Opportunistic P2P Interactions in Mobile Pervasive

Environments Olga Ratsimor Olga Ratsimor Ph.D. CandidatePh.D. Candidate

Bartering of Digital Goods and Services in Pervasive

Environments• Context-based, continuous bartering with peers in pervasive environments

• Value in Use - is the value of the particular electronic good or service for the particular user.

• Value in Exchange - reflects the potential value of the service against any other service in value-for-value exchanges.

• Effects of collaborative strategies on the welfare of the network • Effects of digital rights management restrictions on bartering collaborations• Exploiting relationships between groups of devices

Has: Map-A, RingTone-A,CWants: RingTone-B

D4

Has: Map-A, Song-AWants: RingTone-B

D3

D1

Has: RingTone-B, C, DWants: Song-A

D2Has: Wallpaper-A, Song-A

RingTone-B,CWants: ScreenSaver-A

Wallpaper-B

Has: ScreenSaver-A, BWants: RingTone-A

D5

Has: Map-A, RingTone-A,CWants: RingTone-B

D4

Has: Map-A, Song-AWants: RingTone-B

D3

D1

Has: RingTone-B, C, DWants: Song-A

D2Has: Wallpaper-A, Song-A

RingTone-B,CWants: ScreenSaver-A

Wallpaper-B

D2Has: Wallpaper-A, Song-A

RingTone-B,CWants: ScreenSaver-A

Wallpaper-B

Has: Wallpaper-A, Song-ARingTone-B,C

Wants: ScreenSaver-AWallpaper-B

Has: ScreenSaver-A, BWants: RingTone-A

D5

initiator participant

Discovery MSG

Not Found

Discovered

Proposal

Reject

Accept

Counter Proposal

Counter Proposal RPL

initiator participant

Discovery MSGDiscovery MSG

Not Found

Discovered

Not Found

Discovered

Not Found

Discovered

ProposalProposalProposal

Reject

Accept

Counter Proposal

Reject

Accept

Counter Proposal

Reject

Accept

Counter Proposal

Counter Proposal RPLCounter Proposal RPL iWantiWantiHaveiHaveiWantiWantiHaveiHave

Intelligent Marketing in Mobile Peer-To-Peer Environments

eNcentive

MH3

MH1

MH2

Animated Slide

eNcentive: Targeting Locations

eNcentive + TrueBahn• Trust based mobile shopping• Mobile users are divided into two groups

• Kids and Adults• Groups are interlined

• Kids have a circle of friends that can grow and shrink • Adults have circle of other Adults that they trust. The

circle can grow and shrink.• Kids can shop for items that thy have been authorized

to buy• If there is a new item on the wish list then kids need to

find an Adult from their trust network to give them authorization.