Turbo Codes Application to DS-CDMA Mobile Radio (Special Section on Spread Spectrum Techniques and Applications)
スポンサーリンク
概要
- 論文の詳細を見る
The binary parallel concatenated codes called turbo codes provide relatively large coding gains with reasonable computation complexity. The application of turbo codes to a coherent DS-CDMA mobile radio link with antenna diversity and coherent RAKE combining is considred. A soft-in/soft-out Viterbi decoder that requires less computation complexity is employed instead of maximum a posteriori probability (MAP) decoder. The effect of turbo codes on the achievable bit error rate (BER) performance in frequency selective multipath fading channels is evaluated by computer simulation. It is demonstrated that turbo codes can achieve better BER performance than convolutional codes having the same code rate for the relatively large interleaver size. How the coding gains are impacted by the interleaver size and constraint length of the turbo codes and by the propagation channel condition (power delay profile, the number of resolvable propagation paths, and the maximum Doppler frequency) is discussed.
- 社団法人電子情報通信学会の論文
- 1998-11-25
著者
-
Adachi Fumiyuki
Wireless Laboratories Ntt Mobile Communications Network Inc.: Presently Electrical And Communication
-
Fujiwara Atsushi
Wireless Laboratories, NTT DoCoMo, Inc.
-
SUDA Hirohito
Wireless Laboratories, NTT Mobile Communications Network Inc.
-
Suda Hirohito
Wireless Laboratories Ntt Docomo Inc.
-
Suda Hirohito
Wireless Laboratories Ntt Mobile Communications Network Inc.
-
Fujiwara Atsushi
Wireless Laboratories Ntt Docomo Inc.
-
Fujiwara Atsushi
Wireless Laboratories Ntt Mobile Communications Network Inc.
-
Adachi Fumiyuki
Wireless Lab. Ntt Docomo Inc.:department Of Electrical Communications At Graduate School Of Engineer
関連論文
- Adaptive Reduced State-Transition Viterbi Differential Detection of M-Ary DPSK Signals Transmitted over Gaussian and Frequency Nonselective Rayleigh Faded Channels
- Path Search Performance and Its Parameter Optimization of Pilot Symbol-Assisted Coherent Rake Receiver for W-CDMA Mobile Radio (Special Section on Spread Spectrum Techniques and Applications)
- Experiments on Fast Cell Search Algorithm Using Scrambling Code Masking for Inter-Cell Asynchronous W-CDMA System (Special Section on Spread Spectrum Techniques and Applications)
- Fast Cell Search Algorithm in Idle Mode for Inter-Cell Asynchronous W-CDMA Mobile Radio (Special Issue on Personal, Indoor and Mobile Radio Communications)
- Experiments on 2-Mbps Data Transmission Applying Antenna Diversity Reception over 5-MHz W-CDMA Mobile Radio Link (Special Issue on Personal, Indoor and Mobile Radio Communications)
- B-5-152 Impact of EDCA Parameters on Throughput Improvement in Layer-2 Mesh Networks with Hidden Terminal Problems
- B-5-151 EDCA Based Congestion Control Method for WLAN Mesh Networks
- Experimental Evaluation of Adaptive Contention Window Control for Layer-2 Mesh Networks
- Performance Evaluation of Mesh Network using Multi Frequency Bands
- Enhancement of Mesh Network Oriented IEEE802.11 MAC Protocol
- Performance Evaluation of Mesh Network using Multi Frequency Bands
- Enhancement of Mesh Network Oriented IEEE802.11 MAC Protocol
- B-5-250 Fairness Improvement by Enhanced IEEE802.11 MAC Protocol in Wireless Mesh Network
- B-5-249 Enhancement of Mesh Network Oriented IEEE802.11 MAC Protocol
- B-5-132 Delayed TXOP Method for VoIP Communications in WLAN Mesh Network
- B-5-171 Distributed Packet Scheduling Method for VoIP over WLAN
- Iterative Power Allocation Scheme for MEMO Systems (Wireless Communication Technologies)
- Performance Enhancement of SC/S-MMSE Turbo Receiver for MIMO-SDM/OFDM Transmission(Wireless Communication Technologies)
- Centralized Channel Allocation Technique to Alleviate Exposed Terminal Problem in CSMA/CA-Based Mesh Networks : Solution Employing Chromatic Graph Approach(Network, Ubiquitous Networks)
- Experimental Evaluations on Array Antenna Configuration of Adaptive Antenna Array Diversity Receiver in W-CDMA Reverse Link (Special Section on Spread Spectrum Techniques and Applications)
- Wireless Past and Future : Evolving Mobil Communications Systems : Special Section on the 10th Anniversary of Trans. Fundamentals : Last Decade and 21st Century
- Evaluation of Reverse-Link Capacity of a DS-CDMA System with Power Control and Diversity Reception
- Capacity Evaluation of a Forward Link DS-CDMA Cellular System with Fast TPC Based on SIR
- Evaluation of the outage probability of the forward link DS-CDMA cellular system with fast TPC based on SIR
- Evaluation of the outage probability of the forward link DS-CDMA cellular system with fast TPC based on SIR
- Evaluation of the outage probability of the forward link DS-CDMA cellular system with fast TPC based on SIR
- Evaluation of the outage probability of the forward link DS-CDMA cellular system with fast TPC based on SIR
- Transmit Power and Window Control to Reduce Inter-User Interference in CDMA Cellular Packet Systems(Special Section on Multi-dimensional Mobile Information Networks)
- Positron Annihilation in Nearly Perfect Crystals of Aluminum during Slow Cooling
- A Fast Transmit Power Control Based on Markov Transition for DS-CDMA Mobile Radio
- Analysis of DS-CDMA Transmission Performance in the Presence of Pure Impulsive Interference over Frequency Selective Fading(Regular Section)
- On Received Signal Power Distribution of Wideband Signals in a Frequency-Selective Rayleigh Fading Channel(Wireless Communication Technology)
- Adaptive Channel Estimation for Cohercent DS-CDMA Mobile Radio Using Time-Multiplexed Pilot and Parallel Pilot Structures
- Capacity Estimation for Overlaid Multiband CDMA Systems with SIR-Based Power Control
- Effect of Transmit Power Limitation in Power Controlled DS-CDMA
- Adaptive Prediction Iterative Channel Estimation for Combined Antenna Diversity and Coherent Rake Reception of Multipath-Faded DSSS Signals(Regular Section)
- Frequency-Domain Adaptive Prediction Iterative Channel Estimation for OFDM Signal Reception(Terrestrial Radio Communications)
- Pilot-Aided Adaptive