科研之友
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摘要
For multiuser multiple-input and multiple-output ( MIMO) wireless communication in orthogonal frequency division multiplexing systems, we propose a MIMO precoding scheme providing a desired peak-to-average power ratio ( PAR) at the minimum cost that is defined as received SNR degradation. By taking advantage of the concentration of measure [ 1], [ 2], we formulate a convex problem with a constraint on the desired PAR. Consequently, the proposed scheme almost exactly achieves the desired PAR on average, and asymptotically attains the desired PAR at the 10-3 point of its complementary cumulative distribution function, as the number of subcarriers increases.
- 出版日期2017-3
