3 could be achieved when the average irradiance on the Solar Panel is 3.5 × 10-4 W/cm2. In the current experimental setup, this corresponds to a transmission distance of 39 cm. A data rate of 7.01 Mbit/s is achieved by using orthogonal frequency division multiplexing. In addition, the feasibility of using the Solar Panel for simultaneous communication and energy harvesting is investigated. A load is connected in parallel to the receiver circuit in order to simulate the conditions of charging a battery by using the received signal's DC component. It is shown that the load does not hamper the communication capabilities. Hence, an OWC system with a Solar-Panel-based receiver can satisfy the requirements of simultaneous communication and energy harvesting.
Hao Li - One of the best experts on this subject based on the ideXlab platform.
-
A novel adaptive sun tracker for spacecraft Solar Panel based on hybrid unsymmetric composite laminates
Smart Materials and Structures, 2017Co-Authors: Zhangming Wu, Hao LiAbstract:This paper proposes a novel adaptive sun tracker which is constructed by hybrid unsymmetric composite laminates. The adaptive sun tracker could be applied on spacecraft Solar Panels to increase their energy efficiency through decreasing the inclined angle between the sunlight and the Solar Panel normal. The sun tracker possesses a large rotation freedom and its rotation angle depends on the laminate temperature, which is affected by the light condition in the orbit. Both analytical model and finite element model (FEM) are developed for the sun tracker to predict its rotation angle in different light conditions. In this work, the light condition of the geosynchronous orbit on winter solstice is considered in the numerical prediction of the temperatures of the hybrid laminates. The final inclined angle between the sunlight and the Solar Panel normal during a Solar day is computed using the finite element model. Parametric study of the adaptive sun tracker is conducted to improve its capacity and effectiveness of sun tracking. The improved adaptive sun tracker is lightweight and has a state-of-the-art design. In addition, the adaptive sun tracker does not consume any power of the Solar Panel, since it has no electrical driving devices. The proposed adaptive sun tracker provides a potential alternative to replace the traditional sophisticated electrical driving mechanisms for spacecraft Solar Panels.
Dobroslav Tsonev - One of the best experts on this subject based on the ideXlab platform.
-
on the design of a Solar Panel receiver for optical wireless communications with simultaneous energy harvesting
IEEE Journal on Selected Areas in Communications, 2015Co-Authors: Zixiong Wang, Dobroslav Tsonev, Stefan Videv, Harald HaasAbstract:This paper proposes a novel design of an optical wireless communications (OWC) receiver using a Solar Panel as a photodetector. The proposed system is capable of simultaneous data transmission and energy harvesting. The Solar Panel can convert a modulated light signal into an electrical signal without any external power requirements. Furthermore, the direct current (DC) component of the modulated light can be harvested in the proposed receiver. The generated energy can potentially be used to power a user terminal or at least to prolong its operation time. The current work discusses the various parameters which need to be considered in the design of a system using a Solar Panel for simultaneous communication and energy harvesting. The presented theory is supported with an experimental implementation of orthogonal frequency division multiplexing (OFDM), thus, proving the validity of the analysis and demonstrating the feasibility of the proposed receiver. Using the propounded system, a communication link with a data rate of 11.84 Mbps is established for a received optical signal with a peak-to-peak amplitude of $\hbox{0.7}\times \hbox{10}^{-3}\ \hbox{W}/\hbox{cm}^{2}$ .
-
Towards self-powered Solar Panel receiver for optical wireless communication
2014 IEEE International Conference on Communications ICC 2014, 2014Co-Authors: Zixiong Wang, Dobroslav Tsonev, Stefan Videv, Harald HaasAbstract:In this paper, we experimentally demonstrate the feasibility of optical wireless communication (OWC) systems with a Solar Panel as a photo-detector. The advantage of a Solar Panel is that it is a passive device, which does not require an additional power supply for converting the received light signal into an electrical signal. The frequency response of a Solar Panel shows that its 3-dB modulation bandwidth is 350 kHz. The results demonstrate that for a 1-Mbit/s on-off keying signal, a bit error rate of less than 2 × 10-3 could be achieved when the average irradiance on the Solar Panel is 3.5 × 10-4 W/cm2. In the current experimental setup, this corresponds to a transmission distance of 39 cm. A data rate of 7.01 Mbit/s is achieved by using orthogonal frequency division multiplexing. In addition, the feasibility of using the Solar Panel for simultaneous communication and energy harvesting is investigated. A load is connected in parallel to the receiver circuit in order to simulate the conditions of charging a battery by using the received signal's DC component. It is shown that the load does not hamper the communication capabilities. Hence, an OWC system with a Solar-Panel-based receiver can satisfy the requirements of simultaneous communication and energy harvesting.
Stefan Videv - One of the best experts on this subject based on the ideXlab platform.
-
on the design of a Solar Panel receiver for optical wireless communications with simultaneous energy harvesting
IEEE Journal on Selected Areas in Communications, 2015Co-Authors: Zixiong Wang, Dobroslav Tsonev, Stefan Videv, Harald HaasAbstract:This paper proposes a novel design of an optical wireless communications (OWC) receiver using a Solar Panel as a photodetector. The proposed system is capable of simultaneous data transmission and energy harvesting. The Solar Panel can convert a modulated light signal into an electrical signal without any external power requirements. Furthermore, the direct current (DC) component of the modulated light can be harvested in the proposed receiver. The generated energy can potentially be used to power a user terminal or at least to prolong its operation time. The current work discusses the various parameters which need to be considered in the design of a system using a Solar Panel for simultaneous communication and energy harvesting. The presented theory is supported with an experimental implementation of orthogonal frequency division multiplexing (OFDM), thus, proving the validity of the analysis and demonstrating the feasibility of the proposed receiver. Using the propounded system, a communication link with a data rate of 11.84 Mbps is established for a received optical signal with a peak-to-peak amplitude of $\hbox{0.7}\times \hbox{10}^{-3}\ \hbox{W}/\hbox{cm}^{2}$ .
-
Towards self-powered Solar Panel receiver for optical wireless communication
2014 IEEE International Conference on Communications ICC 2014, 2014Co-Authors: Zixiong Wang, Dobroslav Tsonev, Stefan Videv, Harald HaasAbstract:In this paper, we experimentally demonstrate the feasibility of optical wireless communication (OWC) systems with a Solar Panel as a photo-detector. The advantage of a Solar Panel is that it is a passive device, which does not require an additional power supply for converting the received light signal into an electrical signal. The frequency response of a Solar Panel shows that its 3-dB modulation bandwidth is 350 kHz. The results demonstrate that for a 1-Mbit/s on-off keying signal, a bit error rate of less than 2 × 10-3 could be achieved when the average irradiance on the Solar Panel is 3.5 × 10-4 W/cm2. In the current experimental setup, this corresponds to a transmission distance of 39 cm. A data rate of 7.01 Mbit/s is achieved by using orthogonal frequency division multiplexing. In addition, the feasibility of using the Solar Panel for simultaneous communication and energy harvesting is investigated. A load is connected in parallel to the receiver circuit in order to simulate the conditions of charging a battery by using the received signal's DC component. It is shown that the load does not hamper the communication capabilities. Hence, an OWC system with a Solar-Panel-based receiver can satisfy the requirements of simultaneous communication and energy harvesting.
