| 按需分配多码CDMA及其吞吐量性能的研究 |
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| 引用本文： | 马逾钢,洪福明,李乐民.按需分配多码CDMA及其吞吐量性能的研究[J].电子科技大学学报(社会科学版),1997(5). |
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| 作者姓名： | 马逾钢 洪福明 李乐民 |
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| 作者单位： | 电子科技大学抗干扰通信技术国防重点实验室 |
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| 摘 要： | 设计了一种能在射频带宽受限的情况下提供高峰值速率传送，适用于无线环境多业务网（无线ＡＴＭ网）的介质访问控制协议：按需分配多码ＣＤＭＡ（ＭＣ－ＣＤＭＡ）。描述了该协议的信号调制、解调及并发码数分配方案。建立了采用按需分配ＭＣ－ＣＤＭＡ的单小区无线通信网的系统模型，定义了系统吞吐量，并在单小区无线通信网中分析了按需分配ＭＣ－ＣＤＭＡ的吞吐量性能，给出了吞吐量与接收要求的比特能量噪声密度比、并发码数、处理增益及扇区数的关系。
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| 关 键 词： | 码分多址 介质访问控制 无线异步转移模式 通信系统容量 |
Dynamic Assignment Multi code CDMA and Its Throughput Performance |
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| Ma Yugang,Hong Fuming,Li Lemin.Dynamic Assignment Multi code CDMA and Its Throughput Performance[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),1997(5). |
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| Authors: | Ma Yugang Hong Fuming Li Lemin |
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| Abstract: | In this paper,a wireless MAC protocol:dynamic assignment multi code CDMA is presented,which is much better than common CDMA for wireless multiple services networks (wireless ATM networks) because of transporting higher rate data without extra bandwidth.The architecture of dynamic assignment MC CDMA single cell synchronic system is also displayed and its throughput versus (E b/N 0) r,M, spread factor( G ) and sectors are analyzed. |
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| Keywords: | code division multiple access media access control wireless asynchronous transfer mode capacity of communication system |
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