1) spectral efficiency
频谱效率
1.
Effects of rolloff factor on resistance to time delay spread and spectral efficiency of adaptive QAM;
滚降系数对自适应QAM的抗时延扩展性能和频谱效率的影响
2.
Asymptotic spectral efficiency of the multicarrier code division multiple access;
多载波码分多址的渐进频谱效率
3.
Improvement in spectral efficiency of multiwavelength optical CDMA network;
多波长OCDMA系统频谱效率的改善
2) spectrum efficiency
频谱效率
1.
Study of spectrum efficiency in the third generation communication system;
第三代移动通信系统频谱效率的研究
2.
Higher order harmonic components are reduced for spectrum efficiency improvement,with optimized waveform expressions.
推导了统一的正交二元偏移键控(UBSK)信号的功率谱密度表达式,去除了高次谐波,获得了基本波形的优化结果,提高了频谱效率。
3.
,diamond sector and pentagonal sector) to improve the spectrum efficiency in the future OFDM-based mobile cellular system,particularly in the case of the uneven distribution of the traffic among cells/sectors.
为了提高未来基于OFDM的移动蜂窝系统的频谱效率,尤其在小区/扇区间流量不均匀的情况下,本文基于两种传统的扇区结构(菱形扇区和五边形扇区)提出一种分布式带宽借复用DBBR(Distributed Bandwidth Borrowing and Reusing)算法。
3) frequency efficiency
频谱效率
1.
Resource allocation algorithm to improve frequency efficiency of low SNR OFDM systems
一种提高低信噪比OFDM系统频谱效率的资源分配算法
2.
And the frequency efficiency of TD-SCDMA is very high.
TD-SCDMA系统采用了智能天线和联合检测技术,通常情况下,系统是码道受限的,具有很高的频谱效率。
3.
Limited frequency resource becomes the leading factor to the improvement of system performance along with the development of mobile telecommunication, and how to improve the frequency efficiency is one of the pop topic in researching area.
随着移动通信的发展，有限的频谱资源是限制系统性能提高的主要因素，如何尽可能地提高频谱效率是长期以来的研究热点。
5) spectrum utilization
频谱利用效率
1.
System simulation shows that the proposed strategy can achieve higher system throughput and spectrum utilization than two existing uniform power allocation schemes.
仿真结果表明,在认知无线电混合业务应用环境中,该方案可以兼顾不同业务速率终端传输速率的要求,为其分配比等功率分配方案更为合理的发射功率份额,提高了系统吞吐量和频谱利用效率。
补充资料：配置效率和生产效率
在经济学上，经济发展的动力，或者说效率的来源，分为两类：一类是配置效率，二是生产效率。所谓配置效率，是指给定资源和技术的条件下，怎么样使资源从边际生产率低的地方流向边际生产率高的地方，从而使得资源和利用更合理、社会总价值达到最大;而生产效率是指如何通过技术进步提高每一种资源的生产率，也就是把社会的生产可行性边界向外移。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条