Improved-transmission control protocol-friendly multicast congestion control (TFMCC)-protocol-based communication method

A communication method and protocol technology, which is applied in the field of multimedia communication and network transmission, can solve problems such as inability to respond to the network in time, lack of jitter in the TFMCC protocol, and congestion, so as to improve protocol stability, reduce average end-to-end delay, and reduce jitter Effect
CN102209077AInactive Publication Date: 2011-10-05SHANDONG UNIV
0 Cites 18 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG UNIV
Publication Date
2011-10-05
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses an improved-transmission control protocol-friendly multicast congestion control (TFMCC)-protocol-based communication method, which is implemented by the following steps of: every time when a source receives a feedback data packet from a current limiting receiver (CLR), computing end-to-end one-way delay jitter between the source and the CLR according to effective timestamp information in the feedback data packet, and computing a congestion judgment factor by utilizing the delay jitter to judge congestion; and computing a correction factor by utilizing the congestion judgment factor to regulate expected throughput and further regulate a transmission rate. In the method, the transmission rate is regulated by calculating the end-to-end delay jitter between the source and the CLR as a congestion signal, and the end-to-end delay jitter of a TFMCC protocol is effectively controlled, thereby effectively reducing the jitter of the protocol, average end-to-end delay, average end-to-end delay jitter, an average packet loss rate and the like, improving the stability and overall performance of the TFMCC protocol, and making the protocol better serve a multicast protocol and more suitable for the transmission of multimedia services.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of multimedia communication and network transmission, and in particular relates to a communication method based on an improved TFMCC protocol. Background technique

[0002] In recent years, multimedia services have grown day by day, and the demand for network bandwidth has also increased significantly, which greatly exceeds the capability of unicast. IP multicast technology thus becomes the key technology to solve this problem, it can effectively utilize network bandwidth and save network resources. However, IP multicast lacks a reliable congestion control mechanism. When the network is congested, it cannot effectively control the congestion. This will cause IP multicast to unfairly occupy bandwidth with IP flow, and even cause the network to be overloaded and paralyzed. As a bottleneck in the development of multicast applications, multicast congestion control has become a hotspot in the field of Internet r...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More