A downlink interference coordination algorithm to suppress interferences from macro base station

作者：Li Yuan^*; Peng Mu Gen

来源：Journal of Beijing University of Posts and Telecommunications, 2012, 35(6): 74-77+82.

• Coordinated multi points
• Downlink interferences
• High signal-to-noise ratio
• High transmission
• Macro cells
• Nulling
• Pico-cell
• Selection algorithm
• Spectrum efficiency
• User selection

In heterogeneous networks where the Macro cell is overlaid by Pico cells, severe downlink interference is suffered by Pico users from the Macro base station of high transmission power. A beam nulling-user selection algorithm is proposed to suppress the interference from the Macro station and therefore enhance the system spectrum efficiency. The interference to Pico users is modeled and analyzed in a mathematical way. Simulation is performed to evaluate the enhancement of the proposed algorithm. It is shown that the performance is significantly improved in case of the high signal-to-noise ratio region or large number of Pico cells.

• 出版日期2012
• 单位北京大学