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In this paper, we facilitate device-to-device (D2D) communications to provide relay assistance to cell-edge user equipments (UEs) with the objective of improving system throughput. We first formulate a joint problem of relay node selection which helps cell-edge UEs find the proper relay nodes, as well as spectrum allocation for D2D links to maximize the system throughput with interference constraints...
The skyrocketing increase of mobile traffic exacerbates the stringent demand for high spectrum efficient communications. In this paper, a spectrum reuse scheme is proposed for heterogeneous networks (HetNets) using Stackelberg game approach to decrease cross-tier interference, thereby effectively improving spectrum efficiency. The macro base stations (BSs), acting as leader in the game, allocate a...
Mitigating Inter-cell Interference (ICI) and ensuring seamless high-quality communication are two challenging issues for OFDMA systems. Cell-level coordinated resource allocation and handover (HO) are the two key technologies for achieving these goals. They have been investigated intensively, however, mainly separately. In this paper, a novel combined Handover Guarantee and Interference Mitigation...
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