TD-HSDPA論文：TD-HSDPA自適應(yīng)調(diào)制編碼分組調(diào)度算法

1、TD-HSDPA論文：TD-HSDPA 自適應(yīng)調(diào)制編碼分組調(diào)度算法【中文摘要】TD-HSDP 是第三代移動通信標(biāo)準(zhǔn) TD-SCDM 的增強(qiáng) 型技術(shù),引入其的是為了應(yīng)對日益增長的數(shù)據(jù)通信業(yè)務(wù)，提高系統(tǒng)的 數(shù)據(jù)吞吐量和競爭力。為了實(shí)現(xiàn)高速數(shù)據(jù)通信的目標(biāo)，在 TD-HSDPA 系 統(tǒng)中引入HARQ MIMO 等新技術(shù)。本文主要研究了兩種自適應(yīng)調(diào)制編 碼技術(shù),第一種是基于探索的自適調(diào)制編碼技術(shù)，它根據(jù)的誤幀率和 重傳次數(shù)信息來決定調(diào)制編碼方式；第二種是基于信道估計預(yù)測的自 適應(yīng)調(diào)制編碼技術(shù)，它根據(jù)信道信噪比預(yù)測的結(jié)果調(diào)節(jié)調(diào)制編碼方 案。本文對上述兩種自適應(yīng)調(diào)制編碼策略進(jìn)行仿真，分析了各自的優(yōu)缺點(diǎn)。在研

2、究了分組調(diào)度算法時對三種經(jīng)典分組調(diào)度算法進(jìn)行了仿真 比較,對經(jīng)典 PF 算法進(jìn)行了改進(jìn)，仿真表明改進(jìn)的 PF 算法提高了吞吐 量和公平性?！居⑽恼縏D-HSDPAs an enhanced technology of TD-SCDMA,which is one of the third gen erati on mobile com muni cati on sta ndards,aiming at satisfy ing the ever- in creas ing data com muni cati on serviceand in creas ing the throughput

3、and competitive ness. To achieve the goalof high-speed data communication, technologies such like AMC, HARQand MIMO are in troduced to the TD-HSDPA systems.This articleperformed an inv estigati on on two self-adaptive cod ing tech no logies; thefirst one is based on exploration, which determines cod

4、ingmethod according to the rate of the error frames and the number of retransmissi on;the sec ond self-adaptive codi ng tech no logyis based on the predicati on of cha nn el, which adjusts codi ng methodsaccord ing to the SNR. Both en codi ng schemes are investigated by thesimulation to analyze thei

5、r respectivemerits and drawbacks.Three classicalgrouping algorithms werecompared by the research; improveme nts are con ducted to the classicalPF algorithm. Simulatio n dem on strated that thethroughput and fair ness are improved.【關(guān)鍵詞】TD-HSDPA 自適應(yīng)調(diào)制編碼分組調(diào)度算法【采買全文廣廣】139.938848 1.381.1372.1同時提供論文寫作定制和論

6、文發(fā)表服務(wù).保過包發(fā).【說明】本文僅為中國學(xué)術(shù)文獻(xiàn)總庫合作提供，無涉版權(quán)。作者如有異議請與總庫或?qū)W校聯(lián)系?！居⑽年P(guān)鍵詞】TD-HSDPA AMC Packetscheduli ngalgorithm【目錄】基于 TD-HSDPA!統(tǒng)中 AMC 技術(shù)及信道算法研究摘要4-5ABSTRACT目錄 6-7 第一章緒論 7-111.1 引言71.2 TD HSDP 演進(jìn)過程 7-81.3 課題目的和意義8-91.4 論文內(nèi)容及安排 9-11 第二章 TD-HSDPA 的物理層結(jié)構(gòu) 11-222.1 新增信道 11-162.2 HSDPA 物理層結(jié)構(gòu)16-182.3 HS-DSCH 信道編碼與調(diào)制 18-212.4 本章小結(jié)21-22 第三章 TD-HSDPA 中 AMC 原理及性能分析 22-353.1 AMC原理 22-233.2 探索類自適應(yīng)調(diào)制編碼技術(shù)23-253.3 基于信道信噪比估計的 AMC 技術(shù) 25-343.4 仿真結(jié)果及分析 343.5本章小結(jié) 34-35 第四章 TD-HSDPA 系統(tǒng)中分組調(diào)度法及仿真35-564.1 分組調(diào)度參數(shù)的研究 35-404.2 分組調(diào)度器架構(gòu)40-434.3 分組調(diào)度算法 43-4