(3.236.214.19) 您好!臺灣時間:2021/05/10 08:22
字體大小: 字級放大   字級縮小   預設字形  
回查詢結果

詳目顯示:::

: 
twitterline
研究生:何孟修
研究生(外文):Meng-Siou He
論文名稱:在OFDMA上行影像傳輸系統中使用渦輪編碼於混合自動重傳請求類型二實現網路第一、二、五層的跨層資源分配
論文名稱(外文):Cross Layer 1, 2 and 5 Resource Allocation in Uplink Turbo-coded TYPE-Ⅱ HARQ-based OFDMA Video Transmission Systems
指導教授:曾恕銘
指導教授(外文):Shu-Ming Tseng
口試委員:張立中曾德峰
口試日期:2016-07-28
學位類別:碩士
校院名稱:國立臺北科技大學
系所名稱:電子工程系研究所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
畢業學年度:104
中文關鍵詞:正交分頻多重存取; 渦輪碼; 子載波分配; 混合自動重傳請求類型二; 失真率; 峰值訊雜比; 圖像組
外文關鍵詞:OFDMA; Turbo code; subcarrier allocation; hybrid automatic repeat request (HARQ); rate distortion; Peak-Signal-to-Noise Ratio (PSNR); Group of Pictures (GOP)
相關次數:
  • 被引用被引用:0
  • 點閱點閱:56
  • 評分評分:系統版面圖檔系統版面圖檔系統版面圖檔系統版面圖檔系統版面圖檔
  • 下載下載:1
  • 收藏至我的研究室書目清單書目收藏:0
在之前文獻中Dawei Wang等人提出在OFDMA上行迴旋編碼影像傳輸系統做跨層資源分配,資源分配演算法考慮到網路第一層的通道狀態訊息和第五層的失真率公式。參考文獻中沈俊宏碩士論文內提出增加混合自動重傳請求類型二協定做PSNR(影像品質)的改善。為了進一步提升PSNR及降低重傳錯誤封包次數,本文提出使用渦輪碼取代原本的迴旋碼。此外參考文獻中沈俊宏碩士論文未考慮混合自動重傳請求重傳的重傳封包的冗餘量。
在本文中我們額外對參考文獻中沈俊宏碩士論文及本文提出的渦輪碼編碼情況下對重傳封包的冗餘量做量化,重新對PSNR增益做調整。模擬結果顯示,比較HARQ冗餘調整後的PSNR,本文提出渦輪編碼的混合自動重傳請求方案優於迴旋編碼的混合自動重傳請求方案,當最大重傳次數為二次時,與參考文獻中沈俊宏碩士論文相比高了3.25dB,與Dawei Wang提出的參考文獻高了3.95dB。
Wang et. al. propose the cross layer resource allocation algorithm considering channel state information in layer 1 and rate-distortion function in layer 5, for uplink convolutional coded OFDMA video transmission systems. A preliminary version of this paper proposes to add TYPE-Ⅱ hybrid automatic repeat request protocol (TYPE-Ⅱ HARQ) to improve PSNR (the measure of video quality). In this thesis, to improve PSNR further and reduce the redundancy due to retransmissions, we propose to use the turbo code instead of the convolutional code. Moreover, the preliminary version of this paper does not consider the redundancy of HARQ retransmissions in PSNR gain. In this thesis, we quantized this redundancy and so that PSNR gain for the convolutional coded case in the preliminary version of this paper and our proposed turbo coded case are now adjusted for redundancy. The simulation results show that, for the HARQ redundancy-adjusted PSNR, the proposed turbo-coded HARQ scheme outperforms the convolutional coded HARQ scheme in the preliminary version of this paper and the convolutional coded no HARQ scheme in Wang et al. by 3.25dB, and 3.95 dB, respectively, when there is maximum two retransmissions for HARQ.
摘 要 i
ABSTRACT iii
ACKNOWLEDGMENT v
Contents vi
List of Figures vii
Chapter 1 INTRODUCTION 1
Chapter 2 SYSTEM MODEL 3
Chapter 3 RESOURCE ALLOCATION ALGORITHM 7
Chapter 4 SIMULATION 9
Chapter 5 CONCLUSION 15
REFERENCES 16
[1] Y. Liu, Q. Ma and H. Zhang, “Power Allocation and Adaptive Modulation for OFDM Systems with Imperfect CSI,” in Proc. of Vehicular Technology Conference, 2009. VTC Spring 2009. IEEE 69th, pp. 1-4, April, 2009.
[2] B. Maham, E. Jedari and A. Enayati, “Adaptive Rate and Power Allocation Schemes for OFDM/SDMA System,” in Proc. of Second International Conference on Communications and Networking in China, pp. 534-538, August, 2007.
[3] Y. F. Chen, Y. H. Lee and P. T. Hwang, “Adaptive Channel Estimation for Multiple Antenna OFDM Systems,” Wireless Personal Communications, vol. 59, no. 2, pp. 331-343, July, 2011.
[4] W. C. Pao and Y. F. Chen, “Adaptive Gradient-Based Methods for Adaptive Power Allocation in OFDM-Based Cognitive Radio Networks,” IEEE Transactions on Vehicular Technology, vol. 63, no. 2, pp. 836-848, July, 2014.
[5] C. Y. Wong, R. S. Cheng, K. B. Lataief and R. D. Murch, “Multiuser OFDM with adaptive subcarrier, bit, and power allocation,” IEEE Journal on Selected Areas in Communications, vol. 17, no. 10, pp. 1747-1758, October, 1999.
