4 edition of A concatenated Reed-Solomon-encoded PSK system for Rayleigh fading channels found in the catalog.
A concatenated Reed-Solomon-encoded PSK system for Rayleigh fading channels
Thesis (M.A.Sc)--University of Toronto, 1993.
|Series||Canadian theses = Thèses canadiennes|
|The Physical Object|
|Pagination||2 microfiches : negative.|
Space-Time Coding Space-Time Coding Branka Vucetic and Jinhong Yuan c John Wiley & Sons, Ltd ISBN: Rayleigh fading model: Rayleigh fading models assume that the magnitude of a signal that has passed through such a transmission medium (also called a communications channel) will vary randomly, or fade, according to a Rayleigh distribution — the radial component of the sum of two uncorrelated Gaussian random variables.
Average BER on a single path fading channel with LOS (Rice fading), with and without the application of a turbo code. Full size image Figure 16 evidences the improvement achievable by using the turbo code: at BER = 10 −3, the simulated coding gain . Coding for MIMO Communication Systems Coding for MIMO Communication Systems Tolga M. Duman and Ali Ghrayeb John Wiley & Sons, Ltd. ISBN:
Fractional-rate hybrid PSK-TCM codes for the Rayleigh fading channel.- Increased capacity of DS-CDMA mobile systems on frequency-selective slow fading channels.- Design and performance of an 8-dimensional modulation scheme.- Analysis of successive interference cancellation in M-ary Orthogonal DS-CDMA system with single path Rayleigh fading Transmit Reed-Solomon encoded data using 8-PSK over an AWGN channel.
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Rayleigh channel at BER requires Uncoded with QPSK 2 dB 35 dB RS-TCM dB 14 dB BCH-TCM 4 dB dB Table 1: Performance of concatenated codes in AWGN and Rayleigh Channel.
CONCLUSION In this paper, BCH and TCM concatenated system for 8PSK modulation has been proposed. Simulation results showAuthor: Prithi Pavale.
This includes concatenated system in which outer code is BCH and inner code TCM. The proposed concatenated system provides bandwidth efficiency compared to concatenated RS-TCM system. The simulated results show that significant coding gain by the proposed system over Additive White Gaussian Noise (AWGN) and Rayleigh fading : Prithi Pavale.
Concatenated Differential Space-Time Block Codes and Four Dimensional 8-PSK Trellis Coded Modulation for Wireless MIMO system with Rayleigh fading Article (PDF Available). BER performance of the concatenated code with modulation inner codes and the (, ) RS outer code on a Rayleigh channel (solid: 4-state inner Ungerboeck TCM with parallel transitions; dash: 4-state inner BCM with parallel transitions).
achieves a coding gain of 37 dB relative to the reference uncoded QPSK system at a BER of while the Cited by: 9. In this paper, new non-coherent space-time block code (STBC) based on concatenated inner STBC and outer four dimensional 8-PSK trellis coded modulation (4DPSK-TCM) encoder is designed for quasi static Rayleigh fading channel.
The code design method achieves a diversity order of 4 with two transmit and two receive antennas. Firstly, we demonstrate that the proposed 4D-TCM-STBC scheme. In this paper, construction of partitioned Reed Solomon coded modulation (RSCM) which is robust for the additive white Gaussian noise channel and a Rayleigh fading channel is investigated.
Fig. shows the BER performance of the scheme without the guard subcarrier over the flat Rayleigh fading performances of a conventional SFBC-OFDM system and a single antenna OQAM/FBMC system are presented for comparison.
The SFBC-OFDM system performs SFBC coding over adjacent subcarriers, which is different from the block coding in the block-wise SFBC-based OQAM/FBMC system.
Concatenated space-time block coding with trellis coded modulation in fading channels Article (PDF Available) in IEEE Transactions on Wireless Communications 1(4) - November with. BER performances of coded WOFDM systems with MLC/MSD are investigated on AWGN and Rayleigh fading channels respectively.
In the MLC scheme, BCH codes of length are employed as component codes. We use an asymmetric 8-PSK signal sets in the 4-state rate 2/3 trellis-coded modulation concatenated with space-time block coding (TCM-STBC) scheme for fast fading channels, and show performance gain over TCM-STBC scheme with symmetric 8-PSK constellations.
The performance gain is due to an increase in the minimum product-sum distance and free distance of trellis code compared to that of the. Concatenated codes using multilevel structures for PSK signalling over the Rayleigh fading channel Abstract: The authors investigate the application of concatenated codes to the Rayleigh fading channel using M-PSK modulation.
To obtain a variety of diversity levels, the authors propose several concatenated schemes where the inner codes are. The book presents a comprehensive view of channel degradation arising from fading and shadowing.
and an improved reference model is proposed for the simulation of Rayleigh fading channels. Performance comparison of four types of the SC-ST codes (2 b/s/Hz, 2T1R), in a flat Rayleigh fading channel (f D T S = 1/).
2T1R) after six decoding iterations. Based on this obser- vation, the 8-state TSC ST code was selected as the inner code of the serially concatenated 4-PSK ST coding system in the other experiments.
In rapid fading channels, the system S 21 provides better BER performance than those of the Tujkovic's serial concatenated ST system presented in, which employs an interleaver of length bits and 6 iterations, and the system with [1, 1 + D] outer and Tarokh-RD inner code (Fig.
turbo codes channel capacity concatenated codes decoding diversity reception interleaved codes phase shift keying quadrature amplitude modulation Rayleigh channels trellis coded modulation turbo trellis coded modulation design parallel-concatenated codes Rayleigh fading channels symbol-based union bound in-phase interleavers quadrature-phase.
3. Concatenated coding system. The source–channel coding theorem [8, Theorem ] which applies stationary sources and discrete memoryless channels, states that source code and channel codes can be designed separately and then concatenated to achieve optimal performance.
However, the sources and channels considered here are not stationary or memoryless. Asymptotic BER bounds for BICM-based multiple relay cooperative network under AWGN and rayleigh fading channels Tanoli, S.A.K., Khan, I., Rajatheva, N. Details. The adaptive scheme employs a family of RS codes of different rates and multiple phase shift keying (MPSK) modulation schemes according to the states of the channel.
This uses a channel estimator to select the most appropriate codulation (coded-modulation) scheme. In this study, the authors present a method to design efficient full-rate linear dispersion space-time block codes (LD-STBCs) in correlated Rayleigh fading channels with simple detection at the receiver.
The authors first derive a formula for the achievable capacity of an LD-STBC coded multi-input multiple-output (MIMO) system as a function of correlation at the transmitter and the receiver. compared over Rayleigh fading channel. General Terms Rayleigh Fading Model for RS and BCH Code.
Keywords RS Code, BCH Code, Rayleigh Fading Channel, Modulation. INTRODUCTION ary modulation in a communication noisy channel (AWGN).
Whenever communication takes place, data needs to be transmitted, be it human beings or computers. diversity, moment generating function, rayleigh fading channel, rotating signal constellation. I. INTRODUCTION Fading is an important issue in wireless communication channels.
This causes significant degradation of the performance of wireless digital communication systems. High rate date transmission need s to combat fading effects in the channel. The codes are especially suited for data transmission in the Rayleigh fading channel, e.g. for mobile communication.
Our basic idea is to use periodically different signal alphabets (MPSK and 2M-PSK) for transmission. The resulting hybrid TCM codes show improved performance in the Rayleigh fading channel compared to known TCM-schemes.CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Abstract—We consider a stationary Rayleigh flat-fading chan-nel with temporal correlation and a compactly supported power spectral density of the channel fading process.
We assume that the channel state is unknown to both transmitter and receiver, while the law of the channel is presumed to be known to the receiver.