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首页> 外文期刊>American journal of applied sciences >ENHANCEMENT OF QUALITY OF SERVICE PARAMETERS IN WIMAX MOBILE NETWORKS
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ENHANCEMENT OF QUALITY OF SERVICE PARAMETERS IN WIMAX MOBILE NETWORKS

机译：WIMAX移动网络中服务参数质量的提高

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摘要

Next generation mobile networks are expected to provide seamless personal mobile communication and QoS. Since the demands for high speed Internet access as well as multimedia service had increased for last mile broadband access, the Scheduling is one of the most important components of BWA systems that affect system QoS provided to users. Priority queuing gives better throughput than the existing scheme. The IEEE 802.16 standard is a rapidly developing technology for broadband wireless access system. It supports QoS and has very high transmission rate. WiMAX is a standard wireless technology which is used to improve internet access and the multimedia services at very high speed to the end user. The purpose of QoS is to provide a definitive connection to the users who are intrested to connect to the WiMAX tower. In this study we propose a scheme to improve the QoS in the WiMAX system by increasing the throughput and decreasing the jitter. This study is based on the use of two scheduling algorithms to calculate the data in the MAC layer in order to provide maximum throughput. Moreover we propose a scheme to calculate the jitter between the various mobile users. The scheme performance is investigated through simulation. Priority Queuing gives better throughput compared to the Random Early Detection. Also jitter is minimized in priority queuing.
机译：下一代移动网络有望提供无缝的个人移动通信和QoS。由于对于最后一英里的宽带访问，对高速Internet访问和多媒体服务的需求已经增加，因此调度是BWA系统最重要的组成部分之一，它会影响提供给用户的系统QoS。与现有方案相比，优先级排队可提供更好的吞吐量。 IEEE 802.16标准是一种快速发展的宽带无线接入系统技术。它支持QoS，并且具有很高的传输速率。 WiMAX是一种标准的无线技术，用于以极高的速度改善最终用户的Internet访问和多媒体服务。 QoS的目的是向那些想要连接到WiMAX塔的用户提供确定的连接。在这项研究中，我们提出了一种通过增加吞吐量和减少抖动来改善WiMAX系统中QoS的方案。这项研究基于使用两种调度算法来计算MAC层中的数据，以提供最大的吞吐量。此外，我们提出了一种方案来计算各种移动用户之间的抖动。通过仿真研究了该方案的性能。与随机早期检测相比，优先队列提供了更好的吞吐量。在优先级排队中，抖动也被最小化。

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