混合正交SFHMA数字蜂窝系统反向链路中BFSK、DPSK和π/4DQPSK误码特性的研究  

Performance of BFSK,DPSK and π/4DQPSK in Up Links of Mixed Orthogonal SFHMA Cellular Systems

作　　者：李恩家[1] 项海格[1] 

机构地区：[1]北京大学电子学系,北京100871

出　　处：《通信学报》1999年第S1期258-262,共5页Journal on Communications

摘　　要：本文对BFSK、DPSK和π/4DQPSK三种调制方式在混合正交SFHMA数字蜂窝系统反向链路中的多址干扰进行了分析,并对误码特性进行了仿真。结果表明,在无衰落和理想功率控制条件下,DPSK在三种调制方式中具有最高的频带效率。In this paper, the char(?)risrics of multiple access interference in up links of mixed or thogonal slow frequency hopping(SFH)digital cellular systems is analyzed,and the BER perfor mance of BFSK.DPSK and π/4DQPSK is simulated. The result shows that DPSK is more efficient than BFSK and π/4DQPSK,given that the signal does not suffer from channel fading and perfect power control is used.

关 键 词：慢跳频 多址干扰 卷积编码 仿真 

分 类 号：TN929.53[电子电信—通信与信息系统]