【資料名稱】：Downlink Packet Scheduling in LTE Cellular Networks Key Desi

【資料作者】：2014

【資料日期】：2014

【資料語言】：英文

【資料格式】：PDF

【資料目錄和簡介】：

Future generation cellular networks are expected to
provide ubiquitous broadband access to a continuously growing
number of mobile users. In this context, LTE systems represent
an important milestone towards the so called 4G cellular
networks. A key feature of LTE is the adoption of advanced
Radio Resource Management procedures in order to increase the
system performance up to the Shannon limit. Packet scheduling
mechanisms, in particular, play a fundamental role, because they
are responsible for choosing, with fine time and frequency resolutions,
how to distribute radio resources among different stations,
taking into account channel condition and QoS requirements.
This goal should be accomplished by providing, at the same time,
an optimal trade-off between spectral efficiency and fairness. In
this context, this paper provides an overview on the key issues
that arise in the design of a resource allocation algorithm for LTE
networks. It is intended for a wide range of readers as it covers
the topic from basics to advanced aspects. The downlink channel
under frequency division duplex configuration is considered as
object of our study, but most of the considerations are valid
for other configurations as well. Moreover, a survey on the
most recent techniques is reported, including a classification of
the different approaches presented in literature. Performance
comparisons of the most well-known schemes, with particular
focus on QoS provisioning capabilities, are also provided for
complementing the described concepts. Thus, this survey would
be useful for readers interested in learning the basic concepts
before going into the details of a particular scheduling strategy,
as well as for researchers aiming at deepening more specific
aspects.