A survey on incentives and reputation management on D2D ecosystems

PhD Qualifying Examination


Title: "A survey on incentives and reputation management on D2D 
ecosystems"

by

Mr. Dimitrios CHATZOPOULOS


Abstract:

Advances in device-to-device (D2D) ecosystems have brought on mobile 
applications that utilise nearby mobile devices in order to improve users' 
quality of experience (QoE). The interactions between the mobile devices 
have to be transparent to the end users and can be of many services - 
opportunistic networking, traffic offloading, computation offloading, 
cooperative streaming and P2P based k-anonymity location privacy service, 
to name a few. Whenever mobile users are willing to ``ask for help'' from 
their neighbours, they need to make non trivial decisions in their 
selections in order to maximise their utility. Current motivation 
approaches for mobile users that participate in such environments are of 
two types: (i) credit-based and (ii) reputation-based. These approaches 
rely either on centralised authorities or require prohibitively many 
messages or require tamper resistant security modules. In this survey we 
present (i) the characteristics of D2D ecosystems and the features of D2D 
applications and frameworks and (ii) the existing types of cooperation 
enforcing and incentive mechanisms and their requirements to be 
operational. Next, we discuss (i) a decentralised cryptocurrency that can 
be used to support the bookkeeping of a cooperation enforcing mechanism 
and (ii) the multiway trade-off between consistency, operational costs, in 
terms of messages exchanged and storage needs, and awareness in 
reputation-based cooperation enforcing mechanisms.


Date:			Monday, 16 May 2016

Time:                  	1:30pm - 3:30pm

Venue:                  Room 3584
                         Lifts 27/28

Committee Members:	Dr. Pan Hui (Supervisor)
 			Dr. Brahim Bensaou (Chairperson)
 			Prof. Gary Chan
 			Dr. Wei Wang


**** ALL are Welcome ****