Diamond cellular network — Optimal combination of small power basestations and CoMP cellular networks-

In conventional studies on Coordinated Multi-Point (CoMP) cellular networks, dynamic clustering schemes have been introduced to achieve CoMP gain at all cell edges. However, such schemes increase complexity of the network drastically and are unfeasible in the current network topology. In this paper, small power basestations (BSs) are introduced instead of dynamic clustering to solve cluster edge problem in CoMP cellular networks. This new cell topology is called diamond cellular network since the created cell structure is similar with diamond pattern. We derive optimal locations of small power basestations and optimal resource allocation between the CoMP basestation and small power basestations for the diamond cellular network. By using the proposed architecture, more than 250% improvement of 5% outage throughput is achieved compared with conventional single cell networks.