MSNs中基于TCC感知的数据转发方法

Data forwarding method based on TCC-aware in mobile social networks

现有的移动社交网络数据转发方法大多没有考虑到处存在的暂态连通区域(TCC),导致数据转发质量较低。为此,根据5组真实数据对TCC属性与数据转发性能的关系进行分析,提出一种基于TCC感知的数据转发算法。考虑到该算法会增加网络中数据拷贝的数量,提出改进型TCC感知数据转发策略,通过选择TCC中的最优节点集,避免它们的相遇重叠现象,利用少量节点实现数据转发机会最大化。仿真结果表明,所提方法的性能在数据投递率和网络开销方面的性能优于当前其它数据转发算法。

The existing data forwarding methods seldom consider transient connected components(TCC)in mobile social networks,leading to the low quality of data forwarding.To solve this problem,the relationship between TCC attributes and data forwarding performance was analyzed according to the five groups' real data,and a TCC-aware data forwarding algorithm was proposed.Considering that the mentioned algorithm increased the number of data copies in mobile social networks,the improved TCC-aware data forwarding strategy was proposed,which can enhance the TCC-aware data forwarding by selecting an optimal set of nodes in the TCC to avoid overlap in their contacts and maximize the data forwarding opportunity with a small number of nodes.Simulation results show that the proposed TCC-aware data forwarding strategies outperform existing data forwarding strategies in terms of data delivery ratio and network overhead.