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This SpringerBrief provides state-of-the-art technical reviews on
self-organizing and optimization in 5G systems. It covers the
latest research results from physical-layer channel modeling to
software defined network (SDN) architecture. This book focuses on
the cutting-edge wireless technologies such as heterogeneous
networks (HetNets), self-organizing network (SON), smart low power
node (LPN), 3D-MIMO, and more. It will help researchers from both
the academic and industrial worlds to better understand the
technical momentum of 5G key technologies.
Video multicasting over Wireless Ad hoc Networks (WAHNs) is
bandwidth-efficient compared to multiple unicast sessions. However,
video multicasting poses great challenges over WAHNs. One main
challenge of video multicasting in WAHNs for heterogeneous
destinations is the assignment of Video Descriptions (VDs) and the
construction of multicast tree. However, the assignment of VDs and
the construction of multicast tree can greatly affect user
satisfaction (i.e., affect the quality of the received video). In
this book, we introduce novel approaches to improve the user
satisfaction for a set of heterogeneous multicast destinations. The
main idea of our approaches is to employ the
independent-description property of Multiple Description Coding
(MDC) along with multiple multicast trees. However, many questions
are raised: How multiple multicast trees should be constructed? How
VDs should be assigned? Is it better to construct multiple
multicast trees first and then assign the VDs? Or is it better to
assign the VDs first and we then construct multiple multicast
trees? Should we perform that in a distributed manner or in a
centralized manner?
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