By Topic

A differential coding method for the symmetrically differential polarization shift-keying system

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Hou, K.S. ; Dept. of Electr. Eng., Nat. Taiwan Univ., Taiwan ; Jingshown Wu

This paper presents a novel differential coding method for the symmetrically differential polarization shift-keying system. The proposed differential coding method, which can overcome the slow polarization variation in the fiber, constructs the reference frame by setting the sum, the difference, and the cross product of previous two symbols as the first, second, and the last axes of the signal space. Obviously, each axis is determined by the previous two symbols together. Thus, at the receiver, the new scheme constructs a noisy reference frame more accurately than other schemes and yields better performance. The optimal constellation for the system is symmetric and easy to find. The analytical integral form for the bit error rate (BER) of the proposed system is derived, and the saddle point method is applied to obtain the analytical results. It is found that the performance in terms of BER is much better than that of other differential polarization shift-keying systems. The analytical results agree with the simulation very well.

Published in:

Communications, IEEE Transactions on  (Volume:50 ,  Issue: 12 )