... designedtraining sequence (10), the closed-form estimation variance(31) may provide a guideline for signal power allocationat transmitter, for example, for a given threshold of theestimation ... following steps.Step 1. By (32), we perform zero- forcing equalization byS(i)=S1(i), ,SN(i)T=H(i)†)U(i). (33)The information symbols, owing to the finite ... the following assumptions.(H1) The information sequence Sn(i) is equi-powered,finite-alphabet, i.i.d., with zero- mean and varianceEs, and uncorrelated with additive noise {vn(i, t)}.(H2)...