low bit-error rate
Low Bit Error Rate Based Communication by IEEE 802 15 4
... data rate for the DS system is 1Mbps encoded with differential binary phase shift keying ...2Mbps rate is provided using differential quadrature phase shift keying (DQPSK) at the same chip rate of 11 ...
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Design of Simulink Model for Constant Envelop OFDM & Analysis of Bit Error Rate
... per bit) in AWGN ...sampling rate of 10 KHz and symbol mapping is done using 4-PAM ...high rate PAM symbol stream is converted to 64 low rate substreams by serial to parallel ...and ...
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Approximate Minimum Bit Error Rate Equalization for Fading Channels
... complexity. On the other hand, very complex equalizer schemes have been proposed for DS-CDMA systems in [9–11]. Paper [12] investigates the minimization of BER in MIMO systems with linear equalizers based on QPSK mod- ...
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FUZZY ADAPTIVE CODED MODULATION IN WIRELESS NETWORK USING BIT ERROR RATE.
... a low rate data ...many low data rate users can be combined together to transmit in a single channel which has a bandwidth sufficient so that the spectrum can be used ...
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ABSTRACT MSER equalizer is derived based on the Bit Error Rate or Symbol Error Rate objective function, Due to
... the bit error rate (BER) or SER objective function, which are for BPSK sources and QAM sources, ...has low complexity; it does not require knowledge of the channel or noise power; it has good ...
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Channel estimation algorithms and bit error rate analysis of cognitive radio
... as low cost, adaptable wireless communication devices operated in real time using a processor or programmable silicon as hardware base and supported by a software architecture ...
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FUZZY ADAPTIVE CODED MODULATION IN WIRELESS NETWORK USING BIT ERROR RATE
... a low rate data ...many low data rate users can be combined together to transmit in a single channel which has a bandwidth sufficient so that the spectrum can be used ...
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Bit Error Rate of Orthogonal Frequency Division Multipexing System
... of low bit rate carriers transmitting in parallel ...data rate without inter symbol interference and it is one of the main technique employed in 4th generation wireless communication ...
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Definition of Bit Error Rate on 16 channel DWDM system
... The first possibility how to get light to the multiplexer is to have several laser sources radiated on certain frequencies. Laser source has to be modulated by the modulation signal (information signal) and then lead to ...
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Dual Tree Wavelet based OFDM: A Performance Calculation of Bit Error Rate
... The orthogonal frequency division multiplex (OFDM), the modulation concept being used for many wireless and radio communications radio applications from DAB, DVB, Wi-Fi and Mobile Video. OFDM is a multi-carrier ...
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Comparison of Bit Error Rate for Multipath Fading Channel in DS CDMA
... multiplied by time-shifted versions of a locally generated code sequence. To maximize the Signal to Noise Ratio (SNR) and minimize the Bit Error Rate (BER) the CDMA Rake receiver is used. The aim of ...
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A Fast Soft Bit Error Rate Estimation Method
... number of components is too low, the corresponding pdf will be too smooth and then the BER less reliable. On the other hand, if this number is too high, this means that the same class of observed samples comes ...
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Improved Adaptive Bit Error Rate Performance for Fading Channel Communication
... the bit error rate performance characteristics of equalizers namely, ZF,SD, ML, MMSE ,DFE, and MLSE ...at low BERs, both the MLSE algorithm and the DFE algorithm suffer from error ...
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A Review on Bit Error Rate Detection using Carrier offset in MIMO-OFDM
... In order to implement a MIMO communication system, we must first select a particular coding scheme. Most space- time coding schemes have a strong connection to well-known single-input single-output (SISO) coding ...
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Bit error rate performance enhancement of orthogonal frequency division multiplexing
... no bit errors, since we stated before that we have ignored the effects of background ...is low, the BER increases exponentially with the normalized ...
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Bit Error Rate Performance in Coherent Optical Systems
... transmitted bit error is generally termed as ...predefined bit-error rate (BER) ...Although bit error rates are typically on the order of 10 -6 to 10 -9 at 155 Mb/s, this ...
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Feature extraction for very low bit rate video coding
... The range of orientations over which the extended feature should be looked for can be quite large. Two features on a curved object boundary can easily have a 45 degree dierence in orientation, which makes the search ...
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Universal steganography model for low bit-rate speech codec
... Low bit-rate speech codec offers so many advantages over other codecs that it has become increasingly popular in audio communications such as mobile and VoIP (Voice over Internet Protocol) ...
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Bit Error Rate Calculation Method for Multiple-hop Relay Systems
... Understandably, the BER of QPSK is smaller meaning better than that of 8PSK, however we would like to focus on the optimal number of relays in the sense of the best BER of whole system. In case of QPSK, the optimal ...
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Bit Error Rate Reduction Using SLM in Reception of FRFD in OFDM Systems
... the low density parity check (LDPC) encoder symbols are converted into ...with bit-interleaved coded modulation (BICM) giving good diversity results in a wireless communication link ...
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