應用於UTRA TDD模式之智慧型MBWIMA/UMTS通訊協定

Intelligent MBWIMA/UMTS Protocol in UTRA TDD Mode

高誌陽(Chih-Yang Kao)

指導教授 ： 馬杰

元智大學/工程學院/電機工程學系/博士(2004年)

摘要

本篇論文中，以無線整合多重接取(WIMA)協定為基礎，研究發展多媒體服務行動通訊系統之多重接取協定。於第二代行動通訊中，將時槽式ALOHA協定應用於競爭式可移動邊界無線整合多重接取(contention-based MBWIMA)協定，推導出此多重接取協定於雷式(Rayleigh)以及對數常態(lognormal)衰減環境下之語音阻礙機率和平均資料包封延遲。應用模糊邏輯控制設計於第三代行動通訊UMTS系統UTRA TDD模式下之可移動式無線整合多重接取(MBWIMA)協定，這樣的應用不但可整合傳輸語音、影像和資料，並且選擇適當的最大語音/影像時槽來降低語音影像阻礙機率。除此之外，論文中還加入多重接取干擾(multiple access interference, MAI)對此多重接取協定之影響。為了要達到可以同時控制最大語音/影像時槽以及使用最適當之資料傳輸率，本論文提出以串接式模糊邏輯控制為基礎於UMTS系統UTRA TDD模式之可移動式無線整合多重接取(MBWIMA/UMTS)協定，同樣地，在此種協定中，論文仍然也討論單細胞/多細胞之多重接取干擾的影響。最後，應用空間多重接取(SDMA)於UTRA TDD模式之UMTS可移動式無線整合多重接取協定來增加通訊容量。在此篇論文中，將利用模擬結果來討論其性能表現，並且與應用於UMTS訊框架構之整合封包無線電服務(GPRS)協定以及其他多重接接取協進行定性能比較。

關鍵字

第三代行動通訊 ； 無線整合多重接取 ； 語音阻礙機率 ； 平均資料包封延遲 ； 空間多重接取 ； 串接式模糊邏輯控制

並列摘要

In this dissertation, the multimedia service multiple access protocols of the mobile networks are studied on the basis of the Wireless Integrated Multiple Access (WIMA) protocol. For the second-generation (2G) mobile radio system, the voice dropping probability and the expected data packet delay of the con-tention-based movable boundary WIMA (MBWIMA) protocol using slotted ALOHA protocol are derived and simulated in Rayleigh and lognormal fading environments. The MBWIMA in UMTS (MBWIMA/UMTS) protocol based on fuzzy logic control (FLC) is proposed in UTRA TDD mode for integrated video/voice/data services. The FLC selects the suitable maximum voice/video slots to lower the voice-video dropping probability. The effects of different data packet rates and multiple access interference (MAI) on the protocols are also considered. The cascade FLC (CFLC) is applied for MBWIMA/UMTS protocol to generate the proper maximum number of voice/video slots and the suitable data rate. Finally, for more capacity, the space division multiple access (SDMA) scheduling is applied for the CFLC-based MBWIMA/UMTS protocol. The per-formance of the proposed protocol is simulated and compared with a General Packet Radio Service (GPRS) protocol and other multiple access protocols in UMTS TDD mode.

並列關鍵字

The third generation mobile communications ； wireless integrated mutiple access ； voice blocking probability ； expected-data packet delay ； SDMA ； cascade fuzzy logic control

參考文獻

[1] T. Zahariadis and D. Kazakos, “(R)evolution toward 4G mobile communication systems,” Wireless Comm. Vol.10, no. 4, pp. 6-7, Aug. 2003.

[2] R. Esmailzadeh, M. Nakagawa and A. Jones, “TDD-CDMA for the 4th generation of wireless communications,” Wireless Comm. Vol.10, no. 4, pp. 8-15, Aug. 2003.

[3] M. Casoni, G. Immovilli, M.L. Merani, “Admission control in T/CDMA systems supporting voice and data applications,” IEEE Trans. on Wireless Commun., vol. 1, pp. 540-548, July 2002.

[4] L. Z. Ribeiro, L.A. DaSilva, “A framework for the dimensioning of broadband mobile networks supporting wireless internet services,” IEEE Wireless Commun., vol. 9, pp. 6-13, June 2002.

[5] M. Vollmer, M. Haardt and J. Gotze, “Comparative study of joint-detection tech-niques for TD-CDMA based mobile radio systems,” IEEE J. Select. Areas Com-mun., vol. 19, pp. 1461-1475, Aug. 2001.