[6] I. C. Wong and B. L. Evans, “Optimal resource allocation in the OFDMA downlink with imperfect channel knowledge,” IEEE Transactions on Communications, vol. 57, no. 1, pp. 232-241, January, 2009.
[7] Z. Wang, L. Liu, X. Wang and J. Zhang, “Resource Allocation in OFDMA Networks With Imperfect Channel State Information,” IEEE Communications Letters, vol. 18, no. 9, pp. 1611-1614, July, 2014.
[8] G. Cook, J. Prades-Nebot, Y. Liu and E. Delp, “Rate-distortion analysis of motion-compensated rate scalable video,” IEEE Transactions on Image Processing, vol. 15, no. 8, pp. 2170-2190, August, 2006.
[9] Q. Liu, S. Zhou and G. B. Giannakis, “Cross-layer combining of adaptive modulation and coding with truncated ARQ over wireless links,” IEEE Transactions on Wireless Communications, vol. 3, no. 5, pp. 1746-1755, September, 2004.
[10] A. Ortega, K. Ramchandran and M. Vetterli, “Optimal trellis-based buffered compression and fast approximations,” IEEE Transactions on Image Processing, vol. 3, no. 1, pp. 26-40, January, 1994.
[11] Z. Chen and K. N. Ngan, “Recent advances in rate control for video coding,” Signal Processing: Image Communication, vol. 22, no. 1, pp. 19-38, January, 2007.
[12] D. Wang, L. Toni, P. C. Cosman and L. B. Milstein,” Uplink Resource Management for Multiuser OFDM Video Transmission Systems: Analysis and Algorithm Design,” IEEE Transactions on Communications, vol. 61, no. 5, pp. 2060-2073, March, 2013.
[13] Chun-Hung Shen, “Simulation Study of Combining ARQ and Resource Allocation in Multiuser OFDM Video Transmission System,” M.S. thesis, Dept. Electron. Eng., National Taipei University of Technology, Taipei, Taiwan, 2015.
[14] E. Malkamaki and H. Leib, “Performance of truncated type-II hybrid ARQ schemes with noisy feedback over block fading channels,” IEEE Transactions on Wireless Communications, vol. 48, no. 9, pp. 1477-1487, September, 2000.
[15] S. Marcille, P. Ciblat and C. J. Le Martret, “Resource allocation for Type-I HARQ-based wireless networks with finite-length codes,” in Proc. of IEEE Workshop on Signal Processing Advances in Wireless Communications (SPAWC), pp. 1-5, June, 2013.
[16] N. Ksairi, P. Ciblat and C. J. Le Martret, “Near-Optimal Resource Allocation for Type-II HARQ Based OFDMA Networks Under Rate and Power Constraints,” IEEE Transactions on Wireless Communications, vol. 13, no. 10, pp. 5621-5634, October, 2014.
[17] J. G. Proakis, “Digitial Communications,” McGraw Hill Higher Education, 2000.
[18] A. Goldsmith, “Wireless Communications,” Cambridge University Press, 2005.
[19] K. Stuhlmuller, N. Farber, M. Link and B. Girod, “Analysis of video transmission over lossy channels,” IEEE Journal on Selected Areas in Communications, vol. 18, no. 6, pp. 1012-1032, June, 2000.
[20] C. Heegard and S. B. Wicker, “Turbo Coding,” Springer, 1999, ch3, pp.55-57.
[21] C. Berrou and A. Glavieux, “Near optimum error correcting coding and decoding: turbo-codes,” IEEE Transactions on Communications, vol. 44, no. 10, pp. 1261-1271, October, 1996.
[22] “Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications,” IEEE Standard 802.11™, 2012.
連結至畢業學校之論文網頁點我開啟連結
註: 此連結為研究生畢業學校所提供,不一定有電子全文可供下載,若連結有誤,請點選上方之〝勘誤回報〞功能,我們會盡快修正,謝謝!
QRCODE
 
 
 
 
 
                                                                                                                                                                                                                                                                                                                                                                                                               
第一頁 上一頁 下一頁 最後一頁 top
無相關論文
 
無相關期刊
 
無相關點閱論文
 
系統版面圖檔 系統版面圖檔