{"title":"TFRC- ea:卫星网络中TFRC自适应算法","authors":"Guochao Hao, Pengbo Si, Yanhua Sun, Yanhua Zhang","doi":"10.1109/ICCSN.2019.8905393","DOIUrl":null,"url":null,"abstract":"As one of the most popular solutions to enable efficient multimedia service data delivery, transmission control protocol (TCP) friendly rate control (TFRC) protocol is capable of smoothly adjusting the throughput to avoid congestions based on the environment of the networks. However, the performance of TFRC in satellite networks degrades seriously. This is mainly because the low signal-to-noise ratio (SNR) of the wireless links results in serious packet loss rate, and the TFRC cannot precisely separate the two reasons of the packet loss, network congestions and wireless link errors. In this paper, we propose the TFRC with environment adaptation (TFRC-EA) as an extension to the traditional TFRC protocol. In TFRC-EA, by analyzing the network status based on the communication parameters such as link length and wavelength, the receiver calculates the expected packet loss rate, and send the result to the sender as the feedback. The throughput model is improved in TFRC-EA, enabling the more accurate transmission rate adjusting. Simulation results show that TFRC-EA significantly increases the throughput compared with the original TFRC and TCP, and reduces the delay jitter of the data stream.","PeriodicalId":330766,"journal":{"name":"2019 IEEE 11th International Conference on Communication Software and Networks (ICCSN)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"TFRC-EA: An Adaptive Algorithm of TFRC in Satellite Networks\",\"authors\":\"Guochao Hao, Pengbo Si, Yanhua Sun, Yanhua Zhang\",\"doi\":\"10.1109/ICCSN.2019.8905393\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"As one of the most popular solutions to enable efficient multimedia service data delivery, transmission control protocol (TCP) friendly rate control (TFRC) protocol is capable of smoothly adjusting the throughput to avoid congestions based on the environment of the networks. However, the performance of TFRC in satellite networks degrades seriously. This is mainly because the low signal-to-noise ratio (SNR) of the wireless links results in serious packet loss rate, and the TFRC cannot precisely separate the two reasons of the packet loss, network congestions and wireless link errors. In this paper, we propose the TFRC with environment adaptation (TFRC-EA) as an extension to the traditional TFRC protocol. In TFRC-EA, by analyzing the network status based on the communication parameters such as link length and wavelength, the receiver calculates the expected packet loss rate, and send the result to the sender as the feedback. The throughput model is improved in TFRC-EA, enabling the more accurate transmission rate adjusting. Simulation results show that TFRC-EA significantly increases the throughput compared with the original TFRC and TCP, and reduces the delay jitter of the data stream.\",\"PeriodicalId\":330766,\"journal\":{\"name\":\"2019 IEEE 11th International Conference on Communication Software and Networks (ICCSN)\",\"volume\":\"50 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2019 IEEE 11th International Conference on Communication Software and Networks (ICCSN)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICCSN.2019.8905393\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2019 IEEE 11th International Conference on Communication Software and Networks (ICCSN)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICCSN.2019.8905393","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
摘要
TCP (transmission control protocol)友好速率控制(TFRC)协议能够根据网络环境平滑地调整吞吐量以避免拥塞,是实现高效多媒体业务数据传输的最流行的解决方案之一。然而,在卫星网络中,TFRC的性能下降严重。这主要是因为无线链路的信噪比低导致丢包率严重,而TFRC无法精确区分丢包的两个原因:网络拥塞和无线链路错误。本文提出了具有环境适应性的TFRC协议(TFRC- ea),作为传统TFRC协议的扩展。在TFRC-EA中,接收端根据链路长度、波长等通信参数分析网络状态,计算期望丢包率,并将结果反馈给发送端。在TFRC-EA中改进了吞吐量模型,使传输速率调整更加精确。仿真结果表明,与原有的TFRC和TCP协议相比,TFRC- ea协议显著提高了吞吐量,降低了数据流的延迟抖动。
TFRC-EA: An Adaptive Algorithm of TFRC in Satellite Networks
As one of the most popular solutions to enable efficient multimedia service data delivery, transmission control protocol (TCP) friendly rate control (TFRC) protocol is capable of smoothly adjusting the throughput to avoid congestions based on the environment of the networks. However, the performance of TFRC in satellite networks degrades seriously. This is mainly because the low signal-to-noise ratio (SNR) of the wireless links results in serious packet loss rate, and the TFRC cannot precisely separate the two reasons of the packet loss, network congestions and wireless link errors. In this paper, we propose the TFRC with environment adaptation (TFRC-EA) as an extension to the traditional TFRC protocol. In TFRC-EA, by analyzing the network status based on the communication parameters such as link length and wavelength, the receiver calculates the expected packet loss rate, and send the result to the sender as the feedback. The throughput model is improved in TFRC-EA, enabling the more accurate transmission rate adjusting. Simulation results show that TFRC-EA significantly increases the throughput compared with the original TFRC and TCP, and reduces the delay jitter of the data stream.