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coaxial, phone line) over which we can achieve multiple parallel high definition video
transmissions through the houses. For each of the physical layers, an optimized set
of parameters will be used, demonstrating the necessity of a powerful optimization
tool for fine tuning the chipset for each application. The powerline use case described
in this chapter is based on a high level description of such new G.hn standard.
In MULTICUBE project, DS2 makes use of a virtual platform that describes at
a high level of abstraction both the hardware and software components of a G.hn
system. This platform, named
STORM
, models such a new system in high level
SystemC-TLM and making use of SCoPE technology for HW/SW integration. In
this model, all the parameters can be configured in order to stress them and find the
most suitable combination.
7.2.1.2
Description of the Use Case
The high level model of an “
ITU G.hn
” system used as test case implements a network
of several powerline nodes connected through a powerline channel. These PLC nodes
include the different layers that are described in the standard, focusing specially on
the MAC layer, where the main design decisions have to be taken.
The model is adapted to the future hardware platform that will be used in the real
platform-based ASIC implementation where an embedded microprocessor will run
a PLC SW stack code that will make use of different hardware resources, accessible
through a bus system. A simplified (with only four nodes) high level view of such a
platform is shown in Fig.
7.2
and can be described as follows:
Ethernet traffic generators & monitors:
These modules generate UDP/TCP
flows that will be injected through the Ethernet port of the corresponding PLC
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Flow
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PIC NODE
SW Subsystem
Application SW
Component
Component Component
Component
Component
Hds
OS model
SCoPE
HW Subsystem
Bus Infrastructure subsystem
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Flow
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HW model
HW model
HW model
HW model
PLC Node
PLC Node
PLC model
Fig. 7.2
PLC system high level description
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