发射端功率控制对MQAM系统误码率性能的改善

Improvement of BER Performance of MQ AM Using Transmit Adaptive Power Control

自适应发射功率控制是无线通信领域中减小系统误码率、增加系统吞吐量的一项有效技术。对发射端功率控制下MQAM系统的误码率性能进行了研究,得到了MQAM调制时近似最优化的功率分配方案。理论曲线显示,发射端采用功率控制的系统误码率性能将得到一定程度的改善。

Adaptive power control is an effective technique in re ducing BER and enhancing system throughput.Here we focus on the BER performanc e of MAQM b y transmit power control policy and d erive the approximately optima l policy of MQAM modulation.The theoretic curves sh ow that the BER performance has been i mproved by this strategy.