计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2010年
10期
11-13,27
,共4页
信道容量%同频干扰%干扰噪声比%多输入多输出
信道容量%同頻榦擾%榦擾譟聲比%多輸入多輸齣
신도용량%동빈간우%간우조성비%다수입다수출
channel capacity%co-channel interference%interference to noise ratio%multiple input multiple output
针对多用户环境下的多输入多输出(MIMO)系统容量问题,分别分析了同频干扰功率一定时,多干扰用户,小功率发射和少干扰用户,高功率发射对系统容量的影响,给出了两种条件下,系统容量与干扰用户数目以及干扰噪声比的函数关系.最后用蒙特卡洛方法仿真了系统的中断容量,并与不同情况下中断容量的理论曲线相比较,得出了干扰用户数目,干扰用户天线数目以及INR与系统中断容量的关系,用以指导MIMO系统级设计.
針對多用戶環境下的多輸入多輸齣(MIMO)繫統容量問題,分彆分析瞭同頻榦擾功率一定時,多榦擾用戶,小功率髮射和少榦擾用戶,高功率髮射對繫統容量的影響,給齣瞭兩種條件下,繫統容量與榦擾用戶數目以及榦擾譟聲比的函數關繫.最後用矇特卡洛方法倣真瞭繫統的中斷容量,併與不同情況下中斷容量的理論麯線相比較,得齣瞭榦擾用戶數目,榦擾用戶天線數目以及INR與繫統中斷容量的關繫,用以指導MIMO繫統級設計.
침대다용호배경하적다수입다수출(MIMO)계통용량문제,분별분석료동빈간우공솔일정시,다간우용호,소공솔발사화소간우용호,고공솔발사대계통용량적영향,급출료량충조건하,계통용량여간우용호수목이급간우조성비적함수관계.최후용몽특잡락방법방진료계통적중단용량,병여불동정황하중단용량적이론곡선상비교,득출료간우용호수목,간우용호천선수목이급INR여계통중단용량적관계,용이지도MIMO계통급설계.
Based on multi-user Multiple Input Multiple Output(MIMO) systems,the impact of a few interferers each with high power and a large number of interferers each with low power on system capacity with fixed co -channel interference power are analyzed.Then the system capacities as a function of the number of interference users and Interference-Noise Ratio(INR) under the two above conditions are given.Finally,Monte Carlo simulations are done to simulate the system capacities which are compared with the theory system capacities under different conditions.The results show the relationships between outage capacities and the number of interference users .transmit antennas of each interference user and INR,which can act as a guidance in MI-MO system design.
