一種自適應(yīng)的太赫茲無線個(gè)域網(wǎng)高效定向MAC協(xié)議

任智; 呂昱輝; 徐兆坤; 鄒明芮; 田潔麗

doi:10.11999/JEIT180306

一種自適應(yīng)的太赫茲無線個(gè)域網(wǎng)高效定向MAC協(xié)議

doi: 10.11999/JEIT180306 cstr: 32379.14.JEIT180306

1.
重慶郵電大學(xué)移動(dòng)通信技術(shù)重慶市重點(diǎn)實(shí)驗(yàn)室 ??重慶　400065
2.
中國工程物理研究院激光聚變研究中心 ??成都　610000

基金項(xiàng)目: 國家自然科學(xué)基金(61379159)，重慶市基礎(chǔ)與前沿研究計(jì)劃項(xiàng)目(cstc2015jcyjBX0085)

詳細(xì)信息

作者簡(jiǎn)介:
任智：男，1971年生，教授，博士生導(dǎo)師，研究方向?yàn)樘掌潫o線個(gè)域網(wǎng)和機(jī)會(huì)網(wǎng)絡(luò)

呂昱輝：男，1993年生，碩士生，研究方向?yàn)樘掌潫o線個(gè)域網(wǎng)定向MAC協(xié)議

徐兆坤：男，1993年生，碩士生，研究方向?yàn)樘掌潫o線個(gè)域網(wǎng)定向并行MAC協(xié)議

鄒明芮：女，1986年生，助理研究員，博士，研究方向?yàn)樘掌潫o線網(wǎng)絡(luò)MAC層協(xié)議

田潔麗：女，1992年生，碩士生，研究方向?yàn)樘掌潫o線個(gè)域網(wǎng)跨PAN數(shù)據(jù)傳輸

通訊作者:
呂昱輝　lvyuhui_cqupt@126.com

中圖分類號(hào): TP393.04
計(jì)量
- 文章訪問數(shù): 1568
- HTML全文瀏覽量: 665
- PDF下載量: 79
- 被引次數(shù): 0
出版歷程
- 收稿日期: 2018-04-02
- 修回日期: 2018-08-16
- 網(wǎng)絡(luò)出版日期: 2018-09-12
- 刊出日期: 2019-01-01

An Adaptive Directional MAC Protocol for Terahertz Wireless Personal Networks

1.
Chongqing Key Laboratory of Mobile Communication Technology, Chongqing University of Post & Telecommunications, Chongqing 400065, China
2.
Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Chengdu 610000, China

Funds: The National Natural Science Foundation of China (61379159), The Chongqing Basic and Frontier Research Project (cstc2015jcyjBX0085)

摘要

摘要:
針對(duì)現(xiàn)有太赫茲無線個(gè)域網(wǎng)定向MAC協(xié)議存在的波束訓(xùn)練開銷和入網(wǎng)時(shí)延偏大以及Beacon, S-CAP時(shí)段時(shí)隙利用不足問題，該文提出一種自適應(yīng)的定向MAC協(xié)議——AD-MAC，自適應(yīng)地在靜態(tài)場(chǎng)景下采用全網(wǎng)協(xié)同波束訓(xùn)練，在動(dòng)態(tài)場(chǎng)景下節(jié)點(diǎn)基于歷史信息快速回復(fù)波束訓(xùn)練幀，同時(shí)使用反向監(jiān)聽策略減小同扇區(qū)節(jié)點(diǎn)的幀碰撞概率，并且通過時(shí)隙復(fù)用在Beacon和S-CAP時(shí)段并行發(fā)送控制幀和數(shù)據(jù)幀。理論分析表明了AD-MAC協(xié)議的有效性，仿真結(jié)果顯示：相較于ENLBT-MAC等典型協(xié)議，AD-MAC在靜態(tài)場(chǎng)景下的波束訓(xùn)練開銷和節(jié)點(diǎn)平均入網(wǎng)時(shí)延分別降低了約21.84%和22.70%，在動(dòng)態(tài)場(chǎng)景下上述二指標(biāo)則分別減小了約18.7%和13.07%。
- 無線個(gè)域網(wǎng) /
- 太赫茲 /
- MAC協(xié)議 /
- 定向
Abstract:
To reduce the beamforming training cost and network delay, make the best of Beacon and S-CAP sub-period in the existing Terahertz Wireless Personal Access Network (TWPAN) directional MAC protocols, an Adaptive Directional MAC (AD-MAC) protocol for TWPAN is proposed. AD-MAC adaptively uses the entire network cooperative beam training in a static scenario, and makes network nodes quickly respond to beam training frames based on historical information in a dynamic scenario. The reverse listening strategy is used to reduce the collision probability of same sector nodes. The control frame and data frame are transmitted simultaneously in the Beacon and S-CAP slot using time-slot reuse. Theoretical analysis verifies the effectiveness of AD-MAC. Also, simulation results show that, comparing with ENLBT-MAC, AD-MAC reduces about 21.84% of beamforming training cost and 22.70% of the average network delay in static scene, and reduces about 18.7% of beamforming training cost and 13.07% of the average network delay in dynamic scene.
- Wireless personal access networks /
- Terahertz /
- MAC protocols /
- Orientation

HTML全文

圖 1 波束訓(xùn)練開銷比較

下載: 全尺寸圖片幻燈片

圖 2 平均入網(wǎng)時(shí)延比較

下載: 全尺寸圖片幻燈片

圖 3 MAC層吞吐量比較

下載: 全尺寸圖片幻燈片

圖 4 平均數(shù)據(jù)幀延遲比較

下載: 全尺寸圖片幻燈片

表 1 公共仿真參數(shù)

參數(shù)(單位)	數(shù)值
節(jié)點(diǎn)數(shù)目(個(gè))	4,7,10,13,16
波束寬度(°)	5
傳輸速率(Gbps)	10
收發(fā)端距離(m)	10
仿真時(shí)間(s)	10
超幀周期(ms)	10
節(jié)點(diǎn)緩存(Mb)	10
發(fā)包間隔(ms)	0.08
數(shù)據(jù)幀長(zhǎng)(bit)	64000

下載: 導(dǎo)出CSV

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