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The IEEE 802.16e-2005, and amendment to the IEEE 802.16 standard, adds a new service flow called extended real-time polling service (ertPS). This service is designed for real-time traffic with variable data rates. In this paper, we investigate the effectiveness of the mechanism on ertPS traffic. We first analyze the existing modules proposed for simulation of IEEE 802.16-based networks using ns-2...
To support the differentiated Quality-of-Service (QoS) and improve the utilization of the scarce wireless bandwidth, the IEEE 802.11e standard specifies an efficient burst transmission scheme referred to as the transmission opportunity (TXOP). Recently, analytical models have been reported to evaluate the performance of the TXOP scheme. However, most of these models were developed under the assumptions...
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