| 混合噪声环境下的CDMA抗多址干扰性能 |
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| 引用本文： | 张成榆,刘人杰. 混合噪声环境下的CDMA抗多址干扰性能[J]. 大连海事大学学报(自然科学版), 2005, 31(4): 79-82 |
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| 作者姓名： | 张成榆 刘人杰 |
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| 作者单位： | 大连海事大学,信息工程学院,辽宁,大连,116026;中国网通大连分公司,计划建设部,辽宁,大连,116001;大连海事大学,信息工程学院,辽宁,大连,116026 |
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| 摘 要： | 研究了预去相关及线性单用户检测抗多址干扰技术．由于线性单用户检测抗多址干扰CDMA接收机的解调序列不等同于特征序列本身，考虑到移动通信环境中载波相位的跟踪和估计有时很困难，提出了在混合噪声环境下，差分相干同步CDMA信道中的线性单用户检测抗多址干扰技术的系统结构、算法及特性．提出变革传统CDMA结构及算法的方法，使得系统具有抗多址干扰能力，从而使系统的容量极大化．
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| 关 键 词： | 码分多址 混合噪声 抗多址干扰 |
| 收稿时间： | 2005-04-11 |
| 修稿时间： | 2005-04-11 |
CDMA anti-MAI performance in a mixed noise environment |
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| ZHANG Cheng-yu,LIU Ren-jie. CDMA anti-MAI performance in a mixed noise environment[J]. Journal of Dalian Maritime University, 2005, 31(4): 79-82 |
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| Authors: | ZHANG Cheng-yu LIU Ren-jie |
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| Affiliation: | 1. Information Eng. College, Dalian Maritime Univ. ,Dalian 2. Planning Construction Dept. ,China Netcom Corp. Dalian Branch, 116026, China; Dalian 116001, China |
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| Abstract: | The technology of pre-decorrelation and linear single-user detection anti-MAI were introduced. Because the demodulation sequence of the linear single-user detection anti-MAI CDMA receiver differs from the characteristic sequence itself, considering that it is hard to trace and estimate the carrier phase in the mixed noise environment, this paper provides the system structure, algorithm and features of the linear single-user detection anti-MAI technology in the differentially coherent synchronous CDMA channel. The author introduced a method that transforms the traditional CDMA structure and algorithm, to equip the system with anti-MAI capability. Thus, the system capacity can be maximized. |
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| Keywords: | code division multiple access mixed noise multiple access interference |
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