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Sequences for Phase-Encoded Optical CDMA

Omrani, Reza and Bhambhani, Pankaj and Kumar, Vijay P (2007) Sequences for Phase-Encoded Optical CDMA. In: SSC 2007, Los Angeles, CA, USA, June 2007 , Los Angeles, CA.

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Official URL: http://dl.acm.org/citation.cfm?id=1785669


In phase-encoded optical CDMA (OCDMA) spreading is achieved by encoding the phase of signal spectrum. Here, a mathematical model for the output signal of a phase-encoded OCDMA system is first derived. This is shown to lead to a performance metric for the design of spreading sequences for asynchronous transmission. Generalized bent functions are used to construct a family of efficient phase-encoding sequences. It is shown how M-ary modulation of these spreading sequences is possible. The problem of designing efficient phaseencoded sequences is then related to the problem of minimizing PMEPR (peak-to-mean envelope power ratio) in an OFDM communication system.

Item Type: Conference Paper
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited: 17 Oct 2011 05:38
Last Modified: 17 Oct 2011 05:38
URI: http://eprints.iisc.ac.in/id/eprint/41435

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