具有兩種用戶等級的光學式分碼多工存取/非同步阿囉哈網路系統之吞吐量分析

Throughput Analysis of Optical CDMA/Unslotted ALOHA Networks with Two User Classes

鄭嘉智(Chia-Chih Cheng)

指導教授 ： 曾恕銘

國立臺北科技大學/電資學院/電腦與通訊研究所/碩士(2013年)

https://doi.org/10.6841/NTUT.2013.00443

摘要

先前的研究論文分析光學式分碼多工存取/非同步阿囉哈網路之吞吐量分析，但是只有考慮到一種用戶等級。此篇論文，我們提出分具有兩種用戶等級的光學式分碼多工存取/非同步阿囉哈網路之吞吐量。不同的使用者有不同的權限機率，如此一來，才能提供適合的服務品質。我們分析M/M/infinity 排隊模型和M/M/1排隊模型的吞吐量，發現M/M/infinity 模型光學式分碼多工存取/非同步阿囉哈網路系統分析吞吐量比M/M/1少計算四個參數且複雜度較低。經過分析，M/M/infinity 模型吞吐量和模擬結果相近。

關鍵字

排隊理論 ； 光學分碼多工 ； 吞吐量分析 ； 非同步啊囉哈

並列摘要

The previous paper analyzes the throughput of optical code-division multiple access(CDMA)/unslotted ALOHA Networks, but it considers only one user class. In this paper, we propose to analyze the throughput of optical CDMA/unslotted ALOHA networks with two user classes. Different permission probabilities are assigned to each class so that the appropriate quality of service can be provided. We analyze the throughput by two methods: the M/M/infinity queueing model and the M/M/1 queueing model. The throughput analysis of optical CDMA/unslotted ALOHA networks by the M/M/infinity model has less four parameters and thus lower complexity. The analyzed throughput by both methods M/M/infinity is close to the simulated throughput.

並列關鍵字

queueing theory ； optical ； CDMA ； throughput analysis ； unslotted ALOHA

參考文獻

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