V-BLAST偵測演算法及可行性分析

The Detection Algorithms of V-BLAST and Possibility Analysis

林家葳(Jia-Wei Lin)

指導教授 ： 劉大勇

中原大學/工學院/電子工程研究所/碩士(2007年)

https://doi.org/10.6840/cycu200700330

摘要

在現今的通訊系統中，為了要提升傳輸速率，假使在不增加頻寬的情況下，單輸入單輸出系統已不適合，多輸入多輸出系統則可實現這樣的目標；另外，因為多輸入多輸出系統的出現，所以衍生出一種編碼理論：時空編碼理論(Space-Time Coding)。
這篇論文，我們要介紹時空編碼理論中的垂直貝爾實驗室階層式時空 (vertical Bell Labs Layered Space-Time, V-BLAST) 結構，包括其傳送機與接收機，接著討論各種解碼演算法與通道估測演算法，最後以模擬的方式分析各種演算法及以複雜度的角度討論各個演算法。

關鍵字

時空碼 ； 多輸入多輸出系統

並列摘要

In recent communication system, in order to increase transmission rate, multiple-input multipl-output system can achieve it without increasing the bandwidth. In addition, Space-Time Coding is derived from multiple-input multipl-output system.
In this paper, we will introduce vertical Bell Labs Layered Space-Time(V-BLAST) architecture in Space-Time Coding including its transmitter and receiver, and we will discuss many kinds of detecting algorithms and a channel estimated algorithm. Finally, we simulate and analyze the complexity of these algorithms.

並列關鍵字

MIMO ； Space-Time Coding

參考文獻

[1] V. Tarokh, N. Seshadri, and A. R. Calderbank, “Space-time codes for high data rate wireless communication： Performance criterion and construction,” IEEE Trans. Inform. theory, vol.44, pp. 744-765, Mar. 1998.

[2] V. Tarokh, N. Seshadri, and A. R. Calderbank, “Space-time codes for high data rate wireless communication： Performance criterion in the presence of channel estimation errors, mobility, and multiple paths,” IEEE Trans. Commun., vol.47, pp. 199-207, Mar. 1999.

[3] G.J. Foschini, “Layered Space-Time Architctrue for Wireless Communication in a Fading Environment When Using Multi-Element Antennas,” Bell Labs Technical Journal, vol. 6, no. 2, pp. 41-59, 1996.

[5] Hamid Jafarkhami, Space-Time Coding: Theory and Practice, Cambridge, 2005

[8] P. W. Wolniansky, G. J. Foschini, G. D. Golden, and R. A. Valenzuela, “V-BLAST: An architecture for realizing very high data rates over the rich-scattering wireless channel,” in Proc. ISSSE, Pisa, Italy, Sept. 1998.