超密集網(wǎng)基于干擾公平及多維協(xié)作的虛擬小區(qū)生成算法
發(fā)布時(shí)間:2018-06-19 04:40
本文選題:超密集網(wǎng)絡(luò) + 虛擬小區(qū) ; 參考:《電信科學(xué)》2017年09期
【摘要】:在超密集網(wǎng)絡(luò)場景中,小區(qū)密度持續(xù)增加使得干擾關(guān)系更加復(fù)雜,重疊虛擬小區(qū)結(jié)構(gòu)使得資源分配深度耦合,導(dǎo)致虛擬小區(qū)選擇成為影響系統(tǒng)性能的因素之一。為此,針對(duì)虛擬小區(qū)邊權(quán)重設(shè)計(jì),采用聯(lián)合資源分配前置化思想,提出一種綜合了干擾公平功率分配、MU-MIMO配對(duì)及協(xié)作傳輸諸增益因素的權(quán)重方案。針對(duì)虛擬小區(qū)成簇,基于提出的權(quán)重設(shè)計(jì)準(zhǔn)則,通過最大權(quán)重成對(duì)小區(qū)成簇算法實(shí)現(xiàn)虛擬小區(qū)可重疊成簇。仿真結(jié)果表明,提出的虛擬小區(qū)生成算法可在低計(jì)算復(fù)雜度的前提下保證系統(tǒng)性能的改善。
[Abstract]:In the super-dense network scenario, the continuous increase of cell density makes the interference relationship more complex, and the overlapping virtual cell structure makes the resource allocation deeply coupled, leading to the selection of virtual cell as one of the factors affecting the performance of the system. Aiming at the edge weight design of virtual cell, a new weighting scheme which combines the gain factors of interference fair power allocation and cooperative transmission is proposed by using the idea of joint resource allocation prepositioning. For virtual cell clustering, based on the proposed weight design criterion, the maximum weight pair cell clustering algorithm is used to realize virtual cell overlapping clustering. Simulation results show that the proposed virtual cell generation algorithm can guarantee the improvement of system performance with low computational complexity.
【作者單位】: 西安郵電大學(xué)通信與信息工程學(xué)院;
【分類號(hào)】:TN929.5
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本文編號(hào):2038489
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