POWER CONTROL ALGORITHMS FOR DSL

摘要

This paper investigates power control problem in afrequency selective multiuser interference channel. Theobjective of rate and power control is to maximize theachievable rate region, given an average power constraintfor each user. We present distributed and centralizedmultiuser power control algorithms for digital subscriberlines (DSL) by formulating the rate and power controlproblem in two ways - rate maximization and powerminimization. We suggest a multiuser centralized powercontrol algorithm which when applied to the very high bitrate digital subscriber lines (VDSL) upstreamtransmission gives better performance than the distributedand other centralized multiuser power control algorithms.