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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Da-Shan Shiu Kahn, J.M. |
| Copyright Year | 1998 |
| Description | Author affiliation: California Univ., Berkeley, CA, USA (Da-Shan Shiu) |
| Abstract | Current results of shaping and non-equiprobable signaling developed for conventional electrical signals do not apply to intensity-modulated (IM) signals. We show that for IM signals the optimum shape of the constellation bounding region in N-dimensional (N-D) space is an N-D simplex. As N/spl rarr//spl infin/, the maximum achievable shape gain is 1.33 dB in transmitted power, and the resulting marginal signaling distribution on the 1-D constituent constellation is exponential. We also investigate the trade-offs between shaping and its negative effects and find that a 1-dB shape gain can be achieved while incurring reasonable increases in peak-to-average power ratio and constellation expansion factor. |
| Starting Page | 213 |
| Ending Page | 218 |
| File Size | 438031 |
| Page Count | 6 |
| File Format | |
| ISBN | 0780349849 |
| DOI | 10.1109/GLOCOM.1998.775726 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1998-11-08 |
| Publisher Place | Australia |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Shape Intensity modulation Constellation diagram Optical transmitters Gain Peak to average power ratio Lattices Baseband Optical fiber communication Signal to noise ratio |
| Content Type | Text |
| Resource Type | Article |
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