摘要
LTE-A和第五代(5G)移动通信系统具有更高的数据传输速率,需要更高阶的基带调制技术。256QAM高阶基带调制技术具有更高的数据传输速率和频率利用率,是LTE-A和5G的重要选择。本文在分析256QAM调制解调原理后,从理论上分析了256QAM的误码率和能量利用率,指出了256QAM的优缺点,可为了解新一代移动通信技术提供帮助。
LTE-A and the fifth generation（5G） mobile communication system to have higher data transmit rate and transmit bandwidth. The 256 QAM Baseband Modulation have higher data rate and frequency utilization, is the important choice of LTE-A and 5G. After analyzing a 256 QAM modulation principle, analyzed the BER and energy utilization of256 QAM from the theory rate, pointed out the strongpoint and shortcoming of 256 QAM, which can provide a help for the new generation mobile communication technique.
出处
《电信网技术》
2015年第11期57-61,共5页
Telecommunications Network Technology
关键词
256QAM
基带调制
误码率
能量利用率
256 level quadrature amplitude modulation
baseband modulation
bit error rate
energy utilization
