  A mobile ad hoc network (MANET) is a set of autonomous mobile devices
connected by wireless links in a distributed manner and without a fixed
infrastructure. Real-time multimedia services, such as video-streaming over
MANETs, offers very promising applications, e.g. two members of a group of
tourists who want to share a video transmitted through the MANET they form; a
video-streaming service deployed over a MANET where users watch a film; among
other examples. On the other hand, social web technologies, where people
actively interact online with others through social networks, are leading to a
socialization of networks. Information of interaction among users is being used
to provide socially-enhanced software. To achieve this, we need to know the
strength of the relationship between a given user and each user they interact
with. This strength of the relationship can be measured through a concept
called tie strength (TS), first introduced by Mark Granovetter in 1973. In this
article, we modify our previous proposal named multipath multimedia dynamic
source routing (MMDSR) protocol to include a social metric TS in the decisions
taken by the forwarding algorithm. We find a trade-off between the quality of
service (QoS) and the trust level between users who form the forwarding path in
the MANET. Our goal is to increase the trust metric while the QoS is not
affected significantly.
