在兩種無線網路間動態頻道分配下之效能分析

Performance Analysis on Dynamic Channel Allocation between Two Wireless Systems

鄭舜隆(Shun-Lung Cheng)

指導教授 ： 蔡志宏

國立臺灣大學/電機資訊學院/電信工程學研究所/碩士(2009年)

https://doi.org/10.6342/NTU.2009.03082

摘要

無資料

關鍵字

動態頻譜分配 ； 集縮比 ； 壅塞 ； 允入控制

並列摘要

While the internet and digital transmission are developed, the demand of high transmission rate, file sharing or video on demand have been increasing rapidly. However, the spectrum resource of a popular band is often limited. If users’ requests are not served, the dissatisfied and blocking probability are increasing. We have thus proposed an architecture for multiple networks to allocating the spectrum dynamically. When traffic loads is high and the congestion phenomenon occurs, dynamic channel allocation can improve the higher probability of blocking and promote the whole system utilization. In the thesis, we assume four user types to communicate adopting two spectrums in seven cells. Besides, channel borrowing scheme is also taking account of.
We propose three channel allocation policies: (1) Radio resource with admission control. (2) Reallocation on hourly basis. (3) Reallocation on non-hourly basis. In the thesis, we will analyze the performance of these policies with simulation and find the best allocation policy under blocking probability and utility. Last but not least, we could decide the appropriate concentration rate through the best policy to give consideration to quality of service and profit.

並列關鍵字

Dynamic Spectrum Allocation ； handoff ； HSDPA ； concentration rate ； admission control

參考文獻

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