Commit Graph

5 Commits

Author SHA1 Message Date
adamdunkels
5eb4a0fe8d Rewrote the initial link estimate logic: link estimates are now
computed only over the actual samples, not over the entire
buffer. Also, the initial link estimate is much more conservative now
(16 transmissions) to favor links that have been probed, and which
therefore are likely to have better ETXs.
2010-10-11 23:34:02 +00:00
adamdunkels
b23a364397 rtmetric values should always be computed as 16-bit values 2010-10-03 20:06:25 +00:00
adamdunkels
46b2451969 Made the initial link estimate explicit 2010-09-22 22:03:21 +00:00
adamdunkels
591766e663 Significant improvements to the Collect protocol:
* Loop detection and untangling. Now uses in-band loop detection that
  works.

* Link quality estimation. Now starts with a conservative /
  pessimistic estimate for new links.

* Retransmissions. MAC layer and network layer retransmissions are now
  decoupled.

* Loss handling. Deals better with losses now.

* Concurrent applications. Each connection now maintains its own
  neighbor table with separated cost to sink estimates for each
  connection.
2010-09-13 13:28:14 +00:00
adamdunkels
4e0744954a Rewrite of important parts of the Collect logic: link estimation
calculation and parent selection.  This fixes a severe bug that caused
loops when packets were erroneously retransmitted due to ACK loss.
2010-09-08 19:21:45 +00:00