计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2010年
7期
80-82
,共3页
闭环功率控制%信噪比%功率控制命令
閉環功率控製%信譟比%功率控製命令
폐배공솔공제%신조비%공솔공제명령
Closed-Loop Power Control(CLPC)%Signal-to-Interference Ratio(SIR)%Transmit Power Control(TPC)
提出了一种新的自适应变步长的联合闭环功率控制方法,分别根据信噪比(SIR)的差值产生粗调因子和功率控制命令(TPC)的历史记录产生微调因子来跟踪信道的快慢衰落.仿真结果表明,该算法提高了收敛速度和收敛精度,具有较好的适用价值.
提齣瞭一種新的自適應變步長的聯閤閉環功率控製方法,分彆根據信譟比(SIR)的差值產生粗調因子和功率控製命令(TPC)的歷史記錄產生微調因子來跟蹤信道的快慢衰落.倣真結果錶明,該算法提高瞭收斂速度和收斂精度,具有較好的適用價值.
제출료일충신적자괄응변보장적연합폐배공솔공제방법,분별근거신조비(SIR)적차치산생조조인자화공솔공제명령(TPC)적역사기록산생미조인자래근종신도적쾌만쇠락.방진결과표명,해산법제고료수렴속도화수렴정도,구유교호적괄용개치.
A new adaptive variable-step joint Closed-Loop Power Control(CLPC) algorithm based on the errors of Signal-to-Interference Ratio(SIR) and the history memories of Transmit Power Control(TPC) command bits is proposed which respectively brings wide and minute factor to track the channel degradation.Simulations results show convergence speed and precision of the algorithm is improved compared with conventional methed.It can be applied to realistic systems.
