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In this paper, we design a resource allocation (RA) scheme for the downlink of relay-assisted orthogonal frequency division multiple access cellular networks. Our design goal is to maximize the energy efficiency (EE) with minimal signaling overhead and low computational complexity. To alleviate the signaling overhead of channel information, the proposed scheme allocates the resources in a distributed...
The Device-to-Device (D2D) communication underlaying cellular networks has advantages of improving the spectral utilization, data rate, and energy efficiency. This paper studies a position-based mode selection and resource allocation scheme for D2D communications underlaying cellular networks. With position information available, first an offline channel state information (CSI) retrieval model is...
In a traditional cellular network, the base station (BS) plays a critical role in linking devices for communications, but the huge user demand, especially in cities, has become a cost burden to the BS. The technique of device-to-device (D2D) communications underlaying cellular networks solves this problem and adds benefits to resource utilization. Nevertheless, the issue of how to efficiently utilize...
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