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W/T SPR codes offer higher throughput in OCDMA networks

Shivaleela, ES and Tangade, Shrikant S (2011) W/T SPR codes offer higher throughput in OCDMA networks. In: 2011 IEEE Region 10 Conference on TENCON, 21-24 Nov. 2011, Bali, INDONESIA.

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Official URL: http://dx.doi.org/10.1109/TENCON.2011.6129176


In this paper optical code-division multiple-access (O-CDMA) packet network is considered, which offers inherent security in the access networks. Two types of random access protocols are proposed for packet transmission. In protocol 1, all distinct codes and in protocol 2, distinct codes as well as shifted versions of all these codes are used. O-CDMA network performance using optical orthogonal codes (OOCs) 1-D and two-dimensional (2-D) wavelength/time single-pulse-per-row (W/T SPR) codes are analyzed. The main advantage of using 2-D codes instead of one-dimensional (1-D) codes is to reduce the errors due to multiple access interference among different users. SPR codes are chosen as they have nearly ideal correlation properties. In this paper, correlation receiver is considered in the analysis. Using analytical model, we compare the OOC and SPR code performances in O-CDMA networks. We compute packet-success probability and throughput for both the types of codes. The analysis shows improved performance with SPR codes as compared to OOC codes.

Item Type: Conference Paper
Additional Information: Copyright of this article belongs to IEEE. USA.
Keywords: Optical Code-Division Multiple-Access;Optical CDMA Correlation Receiver;Wavelength/Time Optical CDMA Codes
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Depositing User: Id for Latest eprints
Date Deposited: 27 Mar 2013 09:14
Last Modified: 27 Mar 2013 09:14
URI: http://eprints.iisc.ac.in/id/eprint/46115

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