Title
Coordinated scheduling and beamforming for multicell spectrum sharing networks using branch & bound.
Abstract
We consider the downlink of a multicell network where neighboring multi-antenna base stations share the spectrum and coordinate their frequency and spatial resource allocation strategies to improve the overall network performance. The objective of the coordination is to maximize the number of users that can be scheduled, meeting their quality-of-service requirements with the minimum total transmit power. The coordinated scheduling and multiuser transmit beamforming problem is combinatorial; we formulate it as a mixed-integer second-order cone program and propose a branch & bound algorithm that yields the optimal solution with relatively low-complexity. The algorithm can be used to motivate or benchmark approximation methods and to numerically evaluate the gains due to spectrum sharing and coordination.
Year
Venue
Keywords
2012
European Signal Processing Conference
integer programming,quality of service,resource allocation,antennas
Field
DocType
ISSN
Beamforming,Mathematical optimization,Branch and bound,Transmitter power output,Scheduling (computing),Computer science,Integer programming,Resource allocation,Network performance,Telecommunications link
Conference
2076-1465
Citations 
PageRank 
References 
6
0.52
6
Authors
3
Name
Order
Citations
PageRank
Lei Yu191.24
Eleftherios Karipidis242934.53
Erik G. Larsson310189605.81