Comparison of performance of OCDMA networks with correlation and chiplevel receivers

Shivaleela, ES and Tangade, Shrikant S (2011) Comparison of performance of OCDMA networks with correlation and chiplevel receivers. In: 2011 17th IEEE International Conference on Networks (ICON), 14-16 Dec. 2011, Singapore.

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Abstract

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. In this paper, correlation receiver and chip-level receiver are considered in the analysis. Using analytical model, we compute packet-success probability, throughput and compare for OOC and SPR codes in an O-CDMA network and the analysis shows improved performance with SPR codes as compared to OOC codes.

Item Type:	Conference Paper
Publisher:	IEEE
Additional Information:	Copyright of this article belongs to IEEE.
Keywords:	Optical Code-Division Multiple-Access; Optical CDMA Correlation Receiver; Wavelength/Time Optical CDMA Codes
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	15 Mar 2013 07:25
Last Modified:	15 Mar 2013 07:25
URI:	http://eprints.iisc.ac.in/id/eprint/46111

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