The principle of adaptive modulation and coding system (AMCS) is discussed. The key techniques in AMCS are introduced , including RCPT(Rate compatible puncture turbo) code, high order modulation, H-ARQ and MIMO( multiple input and multiple output) system.

• 本文主要讨论自适应调制与编码系统 (AdaptiveModulationandCodingsystem)的原理 ,介绍AMCS实现的几个关键技术 ,包括RCPT(速率适配凿孔turbo)码、高阶调制、H -ARQ和MIMO(多输入多输出 )系统。