Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 1999.11a
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- Pages.97-100
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- 1999
Performance Evaluation of AAL-2 by using voice CODEC Standard
음성 부호화 표준안에 따른 AAL-2의 성능 분석
Abstract
Mobile network applications are growing and this requires a fast and efficient transport method between the BS(Base Station) and the MSC(Mobile Switching Center). One possible solution is to use ATM and a voice CODEC standard which compresses 64kbps voice data to less than 8kbps. The low bit tate and small-sized packets made by the voice CODEC imply that significant amount of link bandwidth would be wasted, if this small-sized packet is carried by one ATM cell. The cell assembly delay increases if one ATM cell is fully filled with the small-sized packets. For the bandwidth-efficient transmission of low-rate, short, and variable length packets in delay sensitive applications, AAL-2 was standardized. This paper evaluates performance of AAL-2 by using voice CODEC standard.
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