基于功率和傾角聯(lián)合優(yōu)化的小區(qū)中斷補償機制
doi: 10.11999/JEIT140935
基金項目:
國家自然科學(xué)基金(61271187)，國家863計劃項目(2014AA01A701)和中央高?；究蒲袠I(yè)務(wù)資助(BUPT2014 RC1104)資助課題
A Cell Outage Compensation Mechanism Based on Joint Optimization of Power and Tilt
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摘要: 為了實現(xiàn)對中斷小區(qū)的自主補償，該文基于自組織網(wǎng)絡(luò)(SON)提出功率和傾角聯(lián)合優(yōu)化調(diào)整的小區(qū)中斷補償(COC)機制。首先以天線傾角和發(fā)射功率作為優(yōu)化對象，然后對COC定義了合理的優(yōu)化目標及評價指標，并對優(yōu)化模型進行分析，最終給出基于遺傳優(yōu)化算法的補償機制。在分時長期演進(TD-LTE)場景中進行仿真驗證，該機制與參考文獻中的3種算法相比，在覆蓋、干擾和吞吐量等方面均有明顯的改善。
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關(guān)鍵詞:
- 自組織網(wǎng)絡(luò) /
- 小區(qū)中斷補償 /
- 傾角和功率聯(lián)合調(diào)整 /
- 遺傳算法
Abstract: In order to compensate the outage cell autonomously, this paper derives a solution for Cell Outage Compensation (COC) in Self-Organizing Networks (SON) which is based on the joint adjustment of power and tilt. Firstly, the paper takes the power and tilt as the optimization objects. Then it defines the rational objectives and the evaluation index of the COC, and analyzes the optimization model. Finally, the compensation mechanism based on the Genetic optimization Algorithm (GA) is proposed. The simulation results under the Time Division Long Term Evolution (TD-LTE) scenario show that the proposed solution is better than other three methods in terms of the coverage, interference, and throughput. -
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