turbo coded modulation systems
Reduced Complexity I/Q Turbo Detection for Space Time Trellis Coded Systems
... In the third-generation (3G) mobile radio standard [1], a transmit diversity option has been proposed for increasing the link quality and, therefore, the capacity of the system. Spatial diversity may be achieved with the ...
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Turbo Coded Adaptive Modulation Versus Space Time Trellis Codes for Transmission over Dispersive Channels
... these systems have been determined experi- mentally, but they are not claimed to be ...high-rate turbo codes with the aid of puncturing, the interested reader is referred to ...Different modulation ...
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A Proposed Turbo Coded Wavelet Packet Modulation based MC CDMA
... convolutional coded PCCC data for both FFT MC-CDMA system and DWPT MC-CDMA system were ...mentioned systems with QAM modulation scheme of M-level of 2, 4, and16 are shown in figures [11, 12 and 13] ...
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Quadrature Amplitude Modulation: From Basics to Adaptive Trellis Coded, Turbo Equalised and Space Time Coded OFDM, CDMA and MC CDMA Systems
... The bit rate of each user can also be adapted according to the near-instantaneous channel quality, in order to mitigate the effects of channel quality fluctuations. Kim [660] analysed the performance of two different ...
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Improving the Performance of Turbo-Coded Systems under Suzuki Fading Channels
... The system model of Figure 1 was considered in the analysis of this paper. The binary generated data are encoded, with a 1/3- and 1/2-rate turbo encoder with a codeword length of 4096 bits. Binary codewords were ...
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Turbo Detection of Symbol Based Non Binary LDPC Coded Space time Signals using Sphere Packing Modulation
... STBC-SP systems can be further improved by concatenating sphere packing aided mod- ulation with non-binary LDPC codes and performing symbol- based turbo ...based turbo-detected STBC-SP scheme was ...
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Maximum Likelihood Turbo Iterative Channel Estimation for Space Time Coded Systems and Its Application to Radio Transmission in Subway Tunnels
... the Turbo principle has been applied in profu- sion. Turbo ST codes designs can be found in [27, 28, 29] and various Turbo decoding schemes are exposed in [30, ...
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Iterative carrier phase recovery suited to turbo-coded systems
... for turbo trellis-coded modulation (TCM) over fading channels, which can achieve significant coding gain on channels with phase ...the turbo decoding is made robust against phase uncertainty ...
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Turbo multiuser detection with integrated channel estimation for differentially coded CDMA systems.
... estim ate ap is less th an the actual value (i.e. SNR overestimation occurs). By the same reasoning, one concludes th a t the underestimation of SNR using the blind method results in the overestimation of SNR using the ...
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High Speed Turbo TCM Coded Orthogonal Frequency Division Multiplexing Ultra Wideband Systems
... Trellis-coded modulation (TCM), proposed by Unger- boeck [7], is a well-established technique in digital commu- nications for obtaining significant coding gains (3 ∼ 6 dB), while sacrificing neither data ...
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Turbo Detection of Channel Coded Space Time Signals Using Sphere Packing Modulation
... SP systems can be further improved by concate- nating sphere packing aided modulation with channel coding and performing demapping as well as channel decoding ...proposed turbo-detected STBC-SP sch- ...
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Performance evolution of turbo coded MIMO WiMAX system over different channels and different modulation
... The main feature of MIMO systems is space-time processing. Space-Time Codes (STCs) are the codes designed for the use in MIMO system. Space-Time Block Codes signals are coded in both temporal and spatial ...
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PERFORMANCE OF TURBO CODED OFDM IN WIRELESS APP
... popular modulation method in high speed wireless ...wireless systems, enabling reliable transmission to be achieved over noisy ...decade, turbo codes have been widely considered to be the most ...
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Space Time Turbo Trellis Coded Modulation for Wireless Data Communications
... ST turbo TCM schemes to deliver data transmission at the same rates but at much lower sig- nal to noise ratios than the reference uncoded systems with the same spectral ...
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Adaptive Wireless Transceivers: Turbo Coded, Turbo Equalised and Space Time Coded TDMA, CDMA and OFDM Systems
... adaptive modulation in a narrow-band ...the modulation control parameters was proposed by Otsuki et ...required modulation mode used was proposed by Torrance et ...the modulation control ...
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Space Time Turbo Coded Modulation: Design and Applications
... Access Systems in Oulu as a Senior Specialist of WCDMA Research and ...tion systems as well as their application in wireless communication system ...
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Semi-blind Turbo Detection for Multiple-input Multiple-output Wireless Systems
... wireless systems where multipath rep- resents an impediment to accurate transmission, MIMO actually exploits multipath to maximize the data rate over a given transmission ...
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Carrier and Clock Recovery in (Turbo-) Coded Systems: Cramér-Rao Bound and Synchronizer Performance
... the coded symbols, allowing efficient numerical evaluation of the CRB for a wide range of coded systems by means of the BCJR ...1/2 turbo code combined with QPSK ...the coded system are ...
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Nested turbo codes for the costa problem
... ample, turbo TCQ [31] is worse than TCQ, which is currently the most efficient practical scheme for ...(and turbo TCQ in particular) makes it almost impossible to implement nested codes with the same but ...
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Turbo Equalization of Convolutional Coded and Concatenated Space Time Trellis Coded Systems using Radial Basis Function Aided Equalizers
... I I xc TITS : space-time symbol interleaver -1 : space-time symbol deinterleaver =s Figure 4: Receiver of the serially concatenated systematic convolutional coded and systematic STTC sys[r] ...
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