... communications, communication theory, and informa-tion theory, in par ticular analysis and optimization of link adap-tation schemes, radio resource allocation, and cross-layer design.He has coauthored ... estimate of the channel at time t,whereas the data are sent over the channel at time t + τ.Wewillas-sume that the link adaptation done at time t+τ is based on yetanother channel estimate taken at ... ora denotes optimal rate adaptation and E1(·) is the first-order exponential inte gral function [8].4.2. Optimal power and rate adaptationIt has been shown that the MASSE for optimal power and rate...