1. Interference mitigation in heterogeneous networks with simple dirty paper coding
- Author
-
Krishna Balachandran, Kiran M. Rege, Kemal M. Karakayali, and Joseph H. Kang
- Subjects
Scheme (programming language) ,SIMPLE (military communications protocol) ,Computer Networks and Communications ,Computer science ,Frequency band ,Distributed computing ,020206 networking & telecommunications ,020302 automobile design & engineering ,02 engineering and technology ,Interference (wave propagation) ,0203 mechanical engineering ,0202 electrical engineering, electronic engineering, information engineering ,Dirty paper coding ,Electrical and Electronic Engineering ,computer ,Heterogeneous network ,Information Systems ,computer.programming_language - Abstract
In heterogeneous networks where macro cells and metro cells use the same frequency band to communicate with their respective users, the major problem limiting performance is the interference caused by macro cells to metro cells. The information theoretic result known as dirty paper coding provides a way to address this problem and significantly improve the performance of heterogeneous networks with co-channel deployment. In this paper, we show how a simple dirty paper coding scheme employing Tomlinson-Harashima pre-coding with partial interference pre-subtraction can be employed by metro cells to mitigate the interference caused by macro cells. A performance study included in this paper shows that the proposed dirty paper coding scheme can lead to significant improvement in user rate statistics.
- Published
- 2019