Sciweavers

Share
TCOM
2010

Iterative Multisymbol Noncoherent Reception of Coded CPFSK

9 years 8 months ago
Iterative Multisymbol Noncoherent Reception of Coded CPFSK
—A multisymbol noncoherent receiver suitable for coded continuous-phase frequency-shift keying is developed and analyzed. Unlike coherently detected signals, the modulation index of the waveform does not need to be rational with a small denominator, and the oscillator only needs to be stable for the duration of a small group of symbols. The receiver is analyzed in terms of its symmetric information rate, demonstrating its potential when a capacity-approaching code is used and enabling the joint optimization of code rate and modulation index under a bandwidth constraint. The information-theoretic results are corroborated by bit-error-rate curves generated using a standardized turbo code in conjunction with iterative demodulation and decoding. It is shown that, while more robust than a system with coherent reception, the proposed system offers superior energy efficiency compared with conventional singlesymbol noncoherent reception.
Matthew C. Valenti, Shi Cheng, Don J. Torrieri
Added 30 Jan 2011
Updated 30 Jan 2011
Type Journal
Year 2010
Where TCOM
Authors Matthew C. Valenti, Shi Cheng, Don J. Torrieri
Comments (0)
books