Pulse Amplitude and Delay Modulation: Design and performance analysis

Slaiman, I. and Tang, T.B. and Hamid, N.H. (2015) Pulse Amplitude and Delay Modulation: Design and performance analysis. Optics Communications, 345. pp. 52-56.

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Abstract

Power efficient modulation techniques have previously been proposed to provide the uplink in visible light communication systems. However, such techniques have poor bandwidth utilization as multiple bits are mapped to single narrow pulse. When the bandwidth is limited, it has been found that degradation in optical power becomes very high and data rate poor. In this paper we introduce a new modulation technique called Pulse Amplitude and Delay Modulation (PADM). We compare its performance with Dual Header Pulse Interval Modulation (DH-PIM) that has the best reported bandwidth efficiency. Experiment results show that the data rate could be enhanced from 3.2 kps to 4.3 kbs using a red link (640 nm) under same error rate. This suggests PADM has better bandwidth efficiency than DH-PIM. © 2015 Elsevier B.V.

Item Type: Article
Impact Factor: cited By 1
Uncontrolled Keywords: Bandwidth; Efficiency; Light; Visible light communication, Band-width utilization; Bandwidth efficiency; Modulation techniques; Optical wireless; Performance analysis; Power efficient; Pulse amplitude; Pulse interval modulation, Modulation
Depositing User: Ms Sharifah Fahimah Saiyed Yeop
Date Deposited: 30 Aug 2021 08:49
Last Modified: 30 Aug 2021 08:49
URI: http://scholars.utp.edu.my/id/eprint/25983

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