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基于优惠券机制的TCP友好不等保护传输

Coupon-Based TCP Friendly Unequal Protection Scheme for Delivering Streaming Applications over Internet
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摘要 MPEG编码流中不同的结构成分在图像恢复时具有不同的重要性 ,针对此特征 ,本文将优惠券机制与媒体流的网络传输相结合 ,提出了基于优惠券机制的TCP友好不等保护传输方案 (CTFUPS) .仿真结果表明 ,该方案能够保护码流中对图像恢复质量起关键作用的结构描述字段 ,减少图像帧的丢失 ,有效改善图像传输质量 . As different coding structures of MPEG video influence the video reconstruction quality differently, this paper introduces a new scheme to deliver streaming applications over Internet, which is named as Coupon-based TCP Friendly Unequal Protection Scheme (CTFUPS). This new approach provides different level of protection denoted by coupon value to the different structures. The simulation results exemplify that our approach can decrease the frame-loss ratio and improve the video reconstruction quality efficiently.
作者 宋光农 赵永祥 陈常嘉
机构地区 北京交通大学电信学院通信系
出处 《电子学报》 EI CAS CSCD 北大核心 2004年第10期1644-1648,共5页 Acta Electronica Sinica
基金 国家自然科学基金 (No .60 1 32 0 30 No .60 1 32 0 30 )
关键词 码流 传输方案 MPEG编码 TCP友好 图像恢复 媒体流 图像传输质量 图像帧 仿真结果 丢失 Computer simulation Data structures Image coding Image quality Internet Network protocols
分类号 TN948 [电子电信—信号与信息处理] TP393 [自动化与计算机技术—计算机应用技术]
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参考文献15

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电子学报
2004年 第10期

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