An Energy Efficient Cooperative Communication Scheme in Ambient RF Powered Sensor Networks

The ambient radio frequency (RF) energy harvesting technology has recently been regarded as a potential solution for powering the wireless sensor networks (WSNs). However, the ultra-low power density of ambient RF energy is the main impediment to its further application. In this paper, we propose a novel energy efficient cooperative communication scheme (EECCS), which combines energy beamforming communication and ambient backscatter communication, to overcome the energy problem of WSNs powered by ambient RF energy harvesting. Moreover, to further reduce the energy consumption of nodes, we present an optimal resource allocation problem for EECCS. It can be formulated as a signomial geometric programming (SGP), which is nonconvex and NP-hard. We develop a Sequential Convex Approximation (SCA) algorithm for finding a solution of this SGP problem, which transforms the SGP problem into a sequence of geometric programming (GP) problems that are convex. The simulation results indicate that the EECCS can improve the energy efficiency of the ambient RF powered WSNs and maximize the total amount of data received by the sink.

[1]  Hideki Ochiai,et al.  Dynamic Coded Cooperation Using Multiple Turbo Codes in Wireless Relay Networks , 2011, IEEE Journal of Selected Topics in Signal Processing.

[2]  Hwee Pink Tan,et al.  Opportunistic routing in wireless sensor networks powered by ambient energy harvesting , 2010, Comput. Networks.

[3]  Angli Liu,et al.  Turbocharging ambient backscatter communication , 2014, SIGCOMM.

[4]  David Wetherall,et al.  Ambient backscatter: wireless communication out of thin air , 2013, SIGCOMM.

[5]  Wei Liu,et al.  Backscatter Relay Communications Powered by Wireless Energy Beamforming , 2018, IEEE Transactions on Communications.

[6]  Liusheng Huang,et al.  Energy-Efficient Cooperative Communications with Shared Relay in Wireless Networks , 2017, GLOBECOM 2017 - 2017 IEEE Global Communications Conference.

[7]  Xiaodong Wang,et al.  A Cooperative SWIPT Scheme for Wirelessly Powered Sensor Networks , 2017, IEEE Transactions on Communications.

[8]  C.-C. Jay Kuo,et al.  Cooperative Communications in Resource-Constrained Wireless Networks , 2007, IEEE Signal Processing Magazine.

[9]  Zhuo Wu,et al.  Interference mitigation for downlink base station cooperation with joint distributed space-time coding , 2011 .

[10]  Xiaoxia Huang,et al.  Robust Cooperative Routing for Ambient Backscatter Wireless Sensor Networks , 2017, GLOBECOM 2017 - 2017 IEEE Global Communications Conference.

[11]  Zhu Han,et al.  The Tradeoff Analysis in RF-Powered Backscatter Cognitive Radio Networks , 2016, 2016 IEEE Global Communications Conference (GLOBECOM).

[12]  Tsungnan Lin,et al.  Decentralized Learning-Based Relay Assignment for Cooperative Communications , 2016, IEEE Transactions on Vehicular Technology.

[13]  Tan-Phu Vuong,et al.  Dual-band rectenna for ambient RF energy harvesting at GSM 900 MHz and 1800 MHz , 2016, 2016 IEEE International Conference on Sustainable Energy Technologies (ICSET).

[14]  Shankar Prakriya,et al.  Performance of Secondary Network With Primary Beamforming-Assisted Energy Harvesting Transmitters , 2017, IEEE Transactions on Vehicular Technology.

[15]  Dimitrios Peroulis,et al.  Energy-Efficient Transmission for Beamforming in Wireless Sensor Networks , 2010, 2010 7th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks (SECON).

[16]  Sergiy A. Vorobyov,et al.  Collaborative beamforming for wireless sensor networks with Gaussian distributed sensor nodes , 2009, IEEE Trans. Wirel. Commun..

[17]  Masoud Ardakani,et al.  Network Coded Cooperation Based on Relay Selection with Imperfect CSI , 2017, 2017 IEEE 86th Vehicular Technology Conference (VTC-Fall).

[18]  Jie Xu,et al.  Wireless Powered Sensor Networks: Collaborative Energy Beamforming Considering Sensing and Circuit Power Consumption , 2016, IEEE Wireless Communications Letters.

[19]  Carles Antón-Haro,et al.  Joint Optimization of Transmission Policies for Collaborative Beamforming With Energy Harvesting Sensors , 2014, IEEE Transactions on Wireless Communications.

[20]  Cheng Li,et al.  Optimal Power Allocation for Dual-Hop Full-Duplex Decode-and-Forward Relay , 2015, IEEE Communications Letters.

[21]  Mohamed-Slim Alouini,et al.  Opportunistic Energy-Aware Amplify-and-Forward Cooperative Systems With Imperfect CSI , 2016, IEEE Transactions on Vehicular Technology.

[22]  Bo Rong,et al.  Fountain Coded Cooperative Communications for LTE-A Connected Heterogeneous M2M Network , 2016, IEEE Access.