傳統的BLAST系統具有極高的頻譜利用率，但是基于充分散射環境假設，即認為收發天線陣元之間完全獨立，而這在宏蜂窩移動環境下一般并不成立。本文主要根據宏蜂窩MIMO信道模型，研究了AOA分布對V-BLAST系統的影響，通過對模擬實驗結果的分析，指出MS一側的AOA分布對室外MIMO系統性能起著關鍵性影響。
關鍵詞：V-BLAST；MIMO；相關；瑞利信道； AOA
Astract：The traditional BLAST systems have drawn massive attentions among the researchers because of its high spectrum efficiency, but it is based on the assumptions of the rich-scattering environments, it means totally independent for the receivers and transmitters’ antenna elements. While the independence assumption is not factual in practical macro-cell mobile environments. Based on the macro-cell MIMO channel model proposed by Ali Abdi,
the effect of s AOA angle spreads on V-BLAST system was investigated. By analyzing the simulations results, the distribution of MS side’s AOA have key influences on performance of outdoor MIMO systems.
Key words: V-BLAST；MIMO； AOA