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
More filters
Signal Processing Techniques in Mobile Communication Systems : Signal Separation, Channel Estimation and Equalization
TL;DR: Several signal processing techniques for improving the performance and capacity of wireless mobile communications systems are discussed and their applicability and effectiveness were investigated by using several performance measures via Monte Carlo simulation approach.
Proceedings ArticleDOI
Pilot-aided rayleigh fading channel estimation using MMSE estimator for DS-CDMA system
TL;DR: A pilot-aided channel estimator for the direct-sequence code-division multiple-access (DS-CDMA) communication system based on the minimum mean-square error (MMSE) estimate of the attenuated antipodal transmitted signals in the presence of both fading and noise is developed.
Proceedings ArticleDOI
Performance comparison of LS, LMMSE and Adaptive Averaging Channel Estimation (AACE) for DVB-T2
Spiridon Zettas,Pavlos I. Lazaridis,Zaharias D. Zaharis,Stylianos Kasampalis,Neeli R. Prasad,Ian Glover,John Cosmas +6 more
TL;DR: Simulations clearly show that the performance of the AACE-LS is superior to the conventional LS estimator and is near to theperformance of the LMMSE with no need of a prior knowledge of the statistics and the noise of the channel and thus if the channel is unknown to the receiver, the A ACE is a good choice.
Proceedings ArticleDOI
Iterative decoding and channel estimation of DS/CDMA over slow Rayleigh fading channels
TL;DR: This work investigates the application of joint decoding and channel estimation for DS/CDMA transmission over slow Rayleigh fading channels and proposes some alternative sub-optimum schemes with polynomial complexity.
Dissertation
Joint Source-Channel Coding for Image Transmission over Flat Fading Channels
TL;DR: This thesis considers transmission of images over a at fading channel using joint source-channel coding (JSCC) using nonlinear dimensional changing mappings, which results in a performance comparable to state-of-the-art systems but with less complexity.
References
More filters
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.