Abstract
Trellis-coding techniques are considered as a means of improving the reliability of 8-PSK (phase-shift keying). It is shown that the combination of a rate 2/3 convolutional code and 3-b interleavers provides a good modulation/coding method for the Rayleigh channel. The author proposes a suboptimal coded system that combines a regular convolutional code, bit interleaving, and an appropriate decoding technique. The bounds on the error performance of this approach indicate that the best convolutional code in conjunction with 8-PSK modulation and appropriate soft-decision metric is an attractive means of improving the reliability. In particular, over a Rayleigh channel this system requires Eb/N0 of about 14.5 dB to provide a bit-error rate of 10-5 (for a code with 64 states), which is 1.2 dB less than the requirement for the baseline system, which uses the optimal trellis codes for the Rayleigh channel.
| Original language | English |
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| Pages | 536-540 |
| Number of pages | 5 |
| State | Published - 1989 |
| Externally published | Yes |
| Event | IEEE Military Communications Conference - MILCOM '89. Part 1 - Boston, MA, USA Duration: 15 Oct 1989 → 18 Oct 1989 |
Conference
| Conference | IEEE Military Communications Conference - MILCOM '89. Part 1 |
|---|---|
| City | Boston, MA, USA |
| Period | 15/10/89 → 18/10/89 |