… deployment of femtocells makes radio resource management (… a reduction in throughput
as femtocell density increases. This is … sharing in two-tier cognitive femto networks. In: IEEE …

… two-tier OFDMA-based heterogeneous macro-femto network, a subchannel and PA problem
for co-channel femtocells … studied a cluster-based RA problem in a two-tier downlink HetNet …

… A two-tier multi-user CRN was introduced in which SUs were … allocation was presented in
OFDM-based cognitive femtocell … It is worth to note that in our network cluster size is equal so …

… 3Without loss of generality, the selection of a two-tier network … division multiple access (OFDMA)
transmission. However, we … of cooperating SBSs consisting the cluster, we assume that it …

… orthogonal frequency division multiple access (OFDMA) [10]. … for non-orthogonal resource
allocation. This chapter discusses … Therefore, this work considers a high D2D tier density, as …

… enhance the throughput in a two-tier HetNets. Nonetheless, it … The picocells were clustered
into groups and a coordinator was … coordination in OFDMA/LTE heterogeneous networks. …

… this paper proposes a power allocation method for femtocells deployed in macrocells areas
(… Clustering and resource allocation for dense femtocells in a two-tier cellular OFDMA network…

… -cells, and femto-cells) of denser but lower power consumption. … This two-tier architecture
has consisted of microwave macro-… clustering is the building block for resource management in …

… allocation approach in two-tier networks. Each femtocell accesses a random subset of reserved
resources to … on dynamic clustering combined with channel-aware resource allocation for …

… In this work, a two-tier heterogeneous UDN based on C-RAN and multi-… resource allocation
for OFDMA femtocell networks[C]//2013 IEEE Wireless Communications and Networking …