Performance Evaluation of Uplink Delay-Tolerant Packet Service in IEEE 802.16-Based Networks

被引：3

作者：

Saffer, Zsolt ^{[1
]}

Andreev, Sergey ^{[2
]}

Koucheryavy, Yevgeni ^{[2
]}

机构：

[1] Budapest Univ Technol & Econ, Dept Telecommun, H-1117 Budapest, Hungary

[2] Tampere Univ Technol, Dept Commun Engn, Tampere 33720, Finland

来源：

EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND NETWORKING | 2011年

关键词：

Best Effort; Subscriber Station; Capacity Allocation; Service Flow; Schedule Delay;

D O I：

10.1155/2011/549492

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We provide an analytical model for efficient dynamic capacity allocation in IEEE 802.16 wireless metropolitan area network, where the nonreal-time traffic can utilize the bandwidth unused by the real-time traffic. We investigate the uplink delay of the nrtPS service flow as a function of the capacity allocations for the rtPS (ertPS) and UGS service flows. Unicast polling is applied for the bandwidth reservation of the nrtPS and rtPS (ertPS) packets. Our analysis accounts for both reservation and scheduling delay components. The nrtPS packets arrive according to Poisson process. The model enables asymmetric capacity allocation, as well as asymmetric nrtPS traffic arrival flows. The analytical model is applied for investigating the influence of the real-time traffic on the delay of the nrtPS service flow. We discuss also the determination of several traffic parameters under different constraints, which have potential applications in network control.

引用

页数：12

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