Random multiple access (RMA) protocols comprise an important class for the accessing/signaling stage in multimedia ATM wireless networks. Within the RMA class, the ALOHA algorithm is most widely used, while, as is well known, the latter algorithm becomes unstable, as the user population increases. We consider the part-and-try algorithm, instead, for a system with different priorities. Based on this algorithm, we construct a mixed priority protocol whose total throughput for all priorities combined equals 0.487. In the special and important ATM case of two, low- and high-priorities, with respective Poisson intensities /spl lambda//sub L/ and /spl lambda//sub H/. We also present an analytical methodology which allows the computation of the average packet delays as the functions of the rates /spl lambda//sub L/ and /spl lambda//sub H/.
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机译：随机多路访问（RMA）协议是多媒体ATM无线网络中访问/信令阶段的重要类别。在RMA类中，ALOHA算法使用最广泛，而众所周知，后一种算法随着用户数量的增加而变得不稳定。对于具有不同优先级的系统，我们考虑采用分批尝试算法。基于此算法，我们构造了一个混合优先级协议，该协议的所有优先级总吞吐量合计为0.487。在具有两个低优先级和高优先级的特殊且重要的ATM情况下，它们的泊松强度分别为/ spl lambda // sub L /和/ spl lambda // sub H /。我们还提出了一种分析方法，该方法允许根据/ spl lambda // sub L /和/ spl lambda // sub H /的速率来计算平均数据包延迟。
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