CAJ | 학술논문

为了解决流媒体传输拥塞控制机制的不足，提出了一种基于链路延迟抖动趋势的 TFRC改进算法。对传统的 TFRC 拥塞控制算法以及链路延迟抖动变化趋势进行了分析，采用对链路拥塞状况进行预测的策略，引入抖动因子来修正 TFRC 的吞吐量公式，由链路延迟抖动的趋势自适应地调整发送速率。仿真实验结果表明，改进算法在保持 TCP 友好性的前提下，有效提高了流媒体数据传输的平滑性和稳定性。
위료해결류매체전수옹새공제궤제적불족，제출료일충기우련로연지두동추세적 TFRC개진산법。대전통적 TFRC 옹새공제산법이급련로연지두동변화추세진행료분석，채용대련로옹새상황진행예측적책략，인입두동인자래수정 TFRC 적탄토량공식，유련로연지두동적추세자괄응지조정발송속솔。방진실험결과표명，개진산법재보지 TCP 우호성적전제하，유효제고료류매체수거전수적평활성화은정성。
In order to solve the shortage of congestion control mechanism for the streaming media transmission , this article proposes an improved TFRC algorithm based on link delay jitter trend. The traditional TFRC congestion control algorithm and link delay jitter trend are analyzed, the throughput formula for TFRC is modified by using the strategy of prediction link congestion status and introducing jitter factor, the sending rate is adaptively adjusted by the link delay jitter trend. The simulation experimental results show that the improved algorithm enhances effectively the smoothness and stability of the streaming data transmission under the premise of maintaining TCP-friendly.