具有限狀態馬可夫通道之分碼多工/非同步阿囉哈無線網路效能分析

Throughput Analysis of CDMA/Unslotted ALOHA Wireless Network with Finite-State Markov Channel

陳式晶(Shih-Ching Chen)

指導教授 ： 王永鐘

國立臺北科技大學/電資學院/電機工程系研究所/碩士(2010年)

https://doi.org/10.6841/NTUT.2010.00280

摘要

為了探討通道衰減程度對分碼多工/非同步阿囉哈協定網路的影響，本論文在分碼多工/非同步阿囉哈協定網路加入有限狀態馬可夫通道條件，分析其網路吞吐量效能。當封包傳送時，藉由多使用者干擾準位的擾動，計算出封包錯誤機率，並得到考慮封包與時間重疊的吞吐量。假設干擾封包產生方式遵循卜松(Poisson)過程，以排隊理論M/M/∞數學模型來建置，可用以分析當傳送的封包為固定長度，或可變的固定長度時，封包於網路上之吞吐量效能(throughput performance)。

關鍵字

分碼多工 ； 非同步阿囉哈 ； 有限狀態馬可夫通道 ； 瑞利衰落 ； GE(Gilbert-Elliott)模型

並列摘要

The purpose of this thesis is to analyze the throughput performance of CDMA/Unslotted ALOHA Wireless Network with Finite-State Markov Channel. To further explore the impact of the fading channel, we added the condition of Finite-State Markov Channel(FSMC) model into CDMA/ Unslotted ALOHA
wireless network. As the levels of multi-user interference fluctuate during the packet transmission, we calculated the packet error probability and the throughput by considering not only the number of overlapped packets but also the amount of time overlap. On the assumption that packet generation is Poisson, the system can be treated as the queueing system M/M/∞. The foregoing, which can be used to analyze the throughput performance of CDMA/Unslotted ALOHA Wireless Network with fixed-length or variable number of fixed-length during the packet transmission.

並列關鍵字

CDMA ； Unslotted ALOHA ； FSMC ； Rayleigh Fading ； GE(Gilbert-Elliott)

參考文獻

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