Measurement-Based Analysis of Transmit Antenna Selection for In-Cabin Distributed MIMO System
Author(s) -
Yan Zhang,
Zhenghui Li,
Fengyu Luan,
Limin Xiao,
Shidong Zhou,
Jing Wang
Publication year - 2012
Publication title -
international journal of antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.282
H-Index - 37
eISSN - 1687-5877
pISSN - 1687-5869
DOI - 10.1155/2012/598049
Subject(s) - mimo , antenna (radio) , wideband , channel (broadcasting) , channel capacity , computer science , electronic engineering , 3g mimo , wireless , transmitter power output , telecommunications , engineering , transmitter
Aircraft seems to be the last isolated island wherethe wireless access is still not available. In this paper, we considerthe distributed multiple-input multiple-output (D-MIMO) systemapplication based on measurements in aircraft cabin. The channelresponse matrices of in-cabin D-MIMO system are collectedby using a wideband channel sounder. Channel capacities withoptimum transmit antenna selections (TASs) are calculated fromthe measured data at different receiver positions. Then theoptimum capacity results are compared to those without selectionin different transmit SNR. It is shown that the TAS can leadobvious capacity gain, especially in the front and back of cabin.The capacity gain represents a decreasing trend with the transmitSNR increasing. The optimal transmit antenna subset is closelyrelated to the transmit SNR. With the SNR increasing, moretransmit antennas will be chosen for higher performance. Thesubset of those transmit antennas near the receiver is a reasonablechoice in practical application of D-MIMO system
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