… correlation clustering algorithm is introduced for femtocell … Consider a two-tier HCN, which
includes UEs, FBSs and a … It is shown that network EE gain increases with FBSs density in the …

… of a cluster based resource allocation approach for dense … of an OFDMA macro- femtocell
network with several femtocells, … complexity of the resource allocation in a two-tier network. As …

… a two-tier micro-femtocell based heterogeneous ultra-dense … model of multicell OFDMA
network has been presented in [15]. … the network has k MiBSs, we have k microfemtocell clusters. …

… access (OFDMA) based two-tier femtocell networks, in which … User clustering and power
allocation are jointly optimized in [… resource allocation for downlink NOMA based two-tier HSCN …

… Femtocell (FC) dense exploitation imposes a novel challenge for the resource allotment in
a 2-tier network, like: (1) … OFDMA-based two-tier HetNet, with spectrum sharing between …

… model considered in this paper is an overlaying of femtocells … number of clusters and
rays within each cluster is modeled … Here, the two-tier network based on OFDMA technique …

… the resource management problem of this new type of network… We consider a two-tier
heterogeneous OFDMA network [24], [… network, and multiple small cells (ie pico-, micro-, …

… algorithm for OFDMA-based femtocell HetNets, where they aim … , we study the network EE
for the downlink of a two-tier multi-… clustering, each user will be served by one BS in its cluster, …

… Therefore we need an effective clustering scheme to group devices into multiple clusters, …
two candidate clustering algorithms, formulating the resource sharing problem of one cellular …

… Moreover, in ultra-dense networks, the energy consumed by the … PS resource allocation
scheme in a two-tier heterogeneous … conventional EH-NOMA and EH-OFDMA, respectively. …