摘要: |
在无线数据传输网络中,物理层帧差错率(FER)是影响网络性能的一个主要因素。无线链路层重传技术是改善网络性能因无线信道误码率较高而下降的一项重要措施。本文主要研究cdma2000无线网络中链路层重传技术对无线TCP数据传输的影响,提出一种cdma2000链路层重传方案,并通过OPNET仿真技术对该重传方案进行仿真,验证了该方案能改善TCP数据在cdma2000无线网络中的传输性能。 |
关键词: 数据传输网 cdma2000 链路层重传 TCR/RLP OPNET仿真 帧差错率 |
DOI:10.3969/j.issn.1001-893X. |
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基金项目:国家自然科学基金项目"高速信息网络传输控制策略最优化研究"(69972015) |
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An RLP Retransmission Scheme over cdma2000 Wireless Link Layer for Improving TCP Performance |
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Abstract: |
Frame error rate of physical layer is a key factor that affects the network performance in the wireless data network, and the retransmission technology of wireless link layer is an important measure to improve the degraded network performance in wireless circumstance. In this paper, the authors study the effect of the link layer retransmission schemes of cdma2000 on TCP performance, and an RLP retransmission scheme over cdma2000 wireless link is proposed. The simulation of this scheme using OPNET shows the improvement of the normallized TCP throughput. |
Key words: Data transmission network,cdma2000,Link Layer Retransmission,TCP/RLP,OPNET Simulation,Frame error rate |