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研究生:林揚鈞
研究生(外文):Yang-Jiun Lin
論文名稱:編碼之直接序列分碼多工/非同步阿囉哈系統對可變的固定長度封包數於雷利衰減有限狀態馬可夫通道模型之吞吐量模擬
論文名稱(外文):Throughput of Coded DS CDMA/Unslotted ALOHA System with Variable Number of Fixed-length Packets in Rayleigh Fading Finite-State Markov Channel Model
指導教授:曾恕銘
指導教授(外文):Shu-Ming Tseng
口試委員:王忠炫王永鐘
口試委員(外文):Chung-Hsuan WangYung-Chung Wang
口試日期:2012-07-02
學位類別:碩士
校院名稱:國立臺北科技大學
系所名稱:電腦與通訊研究所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2012
畢業學年度:100
語文別:英文
論文頁數:24
中文關鍵詞:有限狀態馬可夫通道吞吐量分碼多工阿囉哈可變訊息長度
外文關鍵詞:finite-state Markov channel (FSMC)throughputCDMAALOHAvariable message length
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  • 被引用被引用:0
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  • 下載下載:4
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先前, Phan等人在雷利衰減通道下分析分碼多工阿囉哈系統(CDMA ALOHA system) 的吞吐量效能,但是他們假設雷利衰減通道系數在一整個封包中都是相同的,這是不真實的。在這篇論文中,我們提出有限狀態馬可夫通道(finite-state Markov channel ,FSMC)去分析在一個訊息中含有數個固定長度封包(可變訊息長度)的直接序列分碼多工非同步阿囉哈系統之吞吐量效能,並且考慮通道系數與多重存取干擾對於封包中的每一個符號的變化。有限狀態馬可夫通道(finite-state Markov channel ,FSMC)是將訊號雜訊比(signal-to-noise ratio ,SNR)範圍切割至一個有限數的狀態中,並且提供一個容易處理的數學模組來因應時變通通。

Previously, Phan et al. analyzed the throughput performance of the CDMA ALOHA system in Rayleigh fading channel, but they assume that the channel coefficient of Rayleigh fading was the same in the whole packet, which is not realistic. In this paper, we propose the finite-state Markov channel (FSMC) to analyze throughput performance of the DS CDMA unslotted ALOHA system with variable number of fixed-length packets, and analyze the throughput when the channel coefficient and multiple access interference vary symbol-by-symbol. The FSMC model partitions the signal-to-noise ratio (SNR) range into finite number of states, and provides a mathematically tractable model for time-varying channels.

摘 要 i
ABSTRACT ii
ACKNOWLEDGMENT iii
CONTENTS iv
LIST OF TABLES v
LIST OF FIGURES vi
Chapter 1 INTRODUCTION 1
Chapter 2 FINITE-STATE MARKOV CHANNEL (FSMC) MODEL 3
Chapter 3 SYSTEM MODEL 6
Chapter 4 THROUGHPUT ANALYSIS FOR DS CDMA/UNSLOTTED ALOHA SYSTEM 8
4.1 The Previous Queueing Model 8
4.2 Throughput Analysis for the Queuing Model in FSMC channel 9
Chapter 5 THE SIMULATION AND NUMERICAL RESULTS 14
Chapter 6 CONCLUSION 19
REFERENCES 20
GLOSSARY 23

[1] Jae-Woo So, Il Han, Byung-Cheol Shin, and Dong-Ho Cho, “Performance analysis of DS/SSMA unslotted ALOHA system with variable length data traffic,” IEEE Journal of Selected Areas in Communications, vol. 19, no. 11, 2001, pp. 2215 – 2224.

[2] Shu-Ming Tseng, Chun-Wei Hsu, and Yung-Chung Wang, “Simpler throughput analysis of CDMA/Unslotted ALOHA radio networks with variable message length based on M/M/inf queueing model,” Wireless Personal Communications, vol. 53, no. 2, 2010, pp.153-162.

[3] M.A.A. Mohamed, H.M.H. Shalaby, E.-S.A.-M. El-Badawy, “Performance Analysis of Optical CDMA MAC Protocol With Variable-Size Sliding Window,” IEEE JOURNAL OF LIGHTWAVE TECHNOLOGY, vol. 24, no. 10, 2006, pp.3590-3597.

[4] V. V. Phan, S. G. Glisic, and D. D. Luong, “Packet-Length Adaptive CLSP/DS-CDMA: Performance in Burst-Error Correlated Fading Channels,” IEEE Trans. Wireless Commun.,vol. 3, no. 1, 2004, pp. 147 – 158.

[5] Q. Zhang and S.A. Kassam, “Finite-state Markov model for Rayleigh fading channels,” IEEE Trans. Commun., vol. 47, no. 11, 1999, pp. 1688 – 1692.

[6] Dinh-Thong Nguyen, Xuan-Thang Vu, Nguyen Quoc Tuan,” An FSMC Model for the ACM Scheme with Repetition Coding in Mobile WiMAX,” IEEE International Conference on Advanced Technologies for Communications. , 2009, pp. 233-236.

[7] E. N. Gilbert, “Capacity of a burst-noise channel,” Bell Syst. Tech. J., vol. 39, 1960, pp. 1253 – 1265.

[8] E. 0. Elliott, “Estimates of error rates for codes on burst-noise channels,” Bell Syst. Tech. J., vol. 42, 1963, pp. 1977 – 1997.

[9] H. S. Wang and N. Moayeri, “Finite-state Markov channel—A useful model for radio communication channels,” IEEE Trans. Veh. Technol., vol. 44, no. 1, 1995, pp. 163 – 171.

[10] J. M. Holtzman, “A simple, accurate method to calculate spread-spectrum multiple-access error probabilities,” IEEE Trans. Commun., vol. 40, 1991, pp. 461–464.

[11] M. Pursley, “Performance Evaluation for Phase-Coded Spread-Spectrum Multiple-Access Communication--Part I: System Analysis,” IEEE Trans. Commun., vol. 25, no. 8, 1977, pp. 795 – 799.

[12] E. Cinlar, “An introduction to spatial queues,” Advances in Queueing, Edited by J. H. Dshalalow, CRC Press, 1995.

[13] H. Okada, T. Yamazato, M. Katayama, and A. Ogawa, “Queueing Analysis of CDMA Unslotted ALOHA Systems with Finite Buffers,” IEICE Trans. Fundamentals, vol.E81-A, no.10, 1998, pp.2083-2091.

[14] Shu-Ming Tseng, Jian-Cheng Yu, Jheng-Zong Shih, and Yueh-Teng Hsu, “Reed-Solomon Decoder Optimization for PC-Based DVB-T Software Radio Receiver, ” in Proc. The International Conference on Consumer electronics, 2011, pp. 393-394.

[15] Chung-Hsuan Wang, Yu-Min Hsieh, and Hsin-Chuan Kuo, “Bilateral Exchange of Soft-Information for Iterative Reliability-Based Decoding with Adaptive Belief Propagation,” IEEE Commun. Letters, vol.13, no.9, 2009, pp.682 - 684 .


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