本文關(guān)鍵詞： 大規(guī)模MIMO 等增益合并 最大比合并 功率收縮　出處：《北京郵電大學(xué)學(xué)報(bào)》2017年05期 　論文類型：期刊論文

【摘要】：在非完美和完美信道狀態(tài)信息(CSI)兩種情況下,對(duì)多小區(qū)大規(guī)模多輸入多輸出(MIMO)上行系統(tǒng)進(jìn)行分析,推導(dǎo)了等增益合并(EGC)方案的可達(dá)速率表達(dá)式,并與最大比合并(MRC)方案進(jìn)行比較.仿真結(jié)果表明,所推導(dǎo)的EGC閉合表達(dá)式與蒙特卡洛仿真結(jié)果相吻合;在非完美CSI且功率收縮因子為0.5的情況和完美CSI且功率收縮因子為1的情況下,隨著天線數(shù)不斷增加,EGC方案的頻譜效率不斷增加,并逐漸趨近于一個(gè)定值,說(shuō)明了大規(guī)模MIMO中的EGC方案如MRC方案一樣也具有有效節(jié)約能量的特點(diǎn).
[Abstract]:In the case of imperfect and perfect channel state information (CSI), the multi-cell large-scale multi-input-multiple-output (Mimo) uplink system is analyzed. The reachability rate expression of equal gain combined EGC scheme is derived and compared with the maximum ratio merging scheme. The derived EGC closed expression is in agreement with the Monte Carlo simulation results. In the case of imperfect CSI with a power contraction factor of 0.5 and a perfect CSI with a power contraction factor of 1, the spectral efficiency of the scheme increases with the increase of antenna number. It is shown that the EGC scheme in large-scale MIMO has the characteristics of energy saving as well as that of MRC scheme.
【作者單位】： 大連海事大學(xué)信息與科學(xué)技術(shù)學(xué)院;
【基金】：高等學(xué)校博士學(xué)科點(diǎn)專項(xiàng)科研基金項(xiàng)目(20132125110006) 中央高�；究蒲袠I(yè)務(wù)費(fèi)專項(xiàng)資金項(xiàng)目(3132016347) 遼寧省自然科學(xué)基金項(xiàng)目(201602086)
【分類號(hào)】：TN919.3
【正文快照】： 在2010年,Marzetta提出了大規(guī)模多輸入多輸出(MIMO,multiple input multiple output)技術(shù)[1],該技術(shù)通過(guò)顯著增加基站端天線數(shù)量,以深度挖掘空間維度無(wú)線資源,能更好地改善小規(guī)模MIMO的性能局限.由于大規(guī)模MIMO在能量效率、頻譜效率、魯棒性和可靠性等方面的巨大優(yōu)勢(shì),目前已成，

本文編號(hào)：1489443