disconnected, non end-to-end networks

Disconnected, Non end-to-end networks

Presented by: Khaled Harras

So what happens when both wired and wireless communication break down?!

Wireless Ad Hoc Networks

• Connected end-to-end ad hoc networks

A

B

A

B

• Disconnected ad hoc networks

Epidemic Routing

The rise of the Interplanetary Internet….!

Similar Problems,Common Solutions

Fiber Satellites

Cable

Mobile/Wireless

WDM

Nomadic

Terabit communications

low delay

Self-organizing

FTP/TCP/IP

Short-haul communications

TerrestrialInternetStandards

Opportunity for leverage

S-band X-bandKa-band

LEOConstellations

MarsNetwork

Deep-spaceOptical

Megabit communications

high delay

Long-hau

l com

munic

atio

ns

SpaceInternetStandards

File-basedOperations InterPlaNetary

InternetArchitecture

So where is the problem??...

….Only when planets come in the way!

New, expandable architecture…

NetworkIP

NetworkIP

Phys 1

Link 1 Link 1

Phys 1 Phys 2

Link 2

Internet: a Network of Connected Sub-Networks

Phys 2

Link 2

Phys 3

Link 3

App

App

App App

App

App

NetworkIP

TransportTCP

NetworkIP

TransportTCP

Phys 3

Link 3

Subnet 1 Subnet 2 Subnet 3

TCP/IP: Interconnected Networks

Network of internets spanning dissimilar environments

Bundle

App

App

App App

App

App

Bundle Bundle

Phys 1

Transport a

Network a

Link 1 Link 1

Phys 1 Phys 2

Link 2

Network a

Phys 3

Link 3

Network b

Transport b

Phys 2

Link 2

Network a

Transport a

Phys 3

Link 3

Network b

Transport b

Internet A Internet B

Bundles: Interconnected Internets

Is all this “way out there”??!!

Are there other applications??

YES!!.... Extreme challenged networks.

The rise of Delay Tolerant Networks (DTNs)…..

“Regions” instead of “Internets” in DTNs

Persistent Storage and Custody Transfer

There are even more down-to-earth (literally!) applications….