本文選題：水聲傳感器網(wǎng)絡 + MAC協(xié)議��； 參考：《浙江大學》2017年碩士論文

【摘要】：水聲傳感器網(wǎng)絡因其傳播時延大,誤碼率高,多徑現(xiàn)象嚴重,多普勒效應明顯,可用帶寬窄等的特點,無法使用陸地上成熟的MAC協(xié)議,而MAC協(xié)議主要負責分配共享的信道資源,減少節(jié)點傳輸?shù)臄?shù)據(jù)包的碰撞,對于網(wǎng)絡的正常通信至關重要。本文在充分考慮到水聲傳感器網(wǎng)絡特點的基礎上,針對移動節(jié)點接入小規(guī)模固定傳感器網(wǎng)絡這一特殊應用,設計出能保證移動節(jié)點及時無碰撞接入的水下MAC協(xié)議。針對移動節(jié)點接入小規(guī)模單跳傳感器網(wǎng)絡,本文設計了 LTM-MAC協(xié)議。在有移動節(jié)點接入時,給予移動節(jié)點足夠高的優(yōu)先級,讓其及時、無碰撞地接入靜態(tài)網(wǎng)絡發(fā)送數(shù)據(jù);而在無移動節(jié)點接入時固定節(jié)點就按照使得空閑等待時延最小的發(fā)送順序來發(fā)送數(shù)據(jù)。仿真和實驗表明LTM-MAC協(xié)議在吞吐率,能量有效性尤其是移動節(jié)點的接入時延等方面均體現(xiàn)出了優(yōu)越性。針對移動節(jié)點接入小規(guī)模多跳傳感器網(wǎng)絡,本文設計了 TMM-MAC協(xié)議。為應對隱藏終端和暴露終端問題研究設計高效的時隙分配算法,制定移動節(jié)點接入機制,并利用多跳特性,允許與移動節(jié)點互不干擾的固定節(jié)點并行發(fā)送數(shù)據(jù),從而提高信道的利用效率。另外,考慮到水下傳播時延大的問題,根據(jù)數(shù)據(jù)包的長短設計出不同的發(fā)送機制,從而充分利用信道,提高網(wǎng)絡吞吐率。仿真和實驗表明TMM-MAC達到了設計要求,除了更高的吞吐率和能量使用效率之外,能保證移動節(jié)點更快接入。
[Abstract]:Due to its large propagation delay, high bit error rate, serious multipath phenomenon, obvious Doppler effect and available bandwidth, underwater acoustic sensor networks are unable to use the mature MAC protocol on land. The MAC protocol is mainly responsible for allocating shared channel resources. Reducing the collision of data packets transmitted by nodes is very important for the normal communication of the network. Based on considering the characteristics of underwater acoustic sensor networks and aiming at the special application of mobile nodes accessing small scale fixed sensor networks, this paper designs an underwater MAC protocol which can guarantee the collision free access of mobile nodes in time. In this paper, LTM-MAC protocol is designed for mobile nodes to access small scale single hop sensor networks. When there is a mobile node access, the mobile node is given sufficient priority so that it can access the static network to send data in a timely and collision-free manner. In the absence of mobile node access, the fixed node sends the data in the order that the idle waiting delay is minimized. Simulation and experiments show that LTM-MAC protocol has advantages in throughput, energy efficiency, especially the access delay of mobile nodes. In this paper, TMM-MAC protocol is designed for mobile nodes to access small scale multi-hop sensor networks. In order to solve the problem of hidden terminal and exposed terminal, an efficient slot allocation algorithm is designed, and a mobile node access mechanism is developed, and the multi-hop feature is used to allow the mobile node to send data in parallel with the fixed node that is not interfering with each other. Thus, the efficiency of channel utilization is improved. In addition, considering the problem of large underwater propagation delay, different transmission mechanisms are designed according to the length of data packets, so as to make full use of the channel and improve the throughput of the network. Simulation and experimental results show that TMM-MAC meets the design requirements and can ensure faster access to mobile nodes in addition to higher throughput and energy efficiency.
【學位授予單位】：浙江大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TN929.3;TP212.9

【參考文獻】

相關期刊論文 前6條

1 楊海波;徐元欣;徐文;劉陳展;;水下移動平臺數(shù)據(jù)采集和傳輸系統(tǒng)設計[J];傳感技術學報;2014年03期

2 郭忠文;羅漢江;洪鋒;楊猛;倪明選;;水下無線傳感器網(wǎng)絡的研究進展[J];計算機研究與發(fā)展;2010年03期

3 馬崇霄;吳長奇;;基于網(wǎng)絡仿真器NS2的Ad hoc網(wǎng)絡路由協(xié)議仿真[J];電子測量技術;2008年05期

4 王振中;關媛;陸建德;陸佰林;;基于NS2仿真平臺的Ad hoc新路由協(xié)議的模擬[J];計算機仿真;2007年04期

5 孫桂芝;桑恩方;王開玉;;水聲通信網(wǎng)數(shù)據(jù)鏈路層協(xié)議仿真研究[J];聲學技術;2006年02期

6 王曉燕,鄭明春;基于NS2的網(wǎng)絡仿真研究與應用[J];計算機仿真;2004年12期

相關碩士學位論文 前4條

1 李永翠;水聲傳感器網(wǎng)絡分簇協(xié)議的研究[D];大連海事大學;2014年

2 楊海波;水下傳感網(wǎng)絡框架下的移動數(shù)據(jù)采集和傳輸技術研究[D];浙江大學;2014年

3 李永佳;面向小規(guī)模水聲傳感器網(wǎng)的時分多址MAC協(xié)議研究[D];浙江大學;2014年

4 袁科;水下無線傳感器網(wǎng)絡MAC協(xié)議仿真研究[D];西南交通大學;2010年

，

本文編號：2015386