Maximum-likelihood sequence detection with closed-form metrics in OOK optical systems impaired by GVD and PMD
- 7 August 2006
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Journal of Lightwave Technology
- Vol. 24 (8) , 3073-3087
- https://doi.org/10.1109/jlt.2006.876898
Abstract
This paper thoroughly investigates the maximum-likelihood sequence detection (MLSD) receiver for the optical ON-OFF keying (OOK) channel in the presence of both polarization mode dispersion and group velocity dispersion (GVD). A reliable method is provided for computing the relevant performance for any possible value of the system parameters, with no constraint on the sampling rate. With one sample per bit time, a practically exact expression of the statistics of the received samples is found, and therefore the performance of a synchronous MLSD receiver is evaluated and compared with that of other electronic techniques such as combined feedforward and decision-feedback equalizers (FFE and DFE). It is also shown that the ultimate performance of electronic processing can be obtained by sampling the received signal at twice the bit rate. An approximate accurate closed-form expression of the receiver metrics is also identified, allowing for the implementation of a practically optimal MLSD receiverKeywords
This publication has 24 references indexed in Scilit:
- Maximum-likelihood sequence estimation in dispersive optical channelsJournal of Lightwave Technology, 2005
- On the performance of electrical equalization in optical fiber transmission systemsIEEE Photonics Technology Letters, 2003
- On turbo code decoder performance in optical-fiber communication systems with dominating ASE noiseJournal of Lightwave Technology, 2003
- Evaluating the error probability in lightwave systems with chromatic dispersion, arbitrary pulse shape and pre- and postdetection filteringJournal of Lightwave Technology, 2000
- On sampling rate, analog prefiltering, and sufficient statistics for digital receiversIEEE Transactions on Communications, 1994
- On the bit error rate of lightwave systems with optical amplifiersJournal of Lightwave Technology, 1991
- Derivation of analytical expressions for the bit-error probability in lightwave systems with optical amplifiersJournal of Lightwave Technology, 1990
- Error-rate performance of optical amplifiersPublished by Optica Publishing Group ,1989
- Reduced-state sequence estimation with set partitioning and decision feedbackIEEE Transactions on Communications, 1988
- Optimal decoding of linear codes for minimizing symbol error rate (Corresp.)IEEE Transactions on Information Theory, 1974