Analysis on the effect of transmission power applied to small cells in LTE-advanced downlink

A Cooperative Resource Allocation Scheme Based on Self-Organized Network in Ultra-Dense Small Cell Deployment

“…However, these techniques enhance the network performance at the cost of excessive energy consumption in practical terms. As it has been already raised by reference [6], energy efficiency ratio degradation is significant if excessive transmission power is applied to Small Cells. Therefore, cooperative resource allocation scheme has gained increasing attention within the mobile networking industry.…”

Codebook design for uplink of densely small cells

“…Recently, densely small cell (DSC), as a means to provide a cost-and energy-efficient solution to cope with the tremen dous growth in data traffic, has attracted a strong interest from cellular network operators [1,2]. Cell-size reduction is well known as the simplest and most effective way to achieve a massive increase in capacity, especially the ex tension of the frequency bands used for a cellular system is quite cost-prohibitive [3,4]. Based on this idea, DSC is served by multiple low power nodes without macro base stations, and targets a coverage radius of only 50-150 m and radiates at low power of 0.1 W to 10 W. An example of low power nodes is Micros, Picos, Femtos and remote radio heads (RRHs) with optical fiber connection referring to micro base stations (MBSs) [5].…”