Frame Synchronization for Noncoherent Demodulation on Flat Fading Channels

A New Method for Block Demodulation without Channel Estimation

For communication channels exhibiting fading and interference, noncoherent maximum likelihood (ML) block demodulation generally requires the knowledge of received signal strength, fading levels, and the phase offset introduced by the channel. Furthermore, ML block demodulation can be computationally prohibitive. This paper presents a sub-optimal block demodulation method based on a computationa...

Joint noncoherent demodulation and decoding for fast Rayleigh fading channels

Performance of trellis-coded CPM with iterative demodulation and decoding

Interleaved trellis-coded systems with full response continuous-phase modulation (CPM) are considered. Upper bounds on the bit-error rate performance are derived for coherent detection on the additive white Gaussian noise and flat Rayleigh fading channels by considering the trellis code, interleaver, and CPM modulator as a serially concatenated convolutional code. A coherent receiver that perfo...

Differential space-time modulation - coding and capacity results

In this paper, powerful coding techniques for differential space-time modulation (DSTM) over Rayleigh flat fading channels and noncoherent demodulation without channel state information at the receiver are investigated. In particular, multilevel coding (MLC), bit-interleaved coded modulation (BICM), and so-called hybrid coded modulation (HCM) are devised and compared using capacity arguments. F...

Noncoherent detection of factor graph codes over fading channels

In this paper we consider noncoher ent multi symbol detection of factor graph codes over Rayleigh fading channels We use block di erential encoding together with a joint demodulation and it erative decoding algorithm to eliminate the pilot over head required for coherent detection Simulations us ing turbo codes and repeat accumulate codes show that as the length of the coherence interval increa...