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User-centric Pre-selection and Scheduling
for Coordinated Multipoint Systems.
Annika Klockar
, Karlstad University,
Mikael Sternad
, Uppsala University
Anna Brunström
, Karlstad University, and
Rikke Apelfröjd
, Uppsala University.
International Symposium on Wireless Communication
Systems (ISWCS) 2014, Barcelona, August 26-29 2014.
© 2014 IEEE
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Abstract:
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The data traffic volumes are constantly increasing
in cellular networks. Furthermore, a larger part of the traffic
is generated by applications that require high data rates. Techniques
including Coordinated Multipoint transmission (CoMP)
can increase the data rates, but at the cost of a high overhead.
The overhead is reduced if only a subset of the users are served
with CoMP. In this paper, we propose a user selection approach,
including pre-selection of CoMP users and scheduling, that takes
user requirements into account, and uses the fact that some
users have high requirements and others have lower.
Users that
require a higher data rate to reach an acceptable level of service
satisfaction are selected to use coherent joint processing CoMP
in some of their downlink transmission bandwidth.
Simulation
results show that the number of satisfied users and fairness are
improved with the proposed user selection as compared to user
selection that does not consider individual user requirements.
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Related publications:
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Utility as selection criterion in CoMP,
IEEE PIMRC, London, 2013.
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EURASIP JWCN 2014:
Design and measurement based evaluation of coherent JT CoMP -
A study of precoding, user grouping and resource
allocation using predicted CSI.
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Robust linear precoder for Coordinated Multipoint
Joint Transmission under limited backhaul
with imperfect channel state information.
(IEEE ISWCS 2014).
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PhD Thesis of Rikke Apelfröjd, April 2018.
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Utility of Joint Processing Schemes, ISWCS 2010.
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Source:
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