TY - GEN
T1 - Hierarchical interference alignment for heterogeneous networks with multiple antennas
AU - Shin, Wonjae
AU - Lee, Namyoon
AU - Noh, Wonjong
AU - Choi, Hyun Ho
AU - Clerckx, Bruno
AU - Shin, Changyong
AU - Jang, Kyunghun
PY - 2011
Y1 - 2011
N2 - In this paper, we investigate an interference management scheme relying on multiple antennas in heterogeneous networks with a mixed macro and pico deployment. Our main contribution is to propose a new interference alignment scheme for the heterogenous network. Specifically, our scheme successively creates transmit beamforming vectors for the pico base stations (BSs) and for the macro base station (BS) using the fact that the macro BS and pico BSs have different number of transmit antennas and different number of supporting users per base stations in heterogeneous networks. We call this scheme Hierarchical Interference Alignment (HIA). The simulations demonstrate that the proposed HIA scheme provides additional degrees of freedom compared to the conventional interference coordination schemes such as time division resource partitioning.
AB - In this paper, we investigate an interference management scheme relying on multiple antennas in heterogeneous networks with a mixed macro and pico deployment. Our main contribution is to propose a new interference alignment scheme for the heterogenous network. Specifically, our scheme successively creates transmit beamforming vectors for the pico base stations (BSs) and for the macro base station (BS) using the fact that the macro BS and pico BSs have different number of transmit antennas and different number of supporting users per base stations in heterogeneous networks. We call this scheme Hierarchical Interference Alignment (HIA). The simulations demonstrate that the proposed HIA scheme provides additional degrees of freedom compared to the conventional interference coordination schemes such as time division resource partitioning.
KW - Heterogeneous Networks
KW - Interference Alignment
KW - Interference Management
UR - http://www.scopus.com/inward/record.url?scp=80051980172&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80051980172&partnerID=8YFLogxK
U2 - 10.1109/iccw.2011.5963547
DO - 10.1109/iccw.2011.5963547
M3 - Conference contribution
AN - SCOPUS:80051980172
SN - 9781612849553
T3 - IEEE International Conference on Communications
BT - 2011 IEEE International Conference on Communications Workshops, ICC 2011 Workshops
T2 - 2011 IEEE International Conference on Communications Workshops, ICC 2011 Workshops
Y2 - 5 June 2011 through 9 June 2011
ER -