ID 原文 译文
47206 以达到缓存信息即时更新、辅助上游节点完成协作缓存的目的。 Utilizingthe information, upstream nodes could update their cache information table immediately to achieve cooperative caching.
47207 实验结果表明，ECCS 在服务负载减少率、平均跳数减少率和平均缓存命中率等方面与现有方法相比有显著优势。 The experimental results indicate ECCS can achieve salient performance gain in terms of server load reduction ratio, av-erage hop reduction ratio, average cache hit ratio, compared with current strategies.
47208 针对基于扩展模型(BEM)的正交频分复用(OFDM)系统时变信道估计中频谱利用率不高的问题，提出了一种多符号 BEM 方法。 In view of the problem of low frequency spectrum utilization for the time-varying channel estimation in or-thogonal frequency division multiplexing(OFDM) systems based on basis expansion model (BEM), a new method basedon multiple symbols BEM was proposed.
47209 相对于传统的单符号 BEM 方法，提出的方法减少了导频的子载波， Compared with the conventional method based on single symbol, the proposedmethod reduced the subcarriers for pilots.
47210 并且通过基线倾斜技术抑制了傅里叶级数展开时出现的 Gibbs 现象。 And by means of the baseline tilting technique, the new method mitigated theGibbs phenomenon caused by Fourier series expansion.
47211 理论分析表明，基线倾斜技术引入后的信道模型误差在归一化多普勒频偏不大于g1 121MNN时均有减小。 The theoretical analysis reveals that the channel model error isreduced due to the introduction of the baseline tilting technique when the normalized Doppler frequency is no more thang1 121MNN-+.
47212 数值仿真显示在相应的时变信道条件下，提出的方法的估计误差性能和误比特率(BER)性能相对传统方法有明显改善。 Finally, the numerical simulation shows that compared with conventional methods, the proposed algorithmachieves significant improvement on the estimation error performance and bit error rate (BER) performance under theconditions of the corresponding time-varying channel.
47213 针对多速率多节点 IEEE 802.11 网络的视频传输公平性问题，提出了基于节点队列选择性分组丢失与竞争窗口值动态调整的低速视频节点的队列与竞争窗口（VQCW, video queue contention window）算法。 The video transmission strategy VQCW (video queue contention window) was proposed for video transmis-sion fair problem in multi-rate and multi-node IEEE 802.11 networks. The strategy was based on node queue selectivepacket drop and contention window dynamic adjustment.
47214 由于网络的吞吐量与初始竞争窗口有较大关系，基于初始竞争窗口值，推导了最大吞吐量计算模型， It deduced a maximum throughput model according to initialcontention window size because of the relation between throughput and initial contention window size.
47215 为吞吐量性能改进提供理论上限。 This model canprovide theoretical upper limit for improving throughput.