Browse > Article

A Study on Detectors and Interference Models for 2-D OCDMA Networks  

Yun, Yong-Chul (서강대학교 전자공학과)
Choe, Jin-Woo (서강대학교 전자공학과)
Sung, Won-Jin (서강대학교 전자공학과)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.28, no.4B, 2003 , pp. 245-256 More about this Journal
Abstract
2-D OCDMA is considered to be a viable technical solution for optical LANs, and a considerable amount of research effort has been devoted to various 2-D OCDMA techniques. In this paper, we propose two new interference model for 2-D OCDMA LANs employing unipolar random codes, and derive maximum-likelihood detectors based on these interference models. The BER performance of the maximum likelihood detectors and that of other existing detectors are compared through extensive computer simulation. In addition, the complexity of high-speed implementation of the detectors is assessed, and as a result, we found that the AND detector and the maximum-likelihood detectors for the pulse-binomial and the pulse-Poisson model offer the best trade-off between the BER performance and the facility of high-speed implementation.
Keywords
OCDMA;
Citations & Related Records
연도 인용수 순위
  • Reference
1 S. Yegnanarayanan, A.S. Bhushan B. Jalali, ' Fast wavelength-hopping time-spreading encoding/decoding for optical CDMA,' IEEE Photonics Technology Letters 12, pp. 573-575, 2000   DOI   ScienceOn
2 J.A. Salehi, 'Emerging optical code-division multiple access communications systems.' IEEE Networks 3, pp. 31-39. 1989
3 L. Tancevski, I. Andonovic. M. Tur. J. Budin. 'Hybrid wavelength hopping/time spreading code division multiple access system,' Proceeding of IEE Optoelectronics 143, pp. 161-166, 1996   DOI   ScienceOn
4 H. Yu, L. Breslau, S. Shenker, 'A scalable web cache consistency architecture,' in Proceedings of ACM SIGCOMM '99 Comp. Commun.. pp. 163-174, 1999
5 G.C. Yang, W.C. Kwong, 'Performance comparison of multiwavelength CDMA and WDMA+CDMA for fiber-optic networks,' IEEE Transactions on Communications 45, pp. 1426-1434, 1997   DOI   ScienceOn
6 E.S. Shivaleela, K.N. Sivarajan, A. Selvarajan, 'Design of a new family of two-dimesional codes for fiber-optic CDMA networks,' Journal of Lightwave Technology 16, pp. 501-508, 1998   DOI   ScienceOn
7 L.R. Chen. 'Flexible fiber Bragg grating encoder/decoder for hybrid wavelength-time optical CDMA,' IEEE Photonics Technology Letters 13, pp. 1233-1235. 2001   DOI   ScienceOn
8 A. Stok, E.H. Sargent, 'Lighting the local area: optical code-division multiple access and quality of service provisioning.' IEEE Network 14, pp. 42-46, 2000
9 F.T.W. Chang, E.H. Sargent, 'Optical CDMA using 2-D codes: the optimal single user detector,' IEEE Communications Letters 5, pp. 169-171, 2001   DOI   ScienceOn
10 J.A. Salehi. 'Code division multiple aceess techniques in optical fiber networks Part I: Fundamental principles,' IEEE Transaction on Communications 37, pp. 824-833, 1989   DOI   ScienceOn
11 G.C. Yang, W.C. Kwong, 'Two-dimensional spatial signature patterns,' IEEE Transactions on Communications 44, pp. 184-191, 1996   DOI   ScienceOn