论文部分内容阅读
按需分配地使用卫星的分组无线电设计方案能得到高的带宽利用率。但在低业务量情况下与随机访问传输相比较延迟性能较差。本文提出了改进的按需分配方案,该方案允许等候信道分配的用户随机访问传输,从而改善低业务量下的延迟性能。这个方案在低业务量情况下,与时隙式ALOHA相比较,提供了较小的平均时延和较低的带宽利用率。该方案有可能应用于负载量波动较大的场合,因而具有潜在应用价值。
Packet-on-demand packet radio designs that use satellites deliver high bandwidth utilization. However, in the case of low traffic and random access transmission delay performance is poor. This paper proposes an improved on-demand allocation scheme that allows users waiting for channel assignment to randomly access the transmission, thereby improving the delay performance at low traffic. This scheme provides lower average latency and lower bandwidth utilization compared to slotted ALOHA at low traffic. The program may be applied to load fluctuations in the larger occasions, which has potential applications.