The performance analysis of discrete-rate adaptive modulation (AM) for MIMO-OFDM
systems with space-frequency block code (SFBC) in Rayleigh fading channels is presented …

While most of existing adaptive modulation techniques for MIMO-OFDM systems focus on
either maximizing data rate or minimizing transmit power, our work aims at minimizing …

Adaptive MQAM modulation is used to maximize spectral efficiency of multiple-input multiple-
output (MIMO) systems while keeping bit error rate (BER) under a target level. Closed-form …

The growing popularity of both multiple-input multiple-output (MIMO) and orthogonal
frequency division multiplexing (OFDM) systems has created the need for adaptive …

We provide a systematic study of adaptive modulation schemes in multiple-input-multiple-
output (MIMO) orthogonal space-time block code (OSTBC) systems. Closed-form …

Future wireless communications systems need a high quality of service coupled with high
data rate transmission for multimedia services. Achieving this goal in the hostile wireless …

Adaptive MIMO-OFDM systems employing eigenmode based signalling have a great
potential to increase the spectral efficiency when the channel state information (CSI) is …

Adaptive modulation scheme has been widely used in multiple-input multiple-output (MIMO)
systems to enhance spectral efficiency while maintaining the bit error rate (BER) under a …

Adaptive modulation scheme has been widely used in multiple-input multiple-output (MIMO)
systems to enhance the spectral efficiency while maintaining the bit-error-rate (BER) under a …

This paper focuses on the implementation and performance analysis of adaptive switching
between STBC and SFBC OFDM systems [1]. Here in this paper we proposed an adaptive …