Architecture, design, and numerical simulation of a code/pulse-position-swapping (CPPS) direct translating receiver

Antonio J. Mendez; Vincent J. Hernandez; Corey V. Bennett; Robert M. Gagliardi

doi:10.1117/12.874090

21 February 2011 Architecture, design, and numerical simulation of a code/pulse-position-swapping (CPPS) direct translating receiver

Antonio J. Mendez, Vincent J. Hernandez, Corey V. Bennett, Robert M. Gagliardi

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Proceedings Volume 7923, Free-Space Laser Communication Technologies XXIII; 792307 (2011) https://doi.org/10.1117/12.874090
Event: SPIE LASE, 2011, San Francisco, California, United States

Abstract

Code/pulse-position-swapping (CPPS) is a communications scheme that substitutes pulse-position-modulation (PPM) symbols with optical-code-division-access (O-CDMA) codes. CPPS retains the multiple bits per symbol communication of M-ary PPM and the asynchronous multiple access of O-CDMA. Additionally, CPPS has the advantages of granular communications, common electrical bandwidth for all users independent of data rates, compatibility with free-space or guided (fiber and waveguide) communication links, and compatibility with intensity modulation/direct detection. The transmitted symbols (codes) of CPPS are translated from a deserialized bit stream that has been divided into words of length log₂M. Thus the receivers associate the detected symbol with the original bit sequence by means of an electronically implemented look-up-table (LUT). This paper describes the architecture and design of a direct translating receiver based on map-coding, which uses optical processing to output the transmitted bit sequence without the need for a LUT. Analyses and computations characterize the receiver concept in terms of bit errors (mistranslations).

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Antonio J. Mendez, Vincent J. Hernandez, Corey V. Bennett, and Robert M. Gagliardi "Architecture, design, and numerical simulation of a code/pulse-position-swapping (CPPS) direct translating receiver", Proc. SPIE 7923, Free-Space Laser Communication Technologies XXIII, 792307 (21 February 2011); https://doi.org/10.1117/12.874090

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KEYWORDS

Chromium

Receivers

Photodetectors

Photonic integrated circuits

Binary data

Network architectures

Optical communications

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