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目前ATM论坛尚未制订出适配VBRMPEG 2业务的相关规范 ,因此多数应用仍然采用AAL5适配VBRMPEG 2业务。通过分析和仿真研究 ,我们发现AAL5适配VBRMPEG 2业务的性能比较差。因此我们提出了用AAL0适配VBRMPEG 2业务 ,并给出了相应的适配算法描述。仿真结果表明AAL0适配VBRMPEG 2业务的性能明显高于前者
At present, ATM Forum has not yet formulated the relevant specifications for adapting VBRMPEG 2 services, so most applications still use AAL5 to adapt VBRMPEG 2 services. Through analysis and simulation studies, we found that AAL5 adapts to VBRMPEG 2 services with poor performance. Therefore, we propose to adapt AAL0 to VBRMPEG2 service and provide the corresponding description of adaptation algorithm. The simulation results show that the performance of AAL0 adapting VBRMPEG 2 service is obviously higher than the former