软件系统是对现实世界模型的反映,现实世界的变化要求软件系统进行相应的演化.软件演化是软件系统的动态行为,贯穿整个软件生命周期,从系统的初始开发阶段到最终的软件维护.软件演化包括软件系统的过程,方法,技术,组织方式等的演化.基于软件构架和构件的开发方法实现的系统比传统的开发方法具有更好的易演化性.软件构架高度...
FMU-DCM80, 80KM DCF-based Passive Dispersion Compensation Module, LC/UPC Dispersion Compensation Module (DCM) is designed to fix the form of optical signals that are deformed by chromatic dispersion. The module offers a high level of compensation while maintaining a low flat insertion loss as we...
FMU-DCM80, 80KM DCF-based Passive Dispersion Compensation Module, LC/UPC Dispersion Compensation Module (DCM) is designed to fix the form of optical signals that are deformed by chromatic dispersion. The module offers a high level of compensation while maintaining a low flat insertion loss as we...
Three schemes (pre-compensation, post-compensation, mix-compensation of dispersion compensation) of dispersion compensation with DCF are proposed. The simulation model of the WDM based on the Optisystem is presented according to the above principle. The simulation results such as Q factor and BER ...
来源期刊 GLOBECOM -NEW YORK- 2003 研究点推荐 DCF-based Inter-AP Communication Multi-channel Wireless LAN Mesh Architecture Idle Channel Search Packet Forwarding 站内活动 0关于我们 百度学术集成海量学术资源,融合人工智能、深度学习、大数据分析等技术,为科研工作者提供全面快捷的学术服务。在这里我们保持...
DCFDataflowFine-grainGradient descentParallelEmerging recommender systems often adopt collaborative filtering techniques to improve the recommending accuracy. Existing collaborative filtering techniques are implemented with either alternating...doi:10.1007/s10766-017-0525-yXiangyu Ju...
Reprints and permissions © 2004 Springer-Verlag Berlin Heidelberg Cite this paper Seo, MH., Yoon, HJ., Ma, JS. (2004). Fast Flooding in Power Save Mode of IEEE 802.11 DCF Based Mobile Ad Hoc Networks. In: Mitrou, N., Kontovasilis, K., Rouskas, G.N., Iliadis, I., Merakos, ...
Function,DCF),它是基于冲突避免的载波侦听 多路访问(CSMA/CA)机制,由冲突导致的数据 重传遵循二进制指数退避规则;另一种是基于轮询 的点协调功能(PointCoordinationFunction,PCF)。 由于PCF实现复杂,实际中大多采用DCF。 DCF定义了两种数据接入模式:基本模式和 RTS/CTS握手模式。二者的区别在于,后者在发 送数据前,...
Objective: The demand for Cellular based multimedia services is growing day by day,in order to fulfill such demand the present day cellular networks needs ... S Palle,S Shankar - 《International Journal of Sensors Wireless Communication & Control》 被引量: 0发表: 2020年 Stability and Throughput...
摘要: The impact of the span length on the optimal configuration of a transmission system with hybrid Raman/EDFA amplification is studied using the nonlinearity management theory. Optimal length is determined for an SSMF/DCF 40 Gb/s system....