Journal ArticleDOI
Simulation and performance of the pan-European land mobile radio system
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TLDR
In this paper, the authors consider the performance of the compact-spectrum constant-envelope modulation chosen by ETSI/GSM, together with concatenated block and convolutional coding, Viterbi adaptive equalization, and soft-decision decoding to cope with the severe time and frequency-selective distortions caused by propagation phenomena, properly modeled for computer simulation.Abstract:
The introduction of the European Telecommunications Standards Institute/Groupe Special Mobiles (ETSI/GSM) digital land mobile radio system has required the study and application of advanced transmission techniques, necessary to meet the quality objectives in very demanding environments. In particular, the authors consider the performance of the compact-spectrum constant-envelope modulation chosen by ETSI/GSM, together with concatenated block and convolutional coding, Viterbi adaptive equalization, and soft-decision Viterbi decoding to cope with the severe time- and frequency-selective distortions caused by propagation phenomena, properly modeled for computer simulation. Channel coding and adaptive equalization techniques, supported also by frequency hopping and diversity reception, are fundamental to operate the system with the required quality. >read more
Citations
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Journal ArticleDOI
Basis expansion models and diversity techniques for blind identification and equalization of time-varying channels
TL;DR: Novel algorithms are developed for blind identification, direct, zero-forcing equalization and minimum mean square error (MMSE) equalization by combining channel diversity with temporal (fractional sampling) and/or spatial diversity which becomes available with multiple receivers.
Journal ArticleDOI
Estimation and equalization of fading channels with random coefficients
TL;DR: Kalman filtering methods are derived to track the channel by employing a multichannel autoregressive description of the time-varying taps in a decision-feedback equalization framework using higher-order statistics in order to estimate the model parameters from input/output data.
Journal ArticleDOI
Optimal decorrelating receivers for DS-CDMA systems: a signal processing framework
TL;DR: A discrete-time multirate formulation is introduced for asynchronous CDMA systems, which can incorporate multipath effects and reveals interesting links between CDMA receivers and array processing problems.
Journal ArticleDOI
Reduced-Complexity Approach to Iterative Detection of Coded SOQPSK
Erik Perrins,Michael Rice +1 more
TL;DR: This work develops a reduced-complexity approach for the detection of coded shaped-offset quadrature phase-shift keying (SOQPSK), a highly bandwidth-efficient and popular constant-envelope modulation, and gives a simple and convenient closed-form expression for a recursive binary-to-ternary precoder for SOQPSk.
Journal ArticleDOI
Maximum likelihood blind channel estimation in the presence of Doppler shifts
Hakan Ali Cirpan,M.K. Tsatsanis +1 more
TL;DR: Both deterministic and stochastic maximum likelihood methods are developed and iterative solutions proposed for simultaneously estimating the Doppler shift and channel parameters in a blind setup.
References
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Book
Microwave Mobile Communications
William C. Jakes,Donald C. Cox +1 more
TL;DR: An in-depth and practical guide, Microwave Mobile Communications will provide you with a solid understanding of the microwave propagation techniques essential to the design of effective cellular systems.
Journal ArticleDOI
A statistical theory of mobile-radio reception
TL;DR: In this article, the statistical characteristics of the fields and signals in the reception of radio frequencies by a moving vehicle are deduced from a scattering propagation model, assuming that the field incident on the receiver antenna is composed of randomly phased azimuthal plane waves of arbitrary angle angles.
Journal ArticleDOI
Statistical properties of a sine wave plus random noise
TL;DR: A number of statistical properties of such a current which consists of a sinusoidal component plus a random noise component are given here.
Journal ArticleDOI
Adaptive Maximum-Likelihood Receiver for Carrier-Modulated Data-Transmission Systems
TL;DR: A uniform receiver structure for linear carrier-modulated data-transmission systems is derived which for decision making uses a modified version of the Viterbi algorithm, which operates directly on the output signal of a complex matched filter and requires no squaring operations.