From 580f44e8fd1d8e508e282bf0b5960f98d70ad50a Mon Sep 17 00:00:00 2001 From: Nicola Baldo Date: Sun, 11 Dec 2011 13:50:30 +0100 Subject: [PATCH] revised EPC profiling docs --- src/lte/doc/source/conf.py | 3 +-- src/lte/doc/source/lte-profiling.rst | 5 +++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/src/lte/doc/source/conf.py b/src/lte/doc/source/conf.py index 7a4f74148..9f2251a99 100644 --- a/src/lte/doc/source/conf.py +++ b/src/lte/doc/source/conf.py @@ -25,8 +25,7 @@ import sys, os # Add any Sphinx extension module names here, as strings. They can be extensions # coming with Sphinx (named 'sphinx.ext.*') or your custom ones. -extensions = ['sphinx.ext.pngmath', - 'sphinxcontrib.seqdiag'] +extensions = ['sphinx.ext.pngmath'] # Add any paths that contain templates here, relative to this directory. templates_path = ['_templates'] diff --git a/src/lte/doc/source/lte-profiling.rst b/src/lte/doc/source/lte-profiling.rst index 05ed5a039..6bfaa5427 100644 --- a/src/lte/doc/source/lte-profiling.rst +++ b/src/lte/doc/source/lte-profiling.rst @@ -166,7 +166,7 @@ Running time evolution is quadratic since we increase at the same time the numbe Running time -As a rough complexity estimation, we compare two scenarios using the simplified E-UTRAN version (PHY+MAC) against the complete E-UTRAN + EPC, with same number of UEs per eNodeB, same number of eNodeBs and roughly same volume of transmitted data. +To estimate the additional complexity of the upper LTE Radio Protocol Stack model and the EPC model, we compare two scenarios using the simplified E-UTRAN version (using only PHY, MAC and the simplified RLC/SM, with no EPC and no ns-3 applications) against the complete E-UTRAN + EPC (with UM RLC, PDCP, end-to-end IP networking and regular ns-3 applications). Both configuration have been tested with the same number of UEs per eNodeB, the same number of eNodeBs, and approximately the same volume of transmitted data (an exact match was not possible due to the different ways in which packets are generated in the two configurations). .. _fig-epcEutranRunTime: @@ -176,7 +176,8 @@ As a rough complexity estimation, we compare two scenarios using the simplified EPC E-UTRAN running time -Figures for the complete system are more or less doubling the previous one, but considering the overhead of all the logic and entities incorporated this order of increment is to be expected. +From the figure, it is evident that the additional complexity of using the upper LTE stack plus the EPC model translates approximately into a doubling of the execution time of the simulations. We believe that, considered all the new features that have been added, this figure is acceptable. + Simulation time ---------------