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In this paper, we model and analyze the resource management problem of energy harvesting-based underlaying device-to-device (D2D) communication in uplink cellular networks (CNs). D2D transmitter can harvest energy from ambient inter- ference and reuse the spectrum of the cellular users (CUs) to com- municate with corresponding receiver. The energy of transmitters comes form the mix of the harvested...
In this paper, we investigate the energy-efficient uplink radio resource allocation scheme with quality of service (QoS) guarantees in heterogeneous wireless networks. All mobile terminals (MTs) have multi-homing capability, which can communicate with access points (APs) of the multiple radio access technologies (RATs) simultaneously. Currently, the energy efficiency (EE) is very important in the...
A novel ring-tree TWDM optical access network architecture using matrix optical switch and OEO wavelength converter is proposed. The architecture owns flexible on-demand wavelength and timeslot provision, OLT energy saving ability and backward compatibility.
The problem of minimizing the sum of a number of component functions is of great importance in the real world. In this paper, a new incremental optimization algorithm, named normalized incremental subgradient (NIS) algorithm, is proposed for a class of such problems where the component functions have common local minima. The NIS algorithm is performed incrementally just as the general incremental...
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