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Optical Fiber Telecommunications VB, 5th Edition
book

Optical Fiber Telecommunications VB, 5th Edition

by Ivan Kaminow, Tingye Li, Alan E. Willner
July 2010
Intermediate to advanced content levelIntermediate to advanced
928 pages
33h 42m
English
Academic Press
Content preview from Optical Fiber Telecommunications VB, 5th Edition
For DQPSK/PAM2 [14], the theoretical receiver sensitivity penalty as compared
to BPSK with the same bit rate) is 4.7 dB, about 1.7 dB smaller than 8-ary DPSK
which is also a 3-bit/symbol format. At 4-bit/symbol and 5-bit/symbol, the hybrid
DPSK/PAM offers higher optimal receiver sensitivities than m-ary DPSK, as shown
in Figure 4.11. However, DPSK/PAM usually suffers more transmitter/receiver band-
width limitation induced ISI and nonlinear penalty than m-ary DPSK which may be
regarded as a constant-amplitude format. Note that in principle, one can improve the
receiver sensitivity of hybrid formats based on DPSK and PAM (or ASK) by
arranging the signal constellation such that more DPSK phase states are assigned
at high power regime than at low power ...
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Publisher Resources

ISBN: 9780123741721