Sequentially Distributed Coalition Formation Game for Throughput Maximization in C-RANs
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Date
2018
Authors
Gbenga-Ilori, A.O.
Sanusi, O.I.
Journal Title
Journal ISSN
Volume Title
Publisher
International Journal of Electronics and Telecommunications
Abstract
Cloud radio access network (C-RAN) has been proposed
as a solution to reducing the huge cost of network upgrade
while providing the spectral and energy efficiency needed for
the new generation cellular networks. In order to reduce the
interference that occur in C-RAN and maximize throughput,
this paper proposes a sequentially distributed coalition formation
(SDCF) game in which players, in this case the remote radio heads
(RRHs), can sequentially join multiple coalitions to maximize
their throughput. Contrary to overlapping coalition formation
(OCF) game where players contribute fractions of their limited
resources to different coalitions, the SDCF game offers better
stability by allowing sequential coalition formation depending on
the availability of resources and therefore providing a balance
between efficient spectrum use and interference management. An
algorithm for the proposed model is developed based on the
merge-only method. The performance of the proposed algorithm
in terms of stability, complexity and convergence to final coalition
structure is also investigated. Simulation results show that the
proposed SDCF game did not only maximize the throughput in
the C-RAN, but it also shows better performances and larger
capabilities to manage interference with increasing number of
RRHs compared to existing methods.
Description
Keywords
Coalition game, C-RAN, SDCF, throughput, interference, wireless networks