[PDF] Top 20 Performance of Polar Codes for OFDM Based UWB Channel
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Performance of Polar Codes for OFDM Based UWB Channel
... For multiuser detection in UWB indoor environment, a recently proposed spread spectrum multiple access scheme, Interleave Division Multiple Access (IDMA) was introduced in [6]. In this scheme, each user’s chip ... See full document
16
An efficient construction of polar codes based on the general partial order
... Polar codes [1] have attracted researchers from around the world since their introduction in ...[1], polar codes can achieve the channel capacity at a low encoding and decoding ... See full document
12
Secret Key Cryptosystem based on Non-Systematic Polar Codes
... of polar codes in secret in a way that the attacker cannot access the required information to decode the intended polar ...proposed based on non-systematic polar ...cryptosystems ... See full document
12
WiMAX Channel Decoders with VLSI Architectures
... different channel codes, namely convolutional-codes (CC), convolutional-turbocodes (CTC), block-turbo-codes (BTC), low-density-parity-check (LDPC) codes, and recently introduced, ... See full document
9
Improved Pilot Selection for Channel Estimation of Polar Codes in Wireless 5G
... all channel coding technology works in same ...in channel coding. Polar codes being used in 5G wireless standard due to provide great error correcting performance with low decoding ... See full document
6
Implementation of Polar Codes in 5g
... constructing codes that achieves the symmetric capacity, (the capacity of the channel with the same probabilities for the inputs), I (W) , of any Binary Discrete Memoryless Channel W (BDMC) and this ... See full document
5
Low complexity WLMMSE channel estimator for MB OFDM UWB systems
... (MMSE) channel estimation scheme have been proposed for multiband orthogonal frequency division multiplexing ultra-wideband (MB-OFDM UWB) systems dealing with non-circular ...WLMMSE channel ... See full document
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Design and Performance of Cyclic Delay Diversity in UWB OFDM Systems
... sacrificing performance. Reference [8] evaluates the performance of space-time block code (STBC) and convolutional STBC (CC-STBC) on a series of channel models at di ff erent rates and concludes that ... See full document
8
IMAGE DUPLICATION AND ROTATION DETECTION METHODS FOR STORAGE UTILIZATION
... (LDPC) codes and turbo codes (TCs) are proposed to improve the bit error rate (BER) performance of a new orthogonal frequency-division multiplexing (OFDM) system based on discrete ... See full document
9
Evaluation Of The Performance Of UWB MB-OFDM System Under Four Indoor Channel Models Of IEEE802.15.4a Under Noisy Channel Conditions
... MB-OFDM UWB based system divides the entire bandwidth into sub bands each with least bandwidth of 500MHz that forms short interval ...for UWB like Short-range communications with extremely ... See full document
5
Genetic Algorithm Based Optimizing Channel Equalization in OFDM using Alamouti Codes
... - OFDM is generally employed for communication system by reason of its high transmission rate, high spectral efficiency, low sensitivity to time synchronization errors and it is robust against inter symbol ... See full document
8
Multi user Detection Schemes for TH PPM UWB System using LDPC Codes
... The performance comparisons of the MMSE based TH PPM under UWB Channels conditions are done using Monte Carlo simulations. Figure 1. shows the block diagram of the simulation model of the proposed ... See full document
6
System Model of Underground UWB Based on MB OFDM
... In the figure, we can obviously observe multipath clusters which are verified with the actual measure- ment of UWB multipath clusters. This is a typical re- sult of multi-path fading channel. Then we can ... See full document
6
Performance Evaluation of DWT-OFDM and DFT-OFDM in Multipath PLC Channel
... Consequently, DWT-OFDM does not require P/S in the transmitter and S/P in the receiver. In our study, wavelets such as Daubechies (db) and Symlet (sym) are evaluated. When analysis bank is exchanged with the ... See full document
6
An Underwater Acoustic Implementation of DFT-Spread OFDM
... the OFDM system su ff ers a number of drawbacks, one of them is high peak-to-average power ratio, since the OFDM systems transmit signal resulting from the super- position of a large number of independent ... See full document
6
PARALLEL PROCESSING BASED TURBO DECODER DESIGN USING VERTIBI ALGORITHM
... The turbo encoder is employed to increase the free distance of the turbo code, hence improving its error-correction performance. A Design of Turbo encoder and decoder. In data transmission, turbo coding helps ... See full document
6
MODELING OF BROADBAND LIGHT SOURCE FOR OPTICAL NETWORK APPLICATIONS USING FIBER NON LINEAR EFFECT
... a UWB system based on OFDM is to combine the modulation technique with a multibanding approach [15], which divides the spectrum into several sub-bands, whose bandwidth is approximately 500 MHz [16], ... See full document
15
Adaptive Switching between Space Time and Space Frequency Block Coded OFDM Systems in Rayleigh Fading Channel
... block codes (STBC) and space-frequency block codes (SFBC) in OFDM systems over time-varying and frequency-selective ...superior performance in fast varying channels while STBC shows better ... See full document
8
Application of Multiple Antenna Channel Coded OFDM Schemes in Power Line Communication
... the performance evaluation of the proposed sytems, a simulation was developed in ...(BER) performance of the mutiple antenna coded OFDM schemes, ...fading channel (using the deterministic-one ... See full document
5
Near-Capacity Coding for Discrete Multitone Systems with Impulse Noise
... In our case, however, assuming that the all-zero code- word is transmitted is not valid because the points of the constellation are not all equivalent. To tackle this problem, we first notice that for an LDPC code of ... See full document
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