Current Development: Difference between revisions
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* ''status'': Frame aggregation and block ack merged already; others TBD | * ''status'': Frame aggregation and block ack merged already; others TBD | ||
=== Energy Model === | |||
* ''summary'': [http://www.ee.washington.edu/research/nsl/faculty/radha/ Network Security Lab], University of Washington, Seattle has begun work on an generic energy model for ns3. The goal is to simulate an energy source and keep track of energy consumptions of various devices in the node. Current version focuses on radio energy consumption. | * ''summary'': [http://www.ee.washington.edu/research/nsl/faculty/radha/ Network Security Lab], University of Washington, Seattle has begun work on an generic energy model for ns3. The goal is to simulate an energy source and keep track of energy consumptions of various devices in the node. Current version focuses on radio energy consumption. |
Revision as of 19:24, 20 April 2010
Main Page - Roadmap - Summer Projects - Project Ideas - Developer FAQ - Tools - Related Projects
HOWTOs - Installation - Troubleshooting - User FAQ - Samples - Models - Education - Contributed Code - Papers
On this page, we will try to maintain pointers to current ns-3 development work, and post some suggested project ideas. If you are interested in collaborating on one of these projects, please do not hesitate to contact the individuals identified.
Much of the current activity is centered around the current release, which is now ns-3.8 due in April. The release page should list code that is under active review for merging.
If you are new to ns-3 and want to contribute, please read these guidelines: Contributing to ns-3 and review the information on this page below.
Note: Several ns-3 developers hang out on IRC at #ns-3 at irc.freenode.net. A typically active time is around 1500 to 1900 UTC, Mondays through Fridays.
We conduct many of our reviews at http://codereview.appspot.com. The Reviews page links to some of this code that is currently under review (also summarized below).
Ongoing development projects
ns-3 core
Multi-threaded simulation implementation for multicore
- ns-developers post: http://mailman.isi.edu/pipermail/ns-developers/2009-July/006197.html
- code location: http://code.nsnam.org/guillaume/ns-3-multithreading/
- status: ns-3.10 merge?
Synchronized emulation
- code location: None posted yet
- background: http://mailman.isi.edu/pipermail/ns-developers/2009-July/006198.html
- status: contact Elias Weingartner
Device and channel models
Spectrum modeling support
- ns-developers post: original post review request
- code location: corereview mercurial
- status: review requested, merge candidate for ns-3.9
underwater acoustic network device
- code location: http://codereview.appspot.com/87043
- reviewer(s): Craig Dowell, Faker Moatamri, Andrey Mazo
- status: plan to merge in ns-3.8 release cycle
WIFI_PHY_STANDARD_80211p_SCH/CCH
- code location: http://codereview.appspot.com/152058/show
- reviewer(s): Ramon Bauza, Mathieu Lacage
- status: merged to ns-3.7
Vehicular Ad Hoc Networks (VANET)
- code location: http://codereview.appspot.com/179068
- reviewer(s): Mathieu Lacage
- status: waiting for more reviews
Miscellaneous wifi enhancements
- code location: http://codereview.appspot.com/65051
- reviewer(s): Mathieu Lacage
- status: Some of these pieces made it into ns-3.5-- others are pending
- background: http://groups.google.com/group/ns-3-reviews/browse_thread/thread/f0b36d7373421a7d#
Patch to pause and resume an interface
- code location: http://codereview.appspot.com/62054
- reviewer(s): TBD
- status:
802.11 model extensions
There are several efforts ongoing to extend the ns-3 Wifi model.
Harmonization with ns-2 802.11 Ext models
- summary: ns-2.33 added a new 802.11 model with much more detailed channel modeling. An effort has been started to port over reusable components from that implementation to ns-3's wifi model, while reusing already implemented basic components. The goal is a harmonization of the 802.11 models of ns-2 and ns-3. Leading aim is to support research on vehicular networks. Planned near-term features:
- Equalizing PHY models including capture effects, user-definable coding rates (e.g. 5.9 GHz from 802.11p)
- EDCA QoS extensions of 802.11e
- Already finished features:
- Nakagami/Rayleigh propagation loss model
- ns-developers post: http://mailman.isi.edu/pipermail/ns-developers/2008-November/004936.html
- code location: http://idlebox.net/2008/ns-3-wifi/code/ns-3-wifiex/
- status: under current active development. Time frame till this is completed: 4-5 month.
802.11n
- summary: University of Florence (LART lab) has begun work on an 802.11n model for ns3. The main goal is to simulate the frame aggregation feature. In the future, they aim to implement the High Throughput terminal behaviour with MIMO technology. They plan to add, to ns-3's 802.11 model, the following 802.11n features:
- Frame Aggregation
- Block ACK
- HCF (EDCA and support for HCCA)
- TXOP
- HT terminal (also with protection modes)
- MIMO
Also interested to verify the 11n terminal throughput when are associated terminal of a/b/g standards.
- Already finished features (in ns-3.5):
- HCF, TXOP, Frame Aggregation
- Merged for ns-3.8:
- Block ACK
- code location: http://code.nsnam.org/mirko/ns-3-80211n
- status: Frame aggregation and block ack merged already; others TBD
Energy Model
- summary: Network Security Lab, University of Washington, Seattle has begun work on an generic energy model for ns3. The goal is to simulate an energy source and keep track of energy consumptions of various devices in the node. Current version focuses on radio energy consumption.
- wiki page: http://www.nsnam.org/wiki/index.php/NS-3_energy_model
- code location: N/A
- status: Private review.
Wireless Interference (Jamming) Model
- summary: Network Security Lab, University of Washington, Seattle has begun work on a wireless interference (jamming) model for ns3. The goal is to to enable researchers to use ns3 to study jamming and its mitigation methods.
- wiki page: http://www.nsnam.org/wiki/index.php/NS-3_wireless_jamming_model
- code location: N/A
- status: Private review.
Link layer
MPLS
- code location: http://code.google.com/p/ns3-mpls/
- reviewer(s): None
- status: None announced
802.21 media independent handover
- wiki page: http://www.nsnam.org/wiki/index.php/NS-3_MIH_implementation
- code location: http://code.nsnam.org/salumu/ns-3-mih/
- status: Dormant-- no merge plans announced.
Network layer
IPv6 for ns-3
- summary: Ipv6 support for ns-3
- ns-developers post: http://mailman.isi.edu/pipermail/ns-developers/2008-June/004283.html
- code location: hg clone https://svnet.u-strasbg.fr/hg/ns-3-ipv6-2nd/
- status: ns-3.3 contains the first merge (Ipv6Address) of this code. ns-3.7 and ns-3.8 will continue to add features. Here is a tentative roadmap: http://mailman.isi.edu/pipermail/ns-developers/2009-July/006211.html
Application layer
Chord/DHash DHT
- code location: http://code.nsnam.org/gillh/ns-3-chord
- reviewers: (none yet)
- background: http://mailman.isi.edu/pipermail/ns-developers/2009-December/007222.html
Synchronous posix/sockets API
- summary: An ns-3 "process" environment
- ns-developers post: http://mailman.isi.edu/pipermail/ns-developers/2008-April/003912.html
- code location: http://code.nsnam.org/mathieu/ns-3-simu
- status: still in development
real-world application integration
- summary: port of quagga routing to ns-3
- wiki page: http://www.nsnam.org/wiki/index.php/Real_World_Application_Integration
- code location: http://code.nsnam.org/lj/quagga-porting/
- status: Was developed by Liu Jian, Google Summer of Code. Portions of this code are planned for a future release (ns-3.8 or later) when ns-3-simu is merged.
ns-3-simu sockopt patches
- code location: Four patches listed in http://mailman.isi.edu/pipermail/ns-developers/2009-June/006144.html
- reviewer(s): TBD
- status: review requested on June 22
- background: http://mailman.isi.edu/pipermail/ns-developers/2009-June/006144.html
Visualization for ns-3
Jeremy Norman and the iNSpect team have posted some plans for a visualization library for ns-3:
- http://mailman.isi.edu/pipermail/ns-developers/2008-March/003777.html
- http://mailman.isi.edu/pipermail/ns-developers/2008-November/004914.html
Gustavo Carneiro is working on a NS-3 Python visualization tool called NS-3 PyViz.
George Riley has made a prototype animator for PointToPoint links.
Joe Kopena is working on what he calls a "decorator" http://code.nsnam.org/tjkopena/
Hagen Paul Pfeifer is working on a MANET visualizer http://nv.dev.jauu.net/
L2 Ethernet switch module
- ns-developers post: http://groups.google.com/group/ns-3-users/browse_thread/thread/0091ac611dde1928#
- status: No code yet, starting development.
Parallel simulations (2008)
- summary: ns-3 extensions for parallelization
- wiki page: http://www.nsnam.org/wiki/index.php/Parallel_Simulations
- code location: http://code.nsnam.org/pfeifer/ns-3-para/
- status: dormant since 2008 Google Summer of Code
Miscellaneous
Simulation Configuration and State Detection
In order to configure simulations across multiple, probably virtualized, machines a large amount of configuration must be performed in order to construct the component systems. The oppportunity for human error to creep in during this process renders it essentially manually unworkable for all but the simplest topologies. Craig Dowell is thinking about how to address this problem.
Delay Box for ns-3
Matt Crinklaw is working on a port of ns-2 DelayBox to ns-3.
- summary: http://www.isi.edu/nsnam/ns/doc/node247.html (from ns-2 documentation)
- code location: http://freehg.org/u/mlaw
- status: No status update recently. Dormant.
Suggested projects
2010 Google Summer of Code Project Ideas
We have posted some project ideas for Google Summer of Code. However, these ideas are not limited to the Google program.
Path MTU discovery and fragmentation for IPv4 stacks
There is no path MTU discovery implemented for IPv4. This, combined with lack of fragmentation, makes guessing the end-to-end MTU imperative for ns-3 simulations. We would welcome a contribution that introduced path MTU discovery and IPv4 fragmentation to ns-3. Note that there is fragmentation support in the yans simulator that may be of use; contact Mathieu Lacage for more information.
Removing traffic generation from applications class
- summary: Proposed decoupling to generalize applications
- ns-developers post: http://mailman.isi.edu/pipermail/ns-developers/2007-July/003136.html
- code location: http://code.nsnam.org/laprisee/ns-3-mp/
- status: Was under discussion in the summer.