adamdunkels
6897270289
Bugfix to the Contiki LPP encounter timing code: encounters are now
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properly timed.
2009-12-06 13:18:32 +00:00
adamdunkels
5aab2eb77d
A simple addition with significant performance implications:
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sicslowpan tags TCP packets with the PACKETBUF_ATTR_PACKET_TYPE_STREAM
flag, which makes the underlying power-saving MAC layer keep the radio
on for some time after transmitting the packet. This allows reply
packets to be processed directly, significantly increasing TCP latency
and throughput.
2009-11-02 11:58:56 +00:00
nifi
ae226c5917
* Set sender and receiver packet attributes on incoming packets
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* Added link layer destination check
2009-10-19 11:25:54 +00:00
adamdunkels
2181e90f69
Added the possibility to switch lpp off. Fixed sdcc compiler issue
2009-09-09 21:09:23 +00:00
nvt-se
4d21a3e203
Don't assume that radio->send turns on the radio automatically.
2009-09-04 10:59:30 +00:00
nifi
912aba7280
added init function in MAC driver for easier configuration
2009-06-22 11:14:11 +00:00
adamdunkels
fe5a1f1068
Added an optimization option that avoids multiple simultaneous broadcasts from neighbors: when a broadcast is to be sent, a sender does not send until it knows that no other nodes are broadcasting.
2009-05-10 21:09:05 +00:00
adamdunkels
0adceb63b4
Code cleanup; made encounter optimization explicit; added optimization for adaptive off-time, but it currently seems to work bad with broadcasts
2009-05-06 15:06:38 +00:00
nvt-se
03cd533712
made LISTEN_TIME and OFF_TIME configurable.
2009-04-07 11:29:08 +00:00
adamdunkels
5e456aea7d
Added optimization for sending ACKs immediately. Turned optimizations on. Increased listening time to 1/64 s again due to problems with broadcasts with the 1/128 s setting
2009-04-06 22:50:35 +00:00
adamdunkels
ed1e945e66
Added guard code so that OFF_TIME is never zero
2009-04-03 20:08:05 +00:00
adamdunkels
8dbd2b2337
Significant power consumption optimization: LPP now keeps track of encounters with neighbors and uses this information to keep the radio switched off longer.
2009-04-03 19:59:22 +00:00
adamdunkels
1d86b01bfb
Made optimizations explicit (and configurable). Added missing initialization of dutycycle protothread. Reduced default listen time and off time.
2009-04-03 11:45:06 +00:00
adamdunkels
04101aae36
Fixed alignment problem on the MSP430, where the LPP header may be misaligned
2009-03-31 17:39:54 +00:00
nvt-se
e2cc8b2a3e
send all queued packet once we have the chance.
2009-03-31 14:44:13 +00:00
nvt-se
1d47e2a8da
send immediate probes only if the packet is directed to us.
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sleep for OFF_TIME if the queue is empty.
restrict double packet lifetime timeouts to unicast packets.
stop ctimer in remove_queued_packet in case the function is not called
via the ctimer callback. it could overwrite a valid packet otherwise.
2009-03-31 14:11:25 +00:00
nvt-se
dd082f7fcf
improvements to lpp based on code from Adam and discussions with Thiemo.
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* queue multiple packets
* send a strobe back immediately after receiving a data packet
* double the packet lifetime to allow for a missed probe
2009-03-31 12:47:00 +00:00
nvt-se
d8caaca289
listen time and off time parameters configurable from outside because cc1020 needs longer listen time.
2009-03-26 12:50:57 +00:00
adamdunkels
65eb5fd4e8
Renamed the rimebuf module to packetbuf to signal that the module is used outside of a pure Rime context (e.g., the sicslowpan code uses it).
2009-03-12 21:58:20 +00:00
adamdunkels
e6907a1d8b
Include random.h
2009-02-20 21:22:39 +00:00
adamdunkels
585620c102
Reverted the recent change from random_rand() to rand(). It turned out that
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since libc rand() returns a signed int, there were frequently problems with
timer values wrapping. By reverting to random_rand(), we can provide a
random generator that returns an unsigned and the timer problems are solved.
2009-02-11 11:08:53 +00:00
adamdunkels
dd9ffd87c4
Added missing #include announcement.h
2009-02-08 20:14:18 +00:00
adamdunkels
085df6b630
Improved version of LPP with support for broadcasts as well as announcement data in the probes
2009-02-08 19:30:18 +00:00
adamdunkels
c9528fb010
Added name, made default listen time shorter
2008-06-30 08:08:59 +00:00
oliverschmidt
a5fcfa2787
I seem to remember that we wanted to avoid ignoring gcc warnings that might trigger errors with other compilers ;-)
2008-05-16 21:31:57 +00:00
adamdunkels
532692e5a0
Removed reference to non-existant function rimebuf_attr_isset()
2008-05-16 15:04:10 +00:00
adamdunkels
8ea461b039
Changed on time to work with the current default tick time on the sky platform
2008-05-15 08:59:48 +00:00
adamdunkels
dbab9fbdb5
A quick, initial implementation of the LPP power-saving MAC protocol (Musaloiu-E et al, IPSN 2008)
2008-05-15 08:56:29 +00:00
