一种适用于电缆通信的自适应比特分配算法An adaptive bit allocation algorithm suitable for cable communication
刘豆豆,刘得军,程星,闫松,王辰
摘要(Abstract)：
在研究电缆通信系统特性的基础上,提出一种新的算法——比例贪婪算法。该算法根据信噪比及信噪比间隔求得功率分配比例系数,然后求得各子信道功率分配方案,再进一步求得离散整数比特及对应功率,最后将因比特取整剩余的功率用贪婪算法逐比特分配,将求得的离散比特分配用于信息的调制与解调。该算法考虑到了信噪比间隔在不同调制方式下的变化,经过Matlab仿真,在相同信噪比条件下该算法的误码率比固定调制方式算法小,并且该算法迭代次数少,计算量小。
关键词(KeyWords)： 信噪比;信噪比间隔;比例贪婪算法;功率分配;电缆通信;自适应
基金项目(Foundation): 国家重大科研装备研制项目:深部资源探测核心装备研发(ZDYZ2012-1-07-02-01)~~
作者(Author): 刘豆豆,刘得军,程星,闫松,王辰
DOI: 10.16652/j.issn.1004-373x.2018.21.005
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