TY - JOUR
T1 - Backhaul-Constrained Multicell Cooperation Leveraging Sparsity and Spectral Clustering
AU - Jain, Swayambhoo
AU - Kim, Seung Jun
AU - Giannakis, Georgios B.
N1 - Publisher Copyright:
© 2002-2012 IEEE.
PY - 2016/2
Y1 - 2016/2
N2 - Multicell cooperative processing with limited backhaul traffic is studied for cellular uplinks. Aiming at reduced backhaul overhead, a sparse multicell linear receive-filter design problem is formulated. Both unstructured distributed cooperation and clustered cooperation, in which base station groups are formed for tight cooperation, are considered. Dynamic clustered cooperation, where the sparse equalizer and the cooperation clusters are jointly determined, is solved via alternating minimization based on spectral clustering and group-sparse regression. Furthermore, decentralized implementations of both unstructured and clustered cooperation schemes are developed for scalability, robustness, and computational efficiency. Extensive numerical tests verify the efficacy of the proposed methods.
AB - Multicell cooperative processing with limited backhaul traffic is studied for cellular uplinks. Aiming at reduced backhaul overhead, a sparse multicell linear receive-filter design problem is formulated. Both unstructured distributed cooperation and clustered cooperation, in which base station groups are formed for tight cooperation, are considered. Dynamic clustered cooperation, where the sparse equalizer and the cooperation clusters are jointly determined, is solved via alternating minimization based on spectral clustering and group-sparse regression. Furthermore, decentralized implementations of both unstructured and clustered cooperation schemes are developed for scalability, robustness, and computational efficiency. Extensive numerical tests verify the efficacy of the proposed methods.
KW - Coordinated multi-point
KW - decentralized algorithms
KW - multicell cooperation
KW - sparsity
UR - http://www.scopus.com/inward/record.url?scp=84962177978&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84962177978&partnerID=8YFLogxK
U2 - 10.1109/TWC.2015.2480392
DO - 10.1109/TWC.2015.2480392
M3 - Article
AN - SCOPUS:84962177978
SN - 1536-1276
VL - 15
SP - 899
EP - 912
JO - IEEE Transactions on Wireless Communications
JF - IEEE Transactions on Wireless Communications
IS - 2
M1 - 7273957
ER -