手法を比較

	Multiple-Input Multiple-Output (MIMO)	ゼロフォーシング（ZF）および最小二乗誤差（MMSE）等化
分野	通信工学	通信工学
系統	Process / pipeline	Process / pipeline
提唱年	1995	1974
提唱者	Telatar, Foschini, and Gans	Saleh Mansour and Paul Zervos
種類	spatial multiplexing technique	linear equalization algorithm
原典	Telatar, I. (1999). Capacity of multi-antenna Gaussian channels. European Transactions on Telecommunications, 10(6), 585-595.	Proakis, J. G. (2001). Digital Communications (4th ed.). McGraw-Hill.
別名	spatial multiplexing, antenna diversity	channel equalization, interference cancellation
関連	5	5
概要	MIMO is a technique that uses multiple transmit and receive antennas to significantly increase channel capacity and reliability. Pioneered theoretically by Telatar (1999) and Foschini & Gans (1998), MIMO exploits multipath propagation—typically a liability in wireless—as an asset by creating independent spatial channels. It is now fundamental to all modern wireless systems including LTE, WiFi-6, and 5G, where it provides both capacity gains through spatial multiplexing and robustness through diversity.	Zero-Forcing (ZF) and Minimum Mean-Square Error (MMSE) equalization are fundamental linear receiver algorithms for combating intersymbol interference in dispersive channels. Developed in the context of data transmission theory, these methods form the basis of modern channel equalization in wireless and wired systems. While ZF aggressively cancels interference, MMSE balances interference suppression with noise enhancement, making it the optimal linear solution under Gaussian noise.