--- a/CHANGES.html Mon Feb 02 16:18:19 2015 -0800
+++ b/CHANGES.html Mon Feb 02 21:06:56 2015 -0800
@@ -54,6 +54,14 @@
<h1>Changes from ns-3.21 to ns-3.22</h1>
<h2>New API:</h2>
<ul>
+ <li> New classes were added for the PARF and APARF WiFi rate controls.
+ </li>
+ <li> Support for WiFi 802.11n MPDU aggregation has been added.
+ </li>
+ <li> Support for modeling of vehicular WiFi networks (IEEE 1609.4) has been added. In addition, a basic safety message (BSM) application traffic generator and related statistics-gathering classes have been added to the wave module.
+ </li>
+ <li> A complete LTE release bearer procedure is now implemented which can be invoked by calling the new helper method LteHelper::DeActivateDedicatedEpsBearer ().
+ </li>
<li> It is now possible to print the Neighbor Cache (ARP and NDISC) by using
the RoutingProtocolHelper
</li>
@@ -61,6 +69,9 @@
the stats module, enabling TracedValues emitting values of type
ns3::Time to be handled by the framework.
</li>
+ <li> A new attribute 'ClockGranularity' was added to the TcpSocketBase class,
+to control modeling of RTO calculation.
+ </li>
</ul>
<h2>Changes to existing API:</h2>
@@ -83,6 +94,13 @@
are similarly documented we have deprecated the three
argument version of AddTraceSource.
</li>
+ <li> The "MinRTO" attribute of the RttEstimator class was moved to the TcpSocketBase class. The "Gain" attribute of the RttMeanDeviation class was replaced
+by new "Alpha" and "Beta" attributes.
+ </li>
+ <li> Attributes of the TcpTxBuffer and TcpRxBuffer class are now accessible through the TcpSocketBase class.
+ </li>
+ <li> The LrWpanHelper class has a new constructor allowing users to configure a MultiModelSpectrumChannel as an option, and also provides Set/Get API to allow users to access the underlying channel object.
+ </li>
</ul>
<h2>Changes to build system:</h2>
@@ -92,9 +110,12 @@
</ul>
<h2>Changed behavior:</h2>
+This section is for behavioral changes to the models that were not due to a bug fix.
<ul>
<li> The default value of the `Speed` attribute of ConstantSpeedPropagationDelayModel was changed from 300,000,000 m/s to 299,792,458 m/s (speed of light in a vacuum), causing propagation delays using this model to vary slightly.
</li>
+ <li> The LrWpanHelper object was previously instantiating only a LogDistancePropagationLossModel on a SingleModelSpectrumChannel, but no PropagationDelayModel. The constructor now adds by default a ConstantSpeedPropagationDelayModel.
+ </li>
</ul>
<hr>
--- a/RELEASE_NOTES Mon Feb 02 16:18:19 2015 -0800
+++ b/RELEASE_NOTES Mon Feb 02 21:06:56 2015 -0800
@@ -21,29 +21,37 @@
New user-visible features
-------------------------
-- It is now possible to print the Neighbor Cache (ARP and NDISC) by using
- the RoutingProtocolHelper
-- The PrintRoutingTable... and PrintNeighborCache... are now static funtions
- i.e., it's not anymore needed to instantiate an helper just to use them.
-- A new TimeProbe class has been added to hook the data collection framework
- to traced values emitting Time objects
-- In previous releases of the LTE module, the bearer release
+- (wifi) Support for MPDU aggregation has been added to the wifi model,
+ as well as a number of related example programs.
+- (wifi) PARF and APARF WiFi rate controls have been added to the wifi model.
+- (lte) In previous releases of the LTE module, the bearer release
functionality was only partially supported. As an enhancement, a
complete release bearer procedure is now implemented, which can be
invoked by calling the new helper method
LteHelper::DeActivateDedicatedEpsBearer(). The related output can be
seen through the stats collected at different layers like PDCP, RLC,
- MAC, PHY. To support this implementation, example and test suite is
+ MAC, PHY. To support this implementation, an example and test suite is
added within the LTE module examples and tests folder.
-
+- (wave) Support for WiFi-based vehicular communications using the
+ IEEE 1609.4 framework has been added. A Basic Safety Message (BSM)
+ application packet generator, and associated statistics counters, has
+ been added. A comprehensive VANET routing example has been added.
+- (internet) It is now possible to print the Neighbor Cache (ARP and NDISC)
+ by using the RoutingProtocolHelper
+- (stats) A new TimeProbe class has been added to hook the data collection
+ framework to traced values emitting Time objects
+- (documentation) the callback function signatures for all TraceSources
+ is documented in Doxygen
Bugs fixed
----------
- Bug 1405 - RttEstimator improvements
- Bug 1551 - NS_LOG_COMPONENT_DEFINE inside or outside of ns3 namespace?
- Bug 1726 - WiFi Minstrel rate control algorithm doesn't save state
+- Bug 1734 - TcpSocketBase produces spurious delayed ACKs
- Bug 1758 - Yans and Nist error rate models for 5/6 code rate 802.11n HT
- Bug 1770 - mesh test and example crash for 32-bit optimized builds
+- Bug 1774 - compute signal power around channel, not across whole band, and fix LrWpanHelper to add a default PropagationDelayModel
- Bug 1791 - TCP Endpoint never deallocates when closing
- Bug 1801 - Setting Wi-Fi timing parameters through WifiMac attributes (documentation fix)
- Bug 1906 - 802.11n PHY configuration for 2.4GHz and 5GHz devices
@@ -55,6 +63,7 @@
- Bug 1983 - FlowMonitor returns containers copies instead of references.
- Bug 1986 - test result divergence for lte-frequency-reuse test
- Bug 1991 - PcapFileWrapper::CaptureSize attribute (snaplen) has no effect.
+- Bug 1995 - avoid multiple definitions of PI
- Bug 1996 - RSRQ calculation: misleading variable names
- Bug 1997 - Fix PlotProbe() documentation and usage for GnuplotHelper and FileHelper
- Bug 2002 - Hardcoded include paths cause breakage
@@ -69,10 +78,11 @@
- Bug 2030 - provide default values for WifiTxVector
- Bug 2037 - HT capabilities may print bogus chars
- Bug 2038 - Stop method does not stop next wave in WaveformGenerator
-- Bug 2042 - src/lte/model/a3-rsrp-handover-algorithm.cc:137:79: error: overflow in implicit constant conversion
-- Bug 2043 - print-introspected-doxygen crashes when some modules are disabled default tip
+- Bug 2042 - LTE a3-rsrp-handover-algorithm.cc: error: overflow in implicit constant conversion
+- Bug 2043 - print-introspected-doxygen crashes when some modules are disabled
- Bug 2044 - Buffer::Iterator::ReadNtohU16() and ReadNtohU32() not implemented correctly
- Bug 2045 - Missing NS_OBJECT_ENSURE_REGISTERED in TcpTxBuffer and TcpRxBuffer
+- Bug 2046 - set Block Ack timeout when SetStandard is called
- Bug 2047 - Ipv6EndPointDemux::Lookup may crash
- Bug 2049 - CQI feedback should always use the same calculation method
- Bug 2053 - In tcp-socket-base.cc, NotifyDataSent incorrectly called with retransmits
@@ -80,6 +90,8 @@
Known issues
------------
+In general, known issues are tracked on the project tracker available
+at http://www.nsnam.org/bugzilla/
Release 3.21
============