This paper considers applying simultaneous wireless information and power transfer (SWIPT) technique to cooperative clustered wireless sensor networks, where energy-constrained relay nodes harvest the ambient radiofrequency (RF) signal and use the harvested energy to forward the packets from sources to destinations. To this end, we first formulate the energy-efficient cooperative transmission (...

Conventional wireless information transfer by modulating the amplitude, phase or frequency leads to an inevitable Rate-Energy (RE) trade-off in the presence of simultaneous Wireless Power Transfer (WPT). In echoing Varshney’s seminal concept of jointly transmitting both information and energy, we propose the so-called Generalised Precoded Spatial Modulation (GPSM) aided Integrated Wireless Info...

In this paper, simultaneous wireless information and power transfer based on time–frequency block allocation (TFBA-SWIPT) is proposed to save the energy of an orthogonal frequency-division multiplex (OFDM) decode-and-forward cooperative communication system, by allocating different resource blocks for decoding harvesting at relay destinations. The joint optimized maximize transmission rate dest...

Currently, we are faced with an ever-increasing number of devices and objects connected to the Internet aimed at creating so-called Things framework, fostering creation a world objects. One main challenges actually facing is constituted by constrained sizes such objects: reduced memory, computational capacity, battery sizes. Particular attention should be devoted energy efficiency, since potent...

Simultaneous wireless information and power transfer (SWIPT) architecture is commonly applied in sensors or Internet of Things (IoT) devices, providing both sources communication channels. However, the traditional SWIPT transmitter usually suffers from cross-talk distortion caused by high peak-to-average ratio input signal reduction amplifier efficiency. This paper proposes a transmitting based...

In today's smart world, the Internet of Things (IoT) offers a very large scale technologies and use cases. An IoT system comprises huge amount low-power network elements, sensors, devices connected to each other. For these devices, it is important have sufficient level energy resource for communication receive software/firmware updates periodically. this aspect, wireless power transfer popular ...