Commentaries:
What Peter confirms here is that the receiving of the Holy Spirit is, indeed, also the baptism of the Holy Spirit. The receiving and the baptism of the Holy Spirit are synonymous.
John W. Ritenbaugh
Pentecost and the Holy Spirit
Other Forerunner Commentary entries containing Acts 11:15:
Acts 10:9-16
Acts 10:28
Acts 10:34-35