Research Article
On TDD cross-tier in-band interference mitigation: a practical example
@INPROCEEDINGS{10.4108/icst.crowncom.2012.248599, author={Michal Cierny and Risto Wichman and Jyri H\aa{}m\aa{}l\aa{}inen and Cassio Ribeiro and Zhi Ding and Xin Liu}, title={On TDD cross-tier in-band interference mitigation: a practical example}, proceedings={7th International Conference on Cognitive Radio Oriented Wireless Networks}, publisher={IEEE}, proceedings_a={CROWNCOM}, year={2012}, month={7}, keywords={heterogeneous networks femtocell macrocell power control}, doi={10.4108/icst.crowncom.2012.248599} }- Michal Cierny
Risto Wichman
Jyri Hämäläinen
Cassio Ribeiro
Zhi Ding
Xin Liu
Year: 2012
On TDD cross-tier in-band interference mitigation: a practical example
CROWNCOM
IEEE
DOI: 10.4108/icst.crowncom.2012.248599
Abstract
This work considers in-band interference that appears in two-tier macro/femto cellular networks when macrocells and femtocells operate on the same frequency band. We focus on the time division duplex (TDD) mode where uplink-downlink nterference occurs if time sharing between uplink and downlink are different in the overlaying macrocell and underlying femtocells. We derive an optimal power control based solution for a simple example scenario and then propose an extension for general multicell/multilink network. Finally, we show through simulations that the proposed solution can be used to mitigate the outage in the femtocell uplink without harming the macrocell layer.
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