Abstract
Recently, applications of real-time polling service (rtPS) in IEEE 802.16 wireless networks have gained considerable popularity. These applications generate large amounts of real time traffic in the network and thus maintaining the quality of service (QoS) such as packet delay requirement in rtPS dominant networks is critical. Existing dimensioning methodology does not consider QoS parameters of rtPS in network dimensioning. Moreover, exhaustive and time-consuming simulations are required to evaluate the performance and QoS of rtPS. To overcome this problem, we propose an improved radio network dimensioning framework which considers QoS parameters of rtPS in network dimensioning. In this framework, an analytical model is developed to evaluate the capacity and performance of rtPS in IEEE 802.16 wireless networks. The proposed framework provides a fast and accurate means of finding the trade-off between system load and packet delay, thus providing network operators with an analytical tool that jointly considers coverage, capacity and QoS requirements for obtaining the minimum number of sites required. The accuracy of the proposed model is validated through simulations.
Highlights
The IEEE 802.16 family of wireless broadband standards has gained considerable attention from the telecommunication industry recently due to its capability of providing mobile broadband services and delivering real time content with quality of service (QoS) provisioning
In this paper, we propose an effective dimensioning framework for real-time polling service (rtPS) traffic in IEEE 802.16 networks such that the throughput requirement is satisfied while achieving a good compromise between resource utilization and delivery delay
We propose a dimensioning framework which jointly considers coverage, capacity and QoS requirements to determine the minimum number of sites needed for a network
Summary
The IEEE 802.16 family of wireless broadband standards has gained considerable attention from the telecommunication industry recently due to its capability of providing mobile broadband services and delivering real time content with quality of service (QoS) provisioning. To the best of our knowledge, no analytical study of network capacity planning with significant rtPS traffic has been carried out To fill this gap, in this paper, we propose an effective dimensioning framework for rtPS traffic in IEEE 802.16 networks such that the throughput requirement is satisfied while achieving a good compromise between resource utilization and delivery delay. A matrix geometric method is adopted to obtain some performance measures analytically; 2) The performance of IEEE 802.16 networks with rtPS as the dominant service is studied using the model developed; 3) An effective dimensioning framework, which incorporates QoS requirements such as packet delay and minimum throughput required, is proposed.
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