Mobileman, HUT, 7/6/04, Cambridge Economic Work

1
Mobileman, HUT, 7/6/04, Cambridge Economic Work

• http//www.cl.cam.ac.uk/jac22
• Jon Crowcroft, Elgan Huang (PhD student), Sven
  Ostring, Ziran Sun (new Post Doc RA), Wen-Jun Hu
  (PhD student)

2
Work Y1, Y2

• Past
• Control Laws for incentive for resource sharing
  (transmission/receive, battery etc)
• Security and dynamics requirement for token for
  enforcement of sharing rules
• Current
• Application Scenarios Business Case (today)
• Accurate Mobility Models
• Future
• Middleware / P2P Applications
• Cross Layer Control (fuzzy logic controller, dual
  layer interference suppression)

3
Past work

• Dual control for incentives
• Route choice based on willingness to pay, and
  charge for resource
• Requires tamper-proof, dual-spend-proof token
  minting checking (hard to do p2p)
• Requires witnesses or other prevention of denial
  or theft of service

4
Current Work

• Economics (see next few slides) of
• Use Case and
• Incentives (Elgan/Sven/Me)
• Mobility Models based on real world measurement
• Vehicles (see scenario) - have simulation
  (Elgan/Wen Jun)
• People in Building/Mall

5
Economic Framework

• Looked at possible business case for manet
• City Cabs (paper circulated)
• Wireless Net Games (see netgames paper)
• Shopping Mall
• File Sharing on Autostrada (bahn, freeway)
• Haggle (see tomorrow!)
• Have paper accepted in SIGCOMM PINS workshop on
  why incentives do not work!
• Have analysis paper of pros/cons

6
Econ 1 - Frame
7
Econ 2 - Stakeholders
8
Econ 3 - Ad Hoc Taxi Dispatch
9
Econ 4 - Ad Hoc Game
10
Econ 5 - Ad Hoc Shopping Mall
11
Incentives

• PINS paper argue that early adopters cooperate
• Argue that incentives only work if
• Visible (e.g. money) or
• Automatic
• If visible then
• add decision complexity for user
• Monetizing creates opportunity for gaming
  (arbitrage)
• If automatic (e.g. in MAC)
• not easy to experiment
• but good long term goal!

12
Future- Cross LayerP2P Apps

• Cross layer - idea 1
• to use fuzzy logic controller to fuse together
  rules in the NeST
• avoid problems of dual nested (!) control loop in
  MAC Route Choice TCP
• Middleware/P2P Apps
• Could locate in application Agent (nest manager?)
• P2P app - see Haggle (tomorrow!) multicast file
  share/synchronisation