Error Prediction for Adaptive Modulation and Coding In Multiple-Antenna . . .

Abstract

In this paper, the problem of Packet Error Rate prediction is addressed in the multiple-antenna broadband OFDM context, and its impact on Adaptive Modulation and Coding (AMC) is quantified. The analysis is based on a physical layer comprising various modulation and coding schemes, ranging from robust space-time block coding (STBC) modes to high bit rate spatial division multiplexing (SDM) modes, and also hybrid SDM-STBC schemes. For each mode the expression of several Link Quality Metrics enabling PER prediction in the broadband OFDM channel, such as instantaneous SNR, capacity, or exponential e#ective SNR metrics are provided. Their advantages and limitations are investigated. Finally