Abstract
This paper addresses the important issue of how to optimize the performance
of the current mobile backhaul Radio Access Network (RAN) infrastructure to
cope with the growing and dynamic nature of the emerging data-centric mobile
multimedia traffic and services. Specifically, this work proposes and devises
a simple and cost-effective EPON-based dynamic multiservice RAN architecture
that efficiently transports and supports a wide range of existing and emerging
data-centric mobile multimedia traffic and services along with the diverse
quality of service (QoS) and rate requirements set by these services. To conform
to the emerging Fourth-Generation (4G) Long-Term Evolution (LTE) standards,
the proposed centralized packet-based RAN architecture is further evolved
to a distributed architecture. The performance of the distributed packet-based
RAN architecture is then examined and compared with that of the centralized
one. In general, the simulation results indicate that packet-based RAN architectures
are far better suited for coping with the dynamic and bursty traffic pattern
of the emerging data-centric mobile multimedia services along with the diverse
QoS and rate requirements set by these services.
© 2009 IEEE
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