Throughput Maximization in Wireless Powered Communication Networks
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Cites background or methods or result from "Throughput Maximization in Wireless..."
...The study in [17] extends [143] by considering the case with a multi-antenna access point....
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...The simulations show that the proposed protocol is superior to the harvest-thentransmit protocol [143] reviewed above in all considered cases....
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...Simulation results show that the fixed point iteration algorithm achieves similar individual throughput compared to the iterative algorithm in [143] but with much lower computation complexity....
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...This doubly near-far phenomenon has been considered in different network models [17], [143], [144]....
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...In [143], a joint downlink RF energy transfer and uplink information transmission problem is investigated in a multiple access system....
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2,289 citations
Cites background from "Throughput Maximization in Wireless..."
...• Moreover, wireless power transfer (WPT), which charges mobile devices using RF wave [209], [210], is a newlyemerged solution that enables wireless charging and extends the battery life....
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1,032 citations
Cites background or methods from "Throughput Maximization in Wireless..."
...ontrollable energy source, a wireless powered communication network (WPCN) could be efficiently built to power multiple communic ation devices of different physical conditions and service requirements [3]. Besides, with RF-enabled WET, information could also be jointly transmitted with energy using the same waveform. Such a design paradigm is referred to as simultaneous wireless information and power ...
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...ess energy within the short duration of DL WET. Otherwise, a larger τ0 is required for the far users to harvest sufficient energy before commencing reliab le data transmission. In fact, it is shown in [3] that the optimal value of τ0 that maximizes the sum-rate decreases as the sum of channel power gains of all users increases. B. Doubly-near-far problem Besides setting the optimal duration for WET in...
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...the HAP (U2) harvests much lower wireless energy in the DL but consumes more to transmit data in the UL than a user near the HAP (U1). This coupled effect is referred to as the doubly-near-far problem[3], which could result in very low throughput for far users, e.g., 100times less data rate than a nearby user, if the multiple access scheme is not properly designed. When TDMA is used in the second pha...
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...em. Here, we consider another scenario that the wireless devices use the harvested energy to transmit information. This design paradigm is referred to as wireless powered communication network (WPCN) [3]. In this section, we introduce the basic operations of a WPCN, the key design challenges and solutions, and interesting extensions to many practical network models. A. Harvest-then-transmit protocol ...
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...onally, the receivers perform EH in the DL transmission of WPCN mode while sending data in the UL with harvested energy, with applications such as sensor battery charging and data collection in a WSN [3]. For the SWIPT mode, the receivers perform both EH and information decoding (ID) in the DL with the same received signals, each using harvested energy to power its information decoder, e.g., in an en...
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718 citations
References
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