TY - GEN
T1 - Coexistence method to mitigate interference from IMT-advanced to fixed satellite service
AU - Jo, Han Shin
AU - Yoon, Hyun Goo
AU - Lim, Jaewoo
AU - Park, Youn Hyun
AU - Yook, Jong Gwan
PY - 2007
Y1 - 2007
N2 - In this paper, we propose an efficient and robust interference mitigation technique based on a nullsteering multiuser multiple-input multiple-output (MU-MIMO) spatial division multiple access (SDMA) scheme for frequency sharing between IMT-Advanced and Fixed Satellite Service (FSS). In the proposed technique, the conventional precoding matrix for SDMA unitary precoded (UPC) MIMO proposed by the authors is modified to construct nulls in the spatial spectrum corresponding to the direction angles of the victim FSS earth station (ES). The frequency sharing results are given in terms of interference power and minimum separation distance in the co-channel. Simulation results shows that our mitigation technique reduces interfering power by about 60dB and can meet the maximum permissible interference power condition in almost separation distances. Therefore it can be concluded that the proposed mitigation technique in this paper is highly efficient in terms of reducing the separation distance as well as robust against DOE estimation errors.
AB - In this paper, we propose an efficient and robust interference mitigation technique based on a nullsteering multiuser multiple-input multiple-output (MU-MIMO) spatial division multiple access (SDMA) scheme for frequency sharing between IMT-Advanced and Fixed Satellite Service (FSS). In the proposed technique, the conventional precoding matrix for SDMA unitary precoded (UPC) MIMO proposed by the authors is modified to construct nulls in the spatial spectrum corresponding to the direction angles of the victim FSS earth station (ES). The frequency sharing results are given in terms of interference power and minimum separation distance in the co-channel. Simulation results shows that our mitigation technique reduces interfering power by about 60dB and can meet the maximum permissible interference power condition in almost separation distances. Therefore it can be concluded that the proposed mitigation technique in this paper is highly efficient in terms of reducing the separation distance as well as robust against DOE estimation errors.
UR - http://www.scopus.com/inward/record.url?scp=48149090033&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=48149090033&partnerID=8YFLogxK
U2 - 10.1109/ECWT.2007.4403970
DO - 10.1109/ECWT.2007.4403970
M3 - Conference contribution
AN - SCOPUS:48149090033
SN - 287487003X
SN - 9782874870033
T3 - European Microwave Week 2007 Conference Proceedings, EuMW 2007 - 10th European Conference on Wireless Technology, ECWT 2007
SP - 158
EP - 161
BT - European Microwave Week 2007 Conference Proceedings, EUMIC 2007 - 10th European Conference on Wireless Technology, ECWT 2007
T2 - European Microwave Week 2007, EuMW 2007 - 10th European Conference on Wireless Technology, ECWT 2007
Y2 - 8 October 2007 through 10 October 2007
ER -