Enhanced Multiple-Shift Scheme for Rapid Code Acquisition in Optical CDMA Systems

Authors:
Dahae Chong;Taeung Yoon;Youngyoon Lee;Chonghan Song;Myungsoo Lee;Seokho Yoon
Affiliations:
School of Information and Communication Engineering, Sungkyunkwan University, Suwon, Korea 440-746;School of Information and Communication Engineering, Sungkyunkwan University, Suwon, Korea 440-746;School of Information and Communication Engineering, Sungkyunkwan University, Suwon, Korea 440-746;School of Information and Communication Engineering, Sungkyunkwan University, Suwon, Korea 440-746;School of Information and Communication Engineering, Sungkyunkwan University, Suwon, Korea 440-746;School of Information and Communication Engineering, Sungkyunkwan University, Suwon, Korea 440-746
Venue:
ICCSA '09 Proceedings of the International Conference on Computational Science and Its Applications: Part II
Year:
2009

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Lighting the local area: optical code-division multiple access and quality of service provisioning

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Abstract

In this paper, we propose a novel code acquisition scheme called enhanced multiple-shift (EMS) for optical code division multiple access (CDMA) systems. By using multiple thresholds, the proposed EMS scheme provides a shorter mean acquisition time (MAT) than that of the conventional mutiple-shift (MS) scheme. The simulation results demonstrate that the MAT of EMS scheme is shorter than that of MS scheme in both single-user and multi-user environments.