基于主码同步的高效声控CDMA移动通信系统

IEEE Global Telecommunications Conference, 1989, and Exhibition. 'Communications Technology for the 1990s and Beyond Pub Date : 1989-11-27 DOI:10.1109/GLOCOM.1989.64064

R. De Gaudenzi, R. Viola

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引用次数: 9

摘要

作者提出了一种基于码分多址(CDMA)的创新型话音(和数据)服务移动系统。该系统利用语音激活来提高CDMA效率(有用的传输信息与占用的带宽)。通过在转发链路中分配主码，在未检测到语音活动时在返回链路中使用强制链接激活来解决同步问题。通过与集中网络控制相结合的多速率语音编码，使阻塞概率最小化。误码率计算显示了在同步模式下工作的所有优点

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High efficiency voice activated CDMA mobile communication system based on master code synchronization

The authors propose an innovative code division multiple access (CDMA)-based mobile system for voice (and data) services. The system makes use of voice activation in order to increase the CDMA efficiency (useful transmitted information vs. occupied bandwidth). The synchronization problems are solved by distributing a master code in the forward link and using forced link activation in the return when no speech activity is detected. The blocking probability is minimized by means of multirate speech coding associated with a centralized network control. Bit error rate calculations show all the advantages of operating in a synchronous mode.<>

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来源期刊

IEEE Global Telecommunications Conference, 1989, and Exhibition. 'Communications Technology for the 1990s and Beyond

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