- 多向性天線
- 非定向天線
- 全方向性天線
- 全向天線
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omnidirectional antenna中文什么意思
例句與用法
- The directional routing protocol ds _ dsr put forward by the author is the improvement of the current protocol dsr , complete routine discovery and maintenance by directional neighbor nodes routing table , source routing and directional steering . the research discovers the application of the directional antenna , compare the omnidirectional antenna can increases the networks " total throughput , obviously reduces the co _ channel interference ( cci ) , multiple access interference ( mai ) , enlarges the nodes " signal and interference to noise ratio ( sinr ) , and because of the high gain of directional antenna can realize the communication with farther distance and less jump , end to end delay can decrease deeply , simultaneously , security of networks can be improved partially , the node energy also can be saved easily by power control
本文提出的定向路由協(xié)議ds _ dsr是基于對現(xiàn)有協(xié)議dsr的改進(jìn)下實(shí)現(xiàn)的，通過定向鄰節(jié)點(diǎn)路由表、定向源路由和定向搜索來完成路由發(fā)現(xiàn)與維護(hù)。研究發(fā)現(xiàn)，定向天線的應(yīng)用，相比全向天線可明顯提高網(wǎng)絡(luò)的總的吞吐量，減少信道干擾、多址干擾，提高信干噪比，且由于定向天線的高增益可實(shí)現(xiàn)較遠(yuǎn)距離、較少跳數(shù)的通信，減少了路由發(fā)現(xiàn)時間，這樣大大減小了傳輸時延，網(wǎng)絡(luò)的整體性能得到了不同程度的提高，同時部分地解決安全問題，通過功率控制還可較容易的實(shí)現(xiàn)節(jié)能的目的。 - Previous research on the ad hoc network almost aim at omnidirectional antenna of all receivers and transmitters , or as a default attribution . in my thesis , firstly i describe the advantages of the directional antenna at many aspects which including spatial division multiple access ( sdma ) , the antenna gain , anti - interference etc . and analyze the possibility about the directional antenna used for the ad hoc networks , secondly i study its multiple access and routine protocols using the directional antenna . and compare the protocol difference and network " performance between omnidirectional and directional antenna in particular environment
首先闡述了定向天線在網(wǎng)絡(luò)空分復(fù)用( sdma ) 、天線增益、抗干擾等方面的的優(yōu)勢，分析了定向天線用于移動自組網(wǎng)的可行性，接著重點(diǎn)研究了基于定向天線的多址接入?yún)f(xié)議和路由協(xié)議，分析了與全向天線在組網(wǎng)和協(xié)議實(shí)現(xiàn)中的異同點(diǎn)和優(yōu)缺點(diǎn)，并對特定的環(huán)境下的網(wǎng)絡(luò)性能作了對比。
英文釋義
名詞- an antenna that sends or receives signals equally in all directions
同義詞：nondirectional antenna