计算机系统应用
計算機繫統應用
계산궤계통응용
APPLICATIONS OF THE COMPUTER SYSTEMS
2015年
4期
159-163
,共5页
丢包重传%坚持计时器%多媒体视频流%嵌入式系统%轻量级协议栈
丟包重傳%堅持計時器%多媒體視頻流%嵌入式繫統%輕量級協議棧
주포중전%견지계시기%다매체시빈류%감입식계통%경량급협의잔
packet loss recovery%persistent timer%multimedia streaming%embedded system%light weight protocol stack
提出了一种在轻量级 TCP 协议栈上实现的零存储丢包重传机制,并设计了一种专门适用于多媒体视频流的坚持计时器。这两种机制的共同作用可以有效提高多媒体数据流在嵌入式系统上传输的效率和稳定性,避免网络拥塞。同时,针对不同的传输环境,对改进后的 TCP/IP 轻量级协议栈进行了效率和稳定性的测试,测试结果表明,经优化后的协议栈在不同的网络拥塞可以保持正常工作。
提齣瞭一種在輕量級 TCP 協議棧上實現的零存儲丟包重傳機製,併設計瞭一種專門適用于多媒體視頻流的堅持計時器。這兩種機製的共同作用可以有效提高多媒體數據流在嵌入式繫統上傳輸的效率和穩定性,避免網絡擁塞。同時,針對不同的傳輸環境,對改進後的 TCP/IP 輕量級協議棧進行瞭效率和穩定性的測試,測試結果錶明,經優化後的協議棧在不同的網絡擁塞可以保持正常工作。
제출료일충재경량급 TCP 협의잔상실현적령존저주포중전궤제,병설계료일충전문괄용우다매체시빈류적견지계시기。저량충궤제적공동작용가이유효제고다매체수거류재감입식계통상전수적효솔화은정성,피면망락옹새。동시,침대불동적전수배경,대개진후적 TCP/IP 경량급협의잔진행료효솔화은정성적측시,측시결과표명,경우화후적협의잔재불동적망락옹새가이보지정상공작。
This paper proposes a zero-copy packet loss recovery mechanism on light weight TCP/IP stack. Meanwhile, a new Persistent Timer especially for multimedia streaming is also described. With these two mechanisms, the multimedia streaming transmission could work more effectively and stably on embedded system, avoiding the network congestion. Besides that, an efficiency and stability test is proposed for this improved light weight TCP stack under various transmission situations. Experimental results show that the optimizated light weight TCP/IP stack could keep working under different network congestion.