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This paper investigates a wireless-powered cooperative communication network consisting of a source, a destination and a multi-antenna decode-and-forward relay. We consider the relay as a wireless-powered node that has no external power supply; but it is equipped with an energy harvesting (EH) unit and a rechargeable battery such that it can harvest and accumulate energy from radio-frequency signals...
This paper investigates a wireless-powered cooperative network (WPCN) consisting of one source-destination pair and multiple decode-and-forward (DF) relays. We consider that the DF relays are wireless-powered such that they rely only on the harvested energy from the source to perform information forwarding. Furthermore, these relays are equipped with separate energy and information receivers as well...
The recent advance in radio frequency (RF) energy transfer has enabled wireless-powered communication (WPC), where wireless devices are powered by dedicated wireless energy transmitters. In this paper, we study a WPC scenario consisting of one access point (AP) and one user. The user is assumed to have no embedded energy supply and need to harvest energy from RF signals broadcast by the AP. Different...
We investigate the spectrum sharing problem of a radio frequency (RF)-powered cognitive radio network, where a multi-antenna secondary user (SU) harvests energy from RF signals radiated by a primary user (PU) to boost its available energy before information transmission. In this paper, we consider that both the PU and SU are rational and self-interested. Based on whether the SU helps forward the PU's...
In this paper, we study a full-duplex wireless-powered communication network (FD-WPCN), which consists of one full-duplex (FD) hybrid access-point (H-AP) and one FD user. The H-AP and user are both equipped with two antennas, one for downlink wireless energy transfer (WET) from the H-AP to user and the other for uplink wireless information transfer (WIT) from the user to H-AP, where WET and WIT are...
In smart grid, residential consumers adopt different load scheduling methods to manage their power consumptions with specific objectives. The conventional load scheduling methods aim to maximize the consumption payoff or minimize the consumption cost. In this paper, we introduce a novel concept of cost efficiency-based residential load scheduling framework to improve the economical efficiency of the...
To improve the economical efficiency of the residential electricity consumption, in this paper we introduce a novel concept of cost efficiency-based residential load scheduling framework. The cost efficiency is defined as a ratio of consumer's total consumption benefit and its total electricity payment during a certain period. We develop a cost-efficient load scheduling algorithm for the demand-side's...
In heterogeneous networks (HetNets), the load between macro-cell base stations (MBSs) and small-cell BSs (SBSs) is imbalanced due to transmit power disparities and ad-hoc deployment of SBSs. This significantly impacts the system performance and user experience. Associating more users to the SBSs is an effective way to solve this problem. In this paper, we formulate the user-BS association problem...
In this paper, we investigate a new polynomial pricing function based demand side management scheme for future smart grid, where the consumers are charged based on their instantaneous load. A non-cooperative game is formulated, where each consumer aims to minimize their total energy cost based on the given pricing function. By casting this game in the variational inequality framework, we present sufficient...
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