Journal ArticleDOI
An analysis of pilot symbol assisted modulation for Rayleigh fading channels (mobile radio)
TLDR
In this paper, the bit error rate in binary-phase-shift-keying (BPSK) and in quadrature phase-shift keying (QPSK), for a tight upper bound on the symbol error rate for 16-QAM was presented.Abstract:
The author presents pilot-symbol-assisted modulation (PSAM) on a solid analytical basis, a feature missing from previous work. Closed-form expressions are presented for the bit error rate (BER) in binary-phase-shift-keying (BPSK) and in quadrature-phase-shift-keying (QPSK), for a tight upper bound on the symbol error rate in 16 quadrature-amplitude-modulation (16-QAM), and for the optimized receiver coefficients. The error rates obtained are lower than for differential detection for any combination of signal-to-noise ratio (SNR) and Doppler spread, and the performance is within 1 dB of a perfect reference system under slow-fading conditions and within 3 dB when the Doppler spread is 5% of the symbol rate. >read more
Citations
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Journal ArticleDOI
Space-time spreading and block coding for correlated fading channels in the presence of interference
TL;DR: This work considers point-to-point wireless links with multiple antennas in the presence of interference, and exploits channel's spatial correlation and the temporal covariance of the interference to design multiantenna transmitters and develops low-complexity receivers.
Proceedings ArticleDOI
Iterative Receiver for MIMO-OFDM Systems with Joint ICI Cancellation and Channel Estimation
Rui Li,Yonghui Li,Branka Vucetic +2 more
TL;DR: Simulation results show that the proposed MIMO-OFDM iterative receiver can effectively mitigate the effect of ICI and approach the ICI-free performance over time-varying frequency-selective fading channels.
Proceedings ArticleDOI
Performance of turbo codes in multipath fading channels
TL;DR: Two channel estimation techniques are applied, namely, the pilot tone technique and the pilot symbol assisted modulation technique, to obtain channel side information for decoding of turbo codes in fading multipath channels.
Proceedings ArticleDOI
Particle Swarm Enhanced Graph-Based Channel Estimation for MIMO-OFDM
TL;DR: Numerical results validate the performance enhancement of MOPSO initialization integrated within a graph-based iterative receiver and show it works well in rank-deficient scenarios with arbitrary training sequences.
Journal ArticleDOI
On channel estimation for spatial modulated systems over time-varying channels
TL;DR: Computer simulation results have confirmed that the proposed iterative channel estimation technique has significant BER/MSE performance advantages compared with existing channel estimation algorithm proposed earlier in the literature.
References
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Digital communications
TL;DR: This month's guest columnist, Steve Bible, N7HPR, is completing a master’s degree in computer science at the Naval Postgraduate School in Monterey, California, and his research area closely follows his interest in amateur radio.
Book
Mobile Communications Engineering
TL;DR: In this article, the authors describe the characteristics of mobile radio signals and apply statistical communication theory to propagation and received signal characteristics, and provide a discussion of system performance and how to evaluate a new system.
Journal ArticleDOI
TCMP-a modulation and coding strategy for Rician fading channels
M.L. Moher,J.H. Lodge +1 more
TL;DR: TCMP is a novel modulation strategy for Rician fading channels that multiplexes a time domain pilot sequence with trellis-coded data to permit coherent detection and is shown to provide remarkably robust performance in the presence of fading.
Proceedings ArticleDOI
Rayleigh fading compensation method for 16QAM in digital land mobile radio channels
S. Sampei,T. Sunaga +1 more
TL;DR: In this paper, a Rayleigh fading compensation method for 16-QAM was proposed, where second-order interpolation was used for the fading compensation, and the degradation due to the proposed fading compensation was about 2 dB.