時(shí)分波分無(wú)源光網(wǎng)絡(luò)與云無(wú)線接入網(wǎng)聯(lián)合架構(gòu)中負(fù)載平衡的用戶關(guān)聯(lián)與資源分配策略

張鴻; 韓霄; 王汝言; 李職杜; 周敏

doi:10.11999/JEIT200849

時(shí)分波分無(wú)源光網(wǎng)絡(luò)與云無(wú)線接入網(wǎng)聯(lián)合架構(gòu)中負(fù)載平衡的用戶關(guān)聯(lián)與資源分配策略

doi: 10.11999/JEIT200849 cstr: 32379.14.JEIT200849

1.
重慶郵電大學(xué)通信與信息工程學(xué)院重慶 400065
2.
重慶高校市級(jí)光通信與網(wǎng)絡(luò)重點(diǎn)實(shí)驗(yàn)室重慶 400065
3.
泛在感知與互聯(lián)重慶市重點(diǎn)實(shí)驗(yàn)室重慶 400065

基金項(xiàng)目: 國(guó)家自然科學(xué)基金(61771082, 61871062)，重慶市高校創(chuàng)新研究群體(CXQT20017)，重慶市教委科學(xué)技術(shù)研究項(xiàng)目(KJQN201900609, KJQN202000626)，重慶市自然科學(xué)基金重點(diǎn)項(xiàng)目(cstc2020jcyj-zdxmX0024)

詳細(xì)信息

作者簡(jiǎn)介:
張鴻：男，1987年生，博士，研究方向?yàn)槲锫?lián)網(wǎng)、光無(wú)線融合網(wǎng)絡(luò)等

韓霄：男，1996年生，碩士生，研究方向?yàn)楣鉄o(wú)線融合網(wǎng)絡(luò)

王汝言：男，1969年生，教授，博士，研究方向?yàn)榉涸诰W(wǎng)絡(luò)、多媒體信息處理等

李職杜：男，1990年生，博士，研究方向?yàn)檫吘売?jì)算、網(wǎng)絡(luò)演算等

周敏：女，1996年生，碩士生，研究方向?yàn)楣鉄o(wú)線融合網(wǎng)絡(luò)

通訊作者:
王汝言　wangry@cqupt.edu.cn

中圖分類號(hào): TN915; TP393.04
計(jì)量
- 文章訪問數(shù): 808
- HTML全文瀏覽量: 364
- PDF下載量: 50
- 被引次數(shù): 0
出版歷程
- 收稿日期: 2020-09-30
- 修回日期: 2021-01-29
- 網(wǎng)絡(luò)出版日期: 2021-03-02
- 刊出日期: 2021-09-16

Load Balancing User Association and Resource Allocation Strategy in Time and Wavelength Division Multiplexed Passive Optical Network and Cloud Radio Access Network Joint Architecture

1.
School of Telecommunication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
2.
Chongqing Key Laboratory of Optical Communication and Network, Chongqing 400065, China
3.
Chongqing Key Laboratory of Ubiquitous Sensing and Networking, Chongqing 400065, China

Funds: The National Natural Science Foundation of China (61771082, 61871062), The University Innovation Research Group of Chongqing (CXQT20017), The Science and Technology Research Program of Chongqing Municipal Education Commission (KJQN201900609, KJQN202000626), The Natural Science Foundation of Chongqing (cstc2020jcyj-zdxmX0024)

摘要

摘要: 在時(shí)分波分無(wú)源光網(wǎng)絡(luò)(TWDM-PON)與云無(wú)線接入網(wǎng)(C-RAN)的聯(lián)合架構(gòu)中，由于無(wú)線域的負(fù)載不均衡問題，限制了網(wǎng)絡(luò)整體的傳輸效率。為了充分利用TWDM-PON與C-RAN聯(lián)合架構(gòu)的網(wǎng)絡(luò)資源，并保證用戶的服務(wù)質(zhì)量(QoS)，該文提出一種負(fù)載平衡的用戶關(guān)聯(lián)與資源分配算法(LBUARA)。首先根據(jù)不同用戶的服務(wù)質(zhì)量需求以及分布式無(wú)線射頻頭端(RRH)的負(fù)載對(duì)用戶的影響，構(gòu)建用戶收益函數(shù)。進(jìn)而，在保證用戶服務(wù)質(zhì)量的前提下，根據(jù)網(wǎng)絡(luò)狀態(tài)建立隨機(jī)博弈模型，并基于多智能體Q學(xué)習(xí)提出負(fù)載均衡的用戶關(guān)聯(lián)和資源分配算法，從而獲得最優(yōu)的用戶關(guān)聯(lián)與資源分配方案。仿真結(jié)果表明，所提的用戶關(guān)聯(lián)和資源分配策略能夠?qū)崿F(xiàn)網(wǎng)絡(luò)的負(fù)載均衡，保證用戶的服務(wù)質(zhì)量，并提高網(wǎng)絡(luò)吞吐量。
- 云無(wú)線接入網(wǎng) /
- 時(shí)分波分無(wú)源光網(wǎng)絡(luò) /
- 負(fù)載均衡 /
- 用戶關(guān)聯(lián) /
- 服務(wù)質(zhì)量
Abstract: The load imbalance in the wireless domain limits the overall transmission efficiency of the network in the joint architecture of Time and Wavelength Division Multiplexed Passive Optical Network (TWDM-PON) and Cloud Radio Access Network (C-RAN). A Load Balancing User Association and Resource Allocation (LBUARA) algorithm is proposed to ensure the Quality of Service(QoS) of users, and make full use of network resources TWDM-PON jointly with C-RAN architecture. Firstly, the user revenue function is constructed according to the service quality requirements of different users and the impact of Remote Radio Head (RRH) load on users. Furthermore, a random game model is established according to the network state, under the premise of ensuring the quality of user service. A user association and resource allocation algorithm based on multi-agent Q-learning load balancing is proposed to obtain the optimal user association and resource allocation plan. The simulation results show that users association and resource allocation strategies mentioned can achieve load balancing network to ensure quality of service users, and improve network throughput.
- Cloud Radio Access Network (C-RAN) /
- Time and Wavelength Division Multiplexed Passive Optical Network (TWDM-PON) /
- Load balancing /
- User association /
- Quality of Service (QoS)

HTML全文

圖 1 TWDM-PON與C-RAN聯(lián)合架構(gòu)

下載: 全尺寸圖片幻燈片

圖 2 不同算法的用戶關(guān)聯(lián)狀態(tài)

下載: 全尺寸圖片幻燈片

圖 3 Jain公平性指數(shù)與用戶數(shù)量的關(guān)系

下載: 全尺寸圖片幻燈片

圖 4 不同時(shí)刻的網(wǎng)絡(luò)吞吐量

下載: 全尺寸圖片幻燈片

圖 5 滿足QoS需求的用戶數(shù)量

下載: 全尺寸圖片幻燈片

表 1 負(fù)載均衡的用戶關(guān)聯(lián)和資源分配算法

　(1) 初始化episode，每個(gè)用戶的Q值${Q_i}(s,{a_i})$以及${\phi _i}({s_i},{a_i})$

　(2) for each step of an episode to t steps do

　(3) 　for each UE i do

　(4)　　在狀態(tài)${s_i}$時(shí)通過式(21)選擇動(dòng)作${a_i}$

　(5)　　通過式(7)計(jì)算為每個(gè)用戶分配的RB數(shù)量

　(6)　　通過式(13)計(jì)算V_i

　(7)　　每個(gè)用戶獲取關(guān)聯(lián)狀態(tài)$s'$，設(shè)置 $s' \to s$

　(8)　　通過式(20)更新${Q_i}(s,{a_i})$

　(9)　　更新${\phi _i}({s_i},{a_i})$

　(10)　end for

　(11) if 當(dāng)前狀態(tài)集合$S = \{ 1,1,···,1\} $

　(12)　 break

　(13) end if

　(14) 最終所有的用戶得到關(guān)聯(lián)策略$({s_i},{a_i})$

下載: 導(dǎo)出CSV

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