GSM AMR编解码器的滞后分析

International Conference on Instrumentation, Communication, Information Technology, and Biomedical Engineering 2009 Pub Date : 2009-11-01 DOI:10.1109/ICICI-BME.2009.5417284

Amelia Redita, H. Kanalebe, K. Gandi

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引用次数: 0

摘要

GSM系统上的AMR编解码器可以使信道容量增加75%。然而，信道容量的增加会降低语音质量或中断概率。信道容量与接收信号的迟滞范围有很大关系。适当调整迟滞范围可以显著降低切换概率，使通信链路不会受到严重影响。在一定的迟滞范围内，迟滞值每增加1 dB，切换概率降低7%

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Analysis of hysteresis on GSM AMR Codec

AMR Codec on GSM system can increase the channel capacity up to 75%. However, the increasing of channel capacity can decrease the speech quality or outage probability. The channel capacity has a strong relation with hysteresis range of the received signal. A proper hysteresis range adjustment may reduce handover probability significantly, so that the communication link will not seriously affected. For a certain hysteresis range, every 1 dB increasing in hysteresis value can make the handover probability of 7% lower

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International Conference on Instrumentation, Communication, Information Technology, and Biomedical Engineering 2009

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