無線寬帶定位網(wǎng)絡(luò)中的資源分配優(yōu)化研究
[Abstract]:With the rapid development of wireless communication technology, accurate location information is one of the basic conditions for modern information technology to provide services. Besides measuring environment and measuring method, it is also influenced by resource allocation scheme. In this paper, based on the resource allocation optimization in wireless wideband location networks, a joint power bandwidth allocation model (Joint Power and Bandwidth Allocation,JPBA) is established to provide guidance for resource allocation optimization in wireless location networks. Through our analysis, the joint power bandwidth optimization model is a non-convex problem, which can not be directly solved. In this paper, an approximate solution with low complexity and high accuracy is presented by optimization theory. Because the above optimal resource allocation optimization model is based on the location of the real target node, there is an error between the position of the target node measured and the real location in the actual measurement and positioning process. In this paper, a low complexity and robust resource allocation optimization method is presented, which can give robust resource allocation results when the location of the target node is uncertain. The specific research contents include the following three aspects: first, this paper is based on the theory of wireless broadband location network based on time of arrival estimation. Based on square location error bound (Square Position Error Bound,SPEB), an optimal model of joint power and bandwidth allocation in wireless wideband positioning networks is established, such as the optimal positioning accuracy model and the optimal power utilization model. Because the model of joint power and bandwidth allocation optimization is a non-convex problem, it can not be directly solved. Based on the knowledge of geometric programming in optimization theory, a low complexity approximate solution method is presented in this paper. Secondly, because of the lack of prior knowledge and measurement error, there is a deviation between the position of the target node and the real position in the actual positioning measurement. The optimization model of resource allocation based on the location of real target nodes is not robust. In this paper, a simple robustness method is proposed based on the far-field approximation condition, which can provide a robust resource allocation scheme when the location of the target node is uncertain. Thirdly, we have carried out a lot of numerical simulation. Through the simulation results, we find that the JPBA method is much better than the simple power allocation optimization and uniform allocation in location performance and power resource efficiency. It verifies our previous inferences and assumptions. At the same time, we find that with the increase of the uncertainty of the target node position, the optimal JPBA method will lose its localization ability, but the robust JPBA can avoid the problem of the performance degradation caused by the location error. It can provide guidance for the design of the actual positioning system.
【學(xué)位授予單位】:哈爾濱工業(yè)大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2014
【分類號(hào)】:TN92
【相似文獻(xiàn)】
相關(guān)期刊論文 前10條
1 劉松楠;;無線寬帶的商業(yè)前景:是喜是憂?[J];中國(guó)信息界;2003年01期
2 鄧友清;;無線寬帶存取解決“最后一英里”的建置難題[J];電子測(cè)試;2003年08期
3 ;無線寬帶、計(jì)算結(jié)構(gòu)的未來發(fā)展趨勢(shì)[J];無線互聯(lián)科技;2005年01期
4 ;引領(lǐng)寬帶無線,創(chuàng)無限精彩——北電快速引領(lǐng)無線寬帶多媒體時(shí)代[J];通信世界;2005年38期
5 拉丁;北電“三足鼎立”奔向無線寬帶新時(shí)代[J];通訊世界;2005年11期
6 楊海峰;無線寬帶與計(jì)算結(jié)構(gòu)的未來發(fā)展趨勢(shì)[J];通信世界;2005年03期
7 DEF;;40塊錢!立即享受無線寬帶![J];電腦愛好者;2006年09期
8 劉林森;;無線寬帶引發(fā)行業(yè)革命[J];上海信息化;2006年07期
9 唐約翰;戴如梅;;概念驗(yàn)證[J];通信世界;2006年33期
10 ;無線寬帶 無限關(guān)注[J];電子測(cè)試;2006年06期
相關(guān)會(huì)議論文 前4條
1 李揚(yáng);陳燦;;無線寬帶在電力系統(tǒng)的應(yīng)用[A];2012電力行業(yè)信息化年會(huì)論文集[C];2012年
2 董潔;闞潤(rùn)田;;無線寬帶構(gòu)建智慧城市[A];2009年全國(guó)無線電應(yīng)用與管理學(xué)術(shù)會(huì)議論文集[C];2009年
3 仝杰;馬曉明;楊鳳忠;劉曉光;;TD-LTE構(gòu)建電力無線寬帶專網(wǎng)的探討與實(shí)踐[A];2012年電力通信管理暨智能電網(wǎng)通信技術(shù)論壇論文集[C];2013年
4 宋靜;孟慶鼐;;數(shù)字MMDS技術(shù)及其應(yīng)用和發(fā)展[A];全國(guó)第十五屆計(jì)算機(jī)科學(xué)與技術(shù)應(yīng)用學(xué)術(shù)會(huì)議論文集[C];2003年
相關(guān)重要報(bào)紙文章 前10條
1 張亞男;新區(qū)居民年內(nèi)先享無線寬帶[N];北方經(jīng)濟(jì)時(shí)報(bào);2007年
2 赫澄;無線寬帶 漸成城市基礎(chǔ)設(shè)施[N];中國(guó)國(guó)門時(shí)報(bào);2006年
3 張彤;無線寬帶獲得更大話語權(quán)[N];網(wǎng)絡(luò)世界;2006年
4 本報(bào)記者 雷注發(fā);政府決策給出強(qiáng)烈信號(hào) 中國(guó)迎來無線寬帶元年[N];通信信息報(bào);2008年
5 楊劍;四大因素將推無線寬帶市場(chǎng)爆發(fā)[N];通信信息報(bào);2008年
6 記者 彭磊 實(shí)習(xí)生 李子琳 通訊員 王云鶴;江城無線寬帶建設(shè)提速[N];湖北日?qǐng)?bào);2008年
7 周曉慷;整合資源,發(fā)掘“無線”價(jià)值[N];人民郵電;2008年
8 記者 莊培帥;主城區(qū)無線寬帶全覆蓋[N];揚(yáng)州日?qǐng)?bào);2008年
9 記者 鐘秀玲;我區(qū)八地市開通無線寬帶3G網(wǎng)絡(luò)[N];新疆日?qǐng)?bào)(漢);2009年
10 記者 潘靜 通訊員 余媛媛;主城區(qū)將實(shí)現(xiàn)無線寬帶覆蓋[N];蚌埠日?qǐng)?bào);2009年
相關(guān)碩士學(xué)位論文 前6條
1 祁冬;山東聯(lián)通有線與無線寬帶融合技術(shù)的研究[D];南京郵電大學(xué);2011年
2 李文;無線寬帶定位網(wǎng)絡(luò)中的資源分配優(yōu)化研究[D];哈爾濱工業(yè)大學(xué);2014年
3 劉蓉;陜西移動(dòng)校園TD-SCDMA+WLAN無線寬帶覆蓋技術(shù)研究[D];西安電子科技大學(xué);2011年
4 尤雪嬌;VoIP技術(shù)在應(yīng)急無線寬帶網(wǎng)終端系統(tǒng)中的應(yīng)用與研究[D];哈爾濱工業(yè)大學(xué);2008年
5 王樂;基于WiMAX的無線寬帶校園網(wǎng)的研究與實(shí)現(xiàn)[D];南昌大學(xué);2007年
6 萬程;IPv6下有線無線寬帶統(tǒng)一接入控制器的軟件架構(gòu)與實(shí)現(xiàn)[D];蘭州大學(xué);2007年
,本文編號(hào):2289148
本文鏈接:http://sikaile.net/kejilunwen/wltx/2289148.html