The Effect of Receiver-Side Circular Antenna Arrays on Bit Error Probability in a Wireless Line-of-Sight OAM Communication System

The use of multiple-input multiple-output (MIMO) techniques is one of the proposed methods for detecting message signals multiplexed on a single frequency using multiple wireless orbital angular momentum (OAM) states. In a recent study, the use of a uniform circular array (UCA) of conventional anten...

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Bibliographic Details
Main Authors: Opare, Kwasi A., Yujun Kuang, Kponyo, Jerry J., Nwizege, Kenneth S., Tebe, Parfait I.
Format: Conference Proceeding
Language:English
Subjects:
Antenna arrays
Arrays
bit error probability
Channels
Circularity
Communication systems
Equalizers
Error analysis
Errors
line of sight MIMO
MIMO
minimum mean square error
Multiplexing
Receiving antennas
Signal to noise ratio
Wireless communication
Wireless orbital angular momentum (OAM)
zero-forcing
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Summary:The use of multiple-input multiple-output (MIMO) techniques is one of the proposed methods for detecting message signals multiplexed on a single frequency using multiple wireless orbital angular momentum (OAM) states. In a recent study, the use of a uniform circular array (UCA) of conventional antennas at the receive side was used in an ideal wireless OAM communication system. In this paper, we show that, using non-uniform circular array is also feasible. However, the performance is sub-optimal, compared to the use of UCA. The performance is measured using the condition number of the channel matrix and the bit error probabilities of the zero-forcing (ZF) and minimum mean square error (MMSE) equalizers under the QPSK modulation scheme.
ISSN:2327-0632
2327-0659
DOI:10.1109/ACCT.2015.53