多信道認(rèn)知無線電頻譜感知次用戶和功率分配
發(fā)布時間:2018-09-07 10:10
【摘要】:為提高多信道認(rèn)知無線電的吞吐量,提出了協(xié)作頻譜感知子信道次用戶和傳輸功率的聯(lián)合分配算法.該算法基于主用戶的存在狀態(tài),在約束次用戶協(xié)作檢測概率和總功率的基礎(chǔ)上,以最大化次用戶所有子信道的吞吐量總和為目標(biāo),通過交替方向優(yōu)化獲得子信道次用戶和傳輸功率的聯(lián)合分配.仿真結(jié)果表明:文中提出的聯(lián)合分配算法通過較少的迭代次數(shù)就可以獲得最優(yōu)值,并且能夠根據(jù)子信道狀態(tài)動態(tài)地分配子信道次用戶和傳輸功率,提高了次用戶的吞吐量.
[Abstract]:In order to improve the throughput of multi-channel cognitive radio, a cooperative spectrum sensing sub-channel sub-user and transmission power allocation algorithm is proposed. Based on the existing state of the primary user, the algorithm aims at maximizing the total throughput of all subchannels of the secondary user on the basis of constrained cooperative detection probability and total power of the secondary user. The joint allocation of subchannel secondary users and transmission power is obtained by alternating direction optimization. Simulation results show that the proposed joint allocation algorithm can obtain the optimal value by less iterations, and can dynamically allocate sub-channel secondary users and transmission power according to the sub-channel state, thus improving the throughput of secondary users.
【作者單位】: 南京航空航天大學(xué)航天學(xué)院;
【基金】:國家自然科學(xué)基金資助項目(61102069,61301105) 南京航空航天大學(xué)引進(jìn)人才科研啟動基金資助項目(56YAH13029) 南京航空航天大學(xué)青年科技創(chuàng)新基金資助項目(NS2013085)
【分類號】:TN925
[Abstract]:In order to improve the throughput of multi-channel cognitive radio, a cooperative spectrum sensing sub-channel sub-user and transmission power allocation algorithm is proposed. Based on the existing state of the primary user, the algorithm aims at maximizing the total throughput of all subchannels of the secondary user on the basis of constrained cooperative detection probability and total power of the secondary user. The joint allocation of subchannel secondary users and transmission power is obtained by alternating direction optimization. Simulation results show that the proposed joint allocation algorithm can obtain the optimal value by less iterations, and can dynamically allocate sub-channel secondary users and transmission power according to the sub-channel state, thus improving the throughput of secondary users.
【作者單位】: 南京航空航天大學(xué)航天學(xué)院;
【基金】:國家自然科學(xué)基金資助項目(61102069,61301105) 南京航空航天大學(xué)引進(jìn)人才科研啟動基金資助項目(56YAH13029) 南京航空航天大學(xué)青年科技創(chuàng)新基金資助項目(NS2013085)
【分類號】:TN925
【參考文獻(xiàn)】
相關(guān)期刊論文 前2條
1 劉鑫;譚學(xué)治;;基于分?jǐn)?shù)傅里葉變換的認(rèn)知無線電抗干擾系統(tǒng)[J];華南理工大學(xué)學(xué)報(自然科學(xué)版);2010年01期
2 張國斌;馮穗力;柯峰;;一種認(rèn)知無線電系統(tǒng)中最優(yōu)的功率分配算法[J];華南理工大學(xué)學(xué)報(自然科學(xué)版);2011年05期
【共引文獻(xiàn)】
相關(guān)期刊論文 前2條
1 張愛民;梁書劍;馬志強;付健;;軍事通信抗干擾技術(shù)進(jìn)展綜述[J];通信技術(shù);2011年08期
2 王業(yè)勝;季薇;侯曉峗;;認(rèn)知OFDM系統(tǒng)中一種改進(jìn)的注水功率分配算法[J];計算機技術(shù)與發(fā)展;2013年01期
相關(guān)博士學(xué)位論文 前2條
1 唐s,
本文編號:2227960
本文鏈接:http://sikaile.net/kejilunwen/wltx/2227960.html
最近更新
教材專著