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.
翻译:移动自组织网络(MANET)是由无线链路以分布式方式连接、无固定基础设施的自主移动设备集合。实时多媒体服务(如MANET上的视频流)提供了极具前景的应用场景,例如:旅游团中两名成员通过其所组建的MANET共享视频传输,或用户在MANET上部署视频流服务观看电影等。另一方面,社交网络技术使用户通过社交网络与其他人在线积极互动,推动了网络社交化。用户间的交互信息正被用于提供社交增强型软件。为实现此目标,需量化特定用户与其交互用户间的关系强度。这种关系强度可通过马尔科姆·格兰诺维特于1973年首次提出的"纽带强度"(Tie Strength, TS)概念进行度量。本文对先前提出的多径多媒体动态源路由(MMDSR)协议进行改进,在转发算法决策中引入社交度量TS。我们在服务质量(QoS)与构成MANET转发路径的用户间信任水平之间寻求平衡,旨在保证QoS不受显著影响的同时提升信任度量指标。