CDS algorithms to be
27 08 2008designed for multiple interfacesNot totally clear what the status is, how functional it is right nowOpportunistic Network SimulatorMobility models Random Helsinki model, Not So Random Helsinki model for flocks, communities of interest, etcSweet path movement demo overlaid w gMaps graphic very simple view position, to advertise and use wide variety of file descriptor sizesFiles downloaded be huge, many gigabytes for some new camerasBut ad hoc and sensor nets need to send smaller bundlesTCP will work to the moon, but its not awesome doesnt work to MarsDTN Neighbor DiscoveryPeople generally Ignore the problem host lists in config homebrew method, typically tied
to 802. 16, 3G to 802.
CDS algorithms to be usedMacker Generally aimed at 2030 node stubedge networksMacker If you have lot of nodes which dont want to hear the data, then CDS is good approachNew document version incorporates hashing for duplicate packet detectiontjkopena Sequencing, packet IDs, and DPD is large problem comments made on mailing listMANET Neighborhood Discovery Protocol nhdpDYMOOLSRv2Link Metrics for RoutingLink Metrics for OLSRv2Hop count is not the best routing determinant in all casesDesired characteristics dimensionless, scalar, positive, directional, additiveDirectional Links are naturally asymmetric no inconsistency defined without negotiationNetwork Topology Graph, easy to add link metricsIts not clear how to utilize multiple metrics
antennas not on correctly, etcHowever, links must be fairly bidirectional or unicast acknowledgements will not be received, so metrics based on broadcast control traffic measurements dont directly relate to expected data performanceComments from Justin DeanOLSR has several options for other link metrics spf, minmaxSend email, talk about OLSR tuningTests interested in seeing How do HELLO measurements reflect subsequent data transfer capabilities? What is behavior walking around corner?
MIMO can require overpowering signal subscribers cant go into Idle ModeWiMAX Forum currently defining multicast services in true and emulated mode? IPv4 over 802.
IETF IETF 69, Chicago, 2227, 2007Key Points16ngMulticast over is not trivialmost of the key bandwidth improvements MIMO, beamforming, etc, do not apply to multicast trafficIn general, IP data traffic over not totally established yetdtnns3 starting to be usable, looks much more accessible than ns2Lots of discussion on reliability in DTN Bundle Protocol currently relies on convergence layers and apps to manage errors and only covers dropped bundlesmanetPush to standardize link metrics other than hop count, especially for OLSRLots of discussion of duplicate packet detection in SMFOfficial meeting minutesMonday, 23rdDynamic Host ConfigurationIP Over IEEE NetworksCharter key points802.
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