Sensory and haptic data transfers to critical real-time applications over the Internet require better than best effort transport, strict timely and reliable ordered deliveries. Multi-sensory applications usually include video and audio streams with real-time control and sensory data, which aggravate and compress within real-time flows. Such real-time are vulnerable to synchronization to synchronization problems, if combined with poor Internet links. Apart from the use of differentiated QoS and MPLS services, several haptic transport protocols have been proposed to confront such issues, focusing on minimizing flows rate disruption while maintaining a steady transmission rate at the sender. Nevertheless, these protocols fail to cope with network variations and queuing delays posed by the Internet routers.
This paper proposes a new haptic protocol that tries to alleviate such inadequacies using three different metrics: mean frame delay, jitter and frame loss calculated at the receiver end and propagated to the sender. In order to dynamically adjust flow rate in a fuzzy controlled manners, the proposed protocol includes a fuzzy controller to its protocol structure. The proposed FRTPS protocol (Fuzzy Real-Time haPticS protocol), utilizes crisp inputs into a fuzzification process followed by fuzzy control rules in order to calculate a crisp level output service class, denoted as Service Rate Level (SRL). The experimental results of FRTPS over RTP show that FRTPS outperforms RTP in cases of congestion incidents, out of order deliveries and goodput.

中文翻译：

---

提出的携带触觉数据和多感觉流的模糊实时HaPticS协议

通过感官和触觉数据到Internet上的关键实时应用的传输要比尽力而为传输，严格的及时和可靠的有序交付要好。多感官应用程序通常包括具有实时控制和感官数据的视频和音频流，它们会在实时流中加重和压缩。如果结合不良的Internet链接，则这种实时性很容易出现同步问题。除了使用区分的QoS和MPLS服务外，还提出了几种触觉传输协议来解决此类问题，重点是在保持发送方稳定的传输速率的同时，最大程度地降低流率中断。但是，这些协议无法应对Internet路由器造成的网络变化和排队延迟。
本文提出了一种新的触觉协议，该协议试图使用三种不同的指标来缓解这种不足：在接收器端计算并传播到发送器的平均帧延迟，抖动和帧丢失。为了以模糊控制的方式动态地调节流速，所提出的协议对其协议结构包括模糊控制器。所提出的FRTPS协议（模糊实时haPticS协议）在模糊化过程中使用了清晰的输入，随后是模糊控制规则，以计算清晰的级别输出服务类别，表示为服务速率级别（SRL）。FRTPS超过RTP的实验结果表明，在发生拥塞事件，无序交付和良好吞吐量的情况下，FRTPS优于RTP。