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首页> 外文期刊>International journal of mobile computing and multimedia communications >Prioritization Schemes in Queuing Handoff and New Calls to Reduce Call Drops in Cellular Systems
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Prioritization Schemes in Queuing Handoff and New Calls to Reduce Call Drops in Cellular Systems

机译：排队切换和新呼叫中的优先级分配方案，以减少蜂窝系统中的呼叫丢失

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This paper proposes different queuing scenarios to avoid dropping of handoff and new calls in a cellular phone network, which is essential when the network has certain restrictions on the available frequencies. This limitation degrades the performance of the system and more sites are required to achieve the desired capacity and coverage. However, this leads to a higher percentage of call drops during handoff. This paper presents a queuing technique for both new and handoff calls to reduce the probability of call drop in such a system, leading to improvement in QoS. The proposed scenarios show better system performance. The blocking probability is reduced from 2% down to 0.04% for queuing handoff calls and from 2% to 1.14% when queuing new calls using the same technique. The four different presented approaches are: 1) only new calls are queued; 2) only handoff calls are queued; 3) by using all available channels; 4) by using only half. The queuing size also plays an important role for both new and handoff calls.
机译：本文提出了不同的排队方案，以避免蜂窝电话网络中的切换和新呼叫中断，当网络对可用频率有一定限制时，这是必不可少的。此限制降低了系统的性能，需要更多站点才能达到所需的容量和覆盖范围。但是，这导致越区切换期间掉话的百分比更高。本文提出了一种用于新呼叫和越区切换呼叫的排队技术，以减少此类系统中掉话的可能性，从而改善QoS。提出的方案显示了更好的系统性能。使用相同技术将越区切换呼叫排队的可能性从2％降低到0.04％，将新呼叫排队的可能性从2％降低到1.14％。所呈现的四种不同方法是：1）仅新呼叫排队。 2）仅越区切换呼叫排队； 3）使用所有可用频道； 4）仅使用一半。排队大小对于新呼叫和越区切换呼叫也都起着重要作用。

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