会议专题

A Precoder for Reducing Downlink Interference from Femtocells to Macro Users Based on Cognitive Radio

This paper proposes a preprocessor for femtocell base stations to avoid the downlink interference to the macro users, where both systems are multicarrier systems. By using the concept of cognitive radio, we design a low complexity transmitter including a precoder followed by a power allocation. With the judicious design of the interference tolerant constraints, the performance degradation of the macro user is controlled to be less than a predetermined value. Simulation results show that the spectrum efficiency of the femtocell system with the presented transmitter is improved significantly.

precoding femtocell interference cognitive radio

Xueying Hou Wei Ling Zhikun Xu Chenyang Yang

School of Electronics and Information Engineering, Beihang University, Beijing, P.R.China

国际会议

2010 IEEE 10th International Conference on Signal Processing(第十届信号处理国际会议 ICSP 2010)

北京

英文

1663-1666

2010-08-24(万方平台首次上网日期,不代表论文的发表时间)