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4,665
Fuzzy Logic- An Approach for BER Performance
"... Abstract-In this paper, Bit Error Rate (BER) performance is observed over Nakagami fading channel for different values of threshold using fuzzy logic. Threshold based Generalized Selection Combining technique (T-GSC) is the method which combines only those branches at receiver whose energy levels ar ..."
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Abstract-In this paper, Bit Error Rate (BER) performance is observed over Nakagami fading channel for different values of threshold using fuzzy logic. Threshold based Generalized Selection Combining technique (T-GSC) is the method which combines only those branches at receiver whose energy levels
IMPROVEMENT IN BER PERFORMANCE BY
"... During the research equalizer is always a matter of strategies.When a signal is transmitted over a radio channel,it is subject to reflection,refraction and diffraction and also the type of modulation technique selected at transmitter.The communication environment changes quickly and thus introduce m ..."
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sensivity to fading,hence leading to a breakthrough in the data rate of wireless communication system.Since than multiple input multiple output(MIMO) system has become one of the major focuses in the research community of wireless communication and information theory.The study of performance limit
Effect of varying Threshold over BER Performance
"... Abstract-In this paper, Bit Error Rate (BER) performance is analyzed using different value of threshold over varying Nakagami fading parameter channel. Simulations have been carried out using MATLAB for multiple co-channel interferers under Rayleigh and Nakagami fading conditions using Binary Phase ..."
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Abstract-In this paper, Bit Error Rate (BER) performance is analyzed using different value of threshold over varying Nakagami fading parameter channel. Simulations have been carried out using MATLAB for multiple co-channel interferers under Rayleigh and Nakagami fading conditions using Binary Phase
Near Shannon limit error-correcting coding and decoding
, 1993
"... Abstract- This paper deals with a new class of convolutional codes called Turbo-codes, whose performances in terms of Bit Error Rate (BER) are close to the SHANNON limit. The Turbo-Code encoder is built using a parallel concatenation of two Recursive Systematic Convolutional codes and the associated ..."
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Cited by 1776 (6 self)
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Abstract- This paper deals with a new class of convolutional codes called Turbo-codes, whose performances in terms of Bit Error Rate (BER) are close to the SHANNON limit. The Turbo-Code encoder is built using a parallel concatenation of two Recursive Systematic Convolutional codes
Iterative decoding of binary block and convolutional codes
- IEEE TRANS. INFORM. THEORY
, 1996
"... Iterative decoding of two-dimensional systematic convolutional codes has been termed “turbo” (de)coding. Using log-likelihood algebra, we show that any decoder can he used which accepts soft inputs-including a priori values-and delivers soft outputs that can he split into three terms: the soft chann ..."
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Cited by 610 (43 self)
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for lower rates less than 213. Any combination of block and convolutional component codes is possible. Several interleaving techniques are described. At a bit error rate (BER) of lo- * the performance is slightly above or around the bounds given by the cutoff rate for reasonably simple block
BER Performance of Joint THP/pre-FDE
"... Abstract—Recently, frequency-domain equalization (FDE) based on the minimum mean square error (MMSE) criterion has been attracting much attention to overcome the frequency-selective fading channel. The bit error rate (BER) performance of singlecarrier (SC) transmission is significantly improved by u ..."
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Cited by 2 (2 self)
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Abstract—Recently, frequency-domain equalization (FDE) based on the minimum mean square error (MMSE) criterion has been attracting much attention to overcome the frequency-selective fading channel. The bit error rate (BER) performance of singlecarrier (SC) transmission is significantly improved
BER Performance Evaluation of GMSK for Fading Mobile Channels
"... Abstract — Digital modulation plays a significant role in efficient wireless communication. It allows the transmission of digital data via air on high frequency carrier waves. The worst case communication channel is usually in the urban environment where there are many obstacles. Due to the obstacle ..."
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performance of GMSK system under different channel models i.e. AWGN, Rayleigh and Rician fading channels. Subsequently, a comparative study is carried out to obtain the BER performance for BPSK and QPSK under fading mobile channels. The comparative study showed that BER for BPSK and QPSK are similar
BER Performance Comparison of MIMO OFDM with channel equalizers
"... MIMO-OFDM technology is a combination of multiple-input multiple-output (MIMO) antenna technology with orthogonal frequency division multiplexing (OFDM). This technique has shown its importance to support high data rate and high performance in different channel conditions. Space time block coding sc ..."
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estimation. The BER performance, spectral efficiency and capacity are the prime parameter to evaluate the performance of any communication system. The performance comparisons is shown in result section.
BER Performance Comparisons In Digital Tape Recording
"... Bit-error-rate (BER) performances of various DC free coding and detection methods have been compared in digital tape recording environments. Performance sensitivities to additive noise, head-tape space variations and offtrack interference have been investigated at two representative linear densities ..."
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Bit-error-rate (BER) performances of various DC free coding and detection methods have been compared in digital tape recording environments. Performance sensitivities to additive noise, head-tape space variations and offtrack interference have been investigated at two representative linear
CIR and BER Performance of STFBC in MIMO OFDM System
, 2011
"... Abstract: In multiple input multiple output (MIMO) orthogonal frequency division multiplexing (OFDM) system, inter carrier interference (ICI) which generates by frequency offset (FO) degrades the system performance. The objective of this research is to compensate integrated effect of FO the space t ..."
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) are derived theoretically. CIR and Bit Error Rate (BER) performance of the proposed system are analyzed. As results, it can be shown that by choosing appropriate subcarrier mapping combining with ICI-SC methods, performance improvement can be achieved in the MIMO OFDM system which affected by FO.
Results 1 - 10
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4,665
