發(fā)布時間：2018-01-24 04:17

  本文關(guān)鍵詞： 多業(yè)務(wù)終端 協(xié)同學(xué) QoS滿意率 網(wǎng)絡(luò)選擇　出處：《電信科學(xué)》2017年04期 　論文類型：期刊論文

【摘要】：終端接入的網(wǎng)絡(luò)需要滿足各類業(yè)務(wù)需求,對此提出了一種基于協(xié)同學(xué)的異構(gòu)無線網(wǎng)絡(luò)選擇算法。該算法將終端網(wǎng)絡(luò)選擇看作一個系統(tǒng)化的問題,可選網(wǎng)絡(luò)是一個復(fù)合系統(tǒng),終端上運(yùn)行的每一種業(yè)務(wù)都是一個子系統(tǒng),依據(jù)熵的概念得到復(fù)合系統(tǒng)的熵值,熵值的大小反映了子系統(tǒng)之間的協(xié)同度,進(jìn)而體現(xiàn)了網(wǎng)絡(luò)的整體性能。仿真結(jié)果表明,在終端多業(yè)務(wù)的情況下,基于所提算法選擇的網(wǎng)絡(luò)業(yè)務(wù)QoS滿意率達(dá)到了95%,比基于TOPSIS算法選擇的網(wǎng)絡(luò)業(yè)務(wù)QoS滿意率提升了近4倍,能夠很好地解決多業(yè)務(wù)終端網(wǎng)絡(luò)選擇問題。
[Abstract]:The terminal access network needs to meet the needs of various services. A heterogeneous wireless network selection algorithm based on Synergetics is proposed, which regards terminal network selection as a systematic problem. The optional network is a composite system, each service running on the terminal is a subsystem. According to the concept of entropy, the entropy value of the composite system is obtained, and the magnitude of the entropy value reflects the degree of cooperation between the subsystems. The simulation results show that the QoS satisfaction rate of network services selected based on the proposed algorithm is up to 95% in the case of multi-terminal services. The satisfaction rate of QoS based on TOPSIS algorithm is nearly four times higher than that of QoS, which can solve the problem of multi-service terminal network selection.
【作者單位】： 南京郵電大學(xué)通信與信息工程學(xué)院;東南大學(xué)移動通信國家重點(diǎn)實(shí)驗(yàn)室;南京郵電大學(xué)江蘇省無線通信重點(diǎn)實(shí)驗(yàn)室;
【基金】：國家自然科學(xué)基金資助項(xiàng)目(No.61571234,No.61631020) 東南大學(xué)移動通信國家重點(diǎn)實(shí)驗(yàn)室開放研究基金資助課題(No.2015D10)~~
【分類號】：TN92
【正文快照】： 1引言隨著無線通信系統(tǒng)的發(fā)展,異構(gòu)性已成為下一代無線網(wǎng)絡(luò)最重要的特點(diǎn)之一。在異構(gòu)無線網(wǎng)絡(luò)中,通過融合不同的無線接入技術(shù),網(wǎng)絡(luò)覆蓋范圍、移動性支持、帶寬和價格等資源可以相互得到補(bǔ)充,用戶可以選擇合適的網(wǎng)絡(luò)獲得最滿意的服務(wù)質(zhì)量(quality of service,Qo S),因此,網(wǎng)絡(luò)選，

本文編號：1459154