第五代毫米波通訊系統下指向性參考信號設計與排程機制

翁仲威 - 2016 - tdr.lib.ntu.edu.tw
… slot, we observe that as Cs increase, both lower RS received per … , to increase the schedulable
time will increase the size of … 4 antenna element in each sector of our directional antenna. …

無線感測網路之時間覆蓋維護技術, 克障繞徑及定位演算法

朱威誠 - 2008 - airitilibrary.com
… Initially, a robot localization approach based on the directional-antenna system is proposed
to … expects to improve the performance in terms of packet delivery ratio and network lifetime. …

矿井井筒中电磁波传播特性研究与无线通信试验

薛少华, 谭建平, 邓积微, 石理想 - 煤炭学报, 2018 - mtxb.com.cn
… communication with directional antennas. Important parameters … increase of Tx-Rx distance.
The 90% coherence bandwidth is mostly less than 12 MHz,meaning a transmission capacity

協力多躍式網路的中繼站選擇機制之研究

陳顥, 王蒞君 - 2007 - ir.lib.nycu.edu.tw
… Second, we develop a power distribution algorithm and improve … The other is to increase the
antenna height of relays. These two … We estimate system capacity with 10% frame error rate …

一種用於802.11 s 無線網狀網絡中的新式防撞設計

李柏宇, 黃經堯 - 2012 - ir.lib.nycu.edu.tw
… and Ad-Hoc networks. … to increase capacity and flexibility of wireless mesh networks. A
strong focus has been made to MIMO technologies as well as on smart and directional antennas (…

微型基地台網路之佈局分析與效能估計

曾勇嵐, 黃經堯 - 2012 - ir.lib.nycu.edu.tw
… In this dissertation, we will analyze how to improve the … cellular netowrks, such as directional
antennas, power control, … techniques had been widely applied to ad hoc networks [70]-[74]…

行動無線感測網路之高效率定位技術

謝宜玲, 王國禎 - 2004 - ir.lib.nycu.edu.tw
… -sound ranging, or directional antennas. And DRL allows all the … (vmin, vmax], and we increase
vmax by 0.2 from 0.2 to 2.0 in … Nath, “DV based positioning in ad hoc networks,” in Kluwer …

[PDF][PDF] 一种改进型微带线定向耦合器及其应用

魏峰, 史小卫, 陈蕾, 黄丘林 - 西安电子科技大学学报(自然科学版), 2009 - tech.mweda.com
… The proposed directional coupler can obtain excellent isolation of - 65dB and coupling of -
10dB at 920MHz, effectively improve the isolation between TX and RX and decrease the size

[PDF][PDF] 下一世代資訊通訊網路尖端技術與應用---子計畫三: 後三代全IP 無線網路技術(IV)

林一平 - 2007 - ir.lib.nycu.edu.tw
… The ad hoc network is also connected to the core network we … to improve the power efficiency
for wireless ad hoc sensor … gateway capacities, we show how to allocate network interface …

適應信標間距的智慧型路由器之無線隨意網路媒體存取控制協定

周冠宏, 方凱田 - 2005 - ir.lib.nycu.edu.tw
… In this section, the key components which enable the communication in ad hoc networks
will … size dynamically is accommodating to various traffic conditions for improving network