TY - GEN
T1 - Joint transceiver design and base station clustering for heterogeneous networks
AU - Hong, Mingyi
AU - Razaviyayn, Meisam
AU - Sun, Ruoyu
AU - Luo, Zhi-Quan
PY - 2012/12/1
Y1 - 2012/12/1
N2 - In this work, we consider the problem of partial cooperative transmission in a heterogeneous network with densely deployed base stations. The objective is to design downlink transmit strategies in a way that optimizes the system spectrum efficiency while using small size base station clusters for partial cooperative joint transmission. We propose a sparse optimization approach for this problem, by utilizing the fact that having small cluster sizes is equivalent to imposing a certain group sparsity structure on the precoders of the base stations. Specifically, our formulation is based on the maximization of a penalized system utility function, with the penalization term chosen to induce the desired sparsity pattern. We then propose two algorithms to solve this problem and demonstrate their effectiveness via numerical experiments.
AB - In this work, we consider the problem of partial cooperative transmission in a heterogeneous network with densely deployed base stations. The objective is to design downlink transmit strategies in a way that optimizes the system spectrum efficiency while using small size base station clusters for partial cooperative joint transmission. We propose a sparse optimization approach for this problem, by utilizing the fact that having small cluster sizes is equivalent to imposing a certain group sparsity structure on the precoders of the base stations. Specifically, our formulation is based on the maximization of a penalized system utility function, with the penalization term chosen to induce the desired sparsity pattern. We then propose two algorithms to solve this problem and demonstrate their effectiveness via numerical experiments.
UR - http://www.scopus.com/inward/record.url?scp=84876264418&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84876264418&partnerID=8YFLogxK
U2 - 10.1109/ACSSC.2012.6489071
DO - 10.1109/ACSSC.2012.6489071
M3 - Conference contribution
AN - SCOPUS:84876264418
SN - 9781467350518
T3 - Conference Record - Asilomar Conference on Signals, Systems and Computers
SP - 574
EP - 578
BT - Conference Record of the 46th Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2012
T2 - 46th Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2012
Y2 - 4 November 2012 through 7 November 2012
ER -