Per-Antenna Power Constrained MIMO Transceivers Optimized for BER

論文發表人: 翁竟智(加州理工學院電機系)

 

http://www.asilomarssc.org/

 

本文討論線性收發器的優化問題.在多載波多輸入（ MIMO ）的渠道，每個天線功率的限制。 由於在實際執行每個天線是有限的其單獨配備功率放大器，本文採用更支現實的每天線權力的制約，相反傳統的總和權力制約發射機天線。假設完美知識的渠道在發射器和接收器，優化問題可以轉變成一個半正定問題 ，是可以被解決的凸優化工具。此外，若干客觀職能的MIMO系統，包括平均位誤差率，也可以用此方法解出。

 

This paper considers the linear transceiver optimization problem for multi-carrier multiple-input multipleoutput (MIMO) channels with per-antenna power constraints. Because in practical implementations each antenna is limited individually by its equipped power amplifier, this paper adopts the more realistic per-antenna power constraints, in contrast to the conventional sum-power constraint on the transmitter antennas. Assuming perfect channel knowledge both at the transmitter and the receiver, the optimization problem can be transformed into a semi-definite program (SDP), which can be solved by convex optimization tools. Furthermore, several objective functions of the MIMO system, including average bit error rate, can also be optimized by the introduction of the majorization theory.