Impact of Statistical Multiplexing on Voice Quality in Cellular Networks
Impact of Statistical Multiplexing on Voice Quality in Cellular Networks
复制标题
统计复用对蜂窝网络语音质量的影响
DOI：
10.1145/346855.346860
复制
发表时间：
2000
影响因子：
1.2
通讯作者：
K. Samaras
中科院分区：
文献类型：
--
作者：
Thomas Enderes;S. Khoo;Clare A. Somerville;K. Samaras
本文研究了蜂窝分组交换网络上的语音传输质量。为了评估前端限幅对语音质量的影响，在各种统计复用场景下对上行链路中的媒体接入机制进行了仿真。此外，在实时演示平台上实现了模拟，该平台用于通过执行平均意见得分(MOS)测试来获取语音质量的主观指标。报告了MOS测试的结果，并对获得的语音样本进行了分析。最后，对研究结果进行了总结，并对仿真工具和语音模型的进一步发展方向进行了展望。
This paper examines the quality of transmission of voice over cellular, packet-switched networks. The medium access mechanism in the uplink is simulated under various statistical multiplexing scenarios in order to assess the effect of front-end clipping on voice quality. Moreover, the simulation is implemented in a real-time demonstration platform utilized to acquire subjective indicators of voice quality by performing Mean Opinion Score (MOS) tests. Results from the MOS tests are reported, and an analysis of the obtained speech samples is presented. Finally, the results are summarized and potential further directions for the simulation tool and the speech models are discussed.