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In this paper, we construct an analytical design framework for energy efficient scheduling for delay-constrained spectrum aggregation (ESSA), where the practical hardware limitations on SA capability bring various technical challenges. Specifically, the conventional water-filling power control cannot be adopted over all the channels, and the delay-aware(More)
Cooperative multicast has been demonstrated to achieve significant performance gain over the classic source-destination transmission paradigm by exploiting spatial diversity through the participation of multiple relay nodes. As a major technical challenge, the selection of relays for a multicast session has significant impact on the multicast performance.(More)
Device-to-device (D2D) relaying in a store-carryforward manner can efficiently expand the transmission range of D2D traffic offloading in cellular systems, which needs external incentives to promote the cooperation of relay nodes who are tend to be selfish. Different to the existing incentive mechanisms which usually adopt large enough incentives, we(More)
Centralized joint processing has been demonstrated to achieve significant performance gain over the conventional per-cell processing by avoiding the inter-cell interference in cloud radio access networks (C-RANs), but full scale cooperation over the entire network is infeasible due to its huge computational complexity. The goal of this paper is to design(More)
Spectrum aggregation (SA) enables wireless devices to utilize heterogeneous resources, which can potentially fulfill the requirement of broadband services. In this paper, we study the delay-constrained SA, where the characteristics of SA bring various technical challenges. Specifically, the SA capability limitation induces a complicated coupling among the(More)
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