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[doc] backup-redmine/2017-07-13, master: doc: batman-adv/Multicast-ideas (1dbd5fed)
by postmaster＠open-mesh.org 14 Jul '17

14 Jul '17

Repository : ssh://git@open-mesh.org/doc On branches: backup-redmine/2017-07-13,master >--------------------------------------------------------------- commit 1dbd5fed632a08fd333947b69ca4ea47f2e68c6c Author: Simon Wunderlich <sw(a)simonwunderlich.de> Date: Tue Oct 18 01:18:29 2011 +0000 doc: batman-adv/Multicast-ideas >--------------------------------------------------------------- 1dbd5fed632a08fd333947b69ca4ea47f2e68c6c batman-adv/Multicast-ideas.textile | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/batman-adv/Multicast-ideas.textile b/batman-adv/Multicast-ideas.textile index 814abc06..56a96653 100644 --- a/batman-adv/Multicast-ideas.textile +++ b/batman-adv/Multicast-ideas.textile @@ -11,7 +11,8 @@ Current status: * we have a half-finished implementation which should fix these limitations in T_X's repository More Info: - * "Batman-adv multicast optimization (video)":http://downloads.open-mesh.org/batman/misc/wbmv4-multicast.avi - how batman-adv optimizes multicast traffic by Linus and Simon [March 2011], slides are attached at the end of this document + + * "Batman-adv multicast optimization (video)":http://downloads.open-mesh.org/batman/misc/wbmv4-multicast.avi - how batman-adv optimizes multicast traffic by Linus and Simon [March 2011], slides are attached at the end of this document * The specification for the 2010.2.0 version is attached as well ---

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[doc] backup-redmine/2017-07-13, master: doc: batman-adv/NetworkCoding-technical (aaaf231c)
by postmaster＠open-mesh.org 14 Jul '17

14 Jul '17

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[doc] backup-redmine/2017-07-13, master: doc: batman-adv/NetworkCoding-technical (c6919411)
by postmaster＠open-mesh.org 14 Jul '17

14 Jul '17

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[doc] backup-redmine/2017-07-13, master: doc: batman-adv/NetworkCoding-technical (68886ce5)
by postmaster＠open-mesh.org 14 Jul '17

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[doc] backup-redmine/2017-07-13, master: doc: attachments/batman-multi-spec.pdf (82a88fa3)
by postmaster＠open-mesh.org 14 Jul '17

14 Jul '17

Repository : ssh://git@open-mesh.org/doc On branches: backup-redmine/2017-07-13,master >--------------------------------------------------------------- commit 82a88fa3d45515a753d88a704f2d4b7ec29f39e1 Author: Sven Eckelmann <sven(a)narfation.org> Date: Tue Oct 18 09:50:17 2011 +0000 doc: attachments/batman-multi-spec.pdf >--------------------------------------------------------------- 82a88fa3d45515a753d88a704f2d4b7ec29f39e1 attachments/batman-multi-spec.pdf | Bin 0 -> 521206 bytes 1 file changed, 0 insertions(+), 0 deletions(-) diff --git a/attachments/batman-multi-spec.pdf b/attachments/batman-multi-spec.pdf new file mode 100644 index 00000000..8add996c Binary files /dev/null and b/attachments/batman-multi-spec.pdf differ

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[doc] backup-redmine/2017-07-13, master: doc: batman-adv/NetworkCoding-technical (9fe1eae8)
by postmaster＠open-mesh.org 14 Jul '17

14 Jul '17

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[doc] backup-redmine/2017-07-13, master: doc: batman-adv/NetworkCoding-technical (de0d6faf)
by postmaster＠open-mesh.org 14 Jul '17

14 Jul '17

Repository : ssh://git@open-mesh.org/doc On branches: backup-redmine/2017-07-13,master >--------------------------------------------------------------- commit de0d6faf991e8dbbce6a81107f636b48c4fded3b Author: Martin Hundebøll <martin(a)hundeboll.net> Date: Thu Oct 13 17:44:53 2011 +0000 doc: batman-adv/NetworkCoding-technical >--------------------------------------------------------------- de0d6faf991e8dbbce6a81107f636b48c4fded3b batman-adv/NetworkCoding-technical.textile | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/batman-adv/NetworkCoding-technical.textile b/batman-adv/NetworkCoding-technical.textile index 8be126e3..0839a056 100644 --- a/batman-adv/NetworkCoding-technical.textile +++ b/batman-adv/NetworkCoding-technical.textile @@ -5,3 +5,30 @@ When forwarding packets in a wireless mesh network, airtime can be saved by expl <pre> (p1 XOR p2) XOR p2 = p1 </pre> + +For more information about the concept, read the news item about [[open-mesh:2011-08-18-network-coding-first-steps|Batman and Catwoman]]. + +h2. Current State + +The current code is available in out "git repository":http://git.open-mesh.org/?p=hundeboll/catwoman.git (the "catwoman" branch) and supports the following features: +* Discover coding neighbors (one-hop neighbors that overhear each other). +* Code packets when both destinations has the information needed to decode. +* Decode coded packets. +* Recode decoded packets only when the destination(s) has the decoded packet (not always the case). + +Catwoman is configured with the files in /sys/devices/virtual/net/bat0/mesh/catwoman{|_hold|purge}. To collect information about the processed packets, read /sys/kernel/debug/batman_adv/bat0/coding_stats + +h2. Required Work + +To make the implementation of catwoman complete, the following features must be implemented: +* Remove outdated nodes from the list of coding neighbors periodically. +* Support fragmented unicast packets. +* Use the link quality of overhearing links when looking for coding opportunities. +* Support configuration with batctl. +* Use bat_dbg instead of printk. + +h2. Ideas + +* Send coded packets containing redundant packets to improve reliability. +* Support the cross topology where more than two destinations are coded. +* ... \ No newline at end of file

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[doc] backup-redmine/2017-07-13, master: doc: batman-adv/NetworkCoding-technical (e47e22ca)
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[doc] backup-redmine/2017-07-13, master: doc: batman-adv/NetworkCoding-technical (e703227c)
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[doc] backup-redmine/2017-07-13, master: doc: batman-adv/NetworkCoding-technical (3c6bcc00)
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commits July 2017