A new analytical tool for evaluating the bit error rate of trellis coded modulation in Rician fading channel

2002 ◽  
Author(s):  
Jae Hyung Kim ◽  
P. Ho ◽  
J.K. Cavers
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Fading Channel ◽  
Coded Modulation ◽  
Analytical Tool ◽  
Rician Fading ◽  
Trellis Coded Modulation ◽  
Trellis Coded ◽  
Rician Fading Channel

scholarly journals Communication Link Model using Trellis Coded Modulation for 5G Communication in The Tropical Regions

2020 ◽  
Author(s):  
Trilochan Patra ◽  
Swarup Kumar Mitra
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Rayleigh Fading ◽  
Coded Modulation ◽  
Rician Fading ◽  
Communication Link ◽  
Trellis Coded Modulation ◽  
Tropical Regions ◽  
Trellis Coded ◽  
Link Model

Abstract Signal fading is a major problem in the tropical regions. Here the signals get highly attenuated for torrential rain, hence the signal power diminishes and the bit error rate (BER) increases. To enhance the signal to noise ratio (SNR) or to minimize the BER a communication link model using trellis coded modulation (TCM) for 5G communication has been proposed in this paper for the tropical regions. Various diversity techniques have been applied to minimize BER in the tropical regions. STBC (Space-Time Block Coding) MIMO technique is a spatial diversity technique which has been used in the proposed model in this paper. Bit error rate values are obtained for MIMO multi path fading distributions viz. Rayleigh fading distribution and Rician fading distribution. BER values are also attained in respect of different MIMO techniques (2x2, 3x3 and 4x4). The 4x4 STBC MIMO System has been generated using hardware co-simulation block and the results are implemented in Xilinx kintex-7 FPGA board. From the analysis of the result it is observed that Rayleigh fading distribution reflects better performance than that of Rician fading distribution. 4x4 MIMO Technique renders better result in comparison with that of lower MIMO techniques.

scholarly journals Communication Link Model Using Trellis Coded Modulation for 5G Communication in the Tropical Regions

2020 ◽  
Author(s):  
Trilochan Patra ◽  
Swarup Kumar Mitra
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Rayleigh Fading ◽  
Coded Modulation ◽  
Rician Fading ◽  
Communication Link ◽  
Trellis Coded Modulation ◽  
Tropical Regions ◽  
Trellis Coded ◽  
Link Model

Abstract Signal fading is a major problem in the tropical regions. Here the signals get highly attenuated for torrential rain, hence the signal power diminishes and the bit error rate (BER) increases. To enhance the signal to noise ratio (SNR) or to minimize the BER a communication link model using trellis coded modulation (TCM) for 5G communication has been proposed in this paper for the tropical regions. Various diversity techniques have been applied to minimize BER in the tropical regions. STBC (Space-Time Block Coding) MIMO technique is a spatial diversity technique which has been used in the proposed model in this paper. Bit error rate values are obtained for MIMO multi path fading distributions viz. Rayleigh fading distribution and Rician fading distribution. BER values are also attained in respect of different MIMO techniques (2x2, 3x3 and 4x4). The 4x4 STBC MIMO System has been generated using hardware co-simulation block and the results are implemented in Xilinx kintex-7 FPGA board. From the analysis of the result it is observed that Rayleigh fading distribution reflects better performance than that of Rician fading distribution. 4x4 MIMO Technique renders better result in comparison with that of lower MIMO techniques.

Error Probability for Coherent Modulations in Rician Fading Channel

2010 ◽  
pp. 1741-1752
Author(s):  
A. Chandra ◽  
C. Bose
Keyword(s):  
Error Rate ◽  
Fading Channel ◽  
Error Probability ◽  
Error Rates ◽  
Rician Fading ◽  
Average Error ◽  
Valuable Insight ◽  
Rician Fading Channel ◽  
Modulation Schemes ◽  
Error Probabilities

Simple closed-form solutions for the average error rate of several coherent modulation schemes including square M-QAM, DBPSK and QPSK operating over slow flat Rician fading channel are derived. Starting from a novel unified expression of conditional error probability the error rates are analysed using PDF based approach. The derived end expressions composed of infinite series summations of Gauss hypergeometric function are accurate, free from any numerical integration and general enough, as it encompasses as special situations, some cases of non-diversity and Rayleigh fading. Error probabilities are graphically displayed for the modulation schemes for different values of the Rician parameter K. In addition, to examine the dependence of error rate performance of M-QAM on the constellation size, numerical results are plotted for various values of M. The generality of the analytical results presented offers valuable insight into the performance evaluation over a fading channel in a unified manner.

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