We examine adaptive modulation schemes for flat-fading channels where the data rate,
transmit power, and instantaneous BER are varied to maximize spectral efficiency, subject to …

Wireless broadband access is becoming increasingly popular in the telecommunications
market due to the projected demand for flexible and easily deployable high, speed …

We introduce an automatic repeat request (ARQ) scheme that uses nonuniform signal
constellations in order to adapt the data rate to the received signal-to-noise ratio (SNR) in a …

We investigate an adaptive modulation method for simultaneous voice and data
transmission over fading channels. The proposed scheme applies a different switching …

We provide an information theoretic perspective on the problem of throughput maximization
in a block flat fading wireless data system with codeword lengths restricted to be less than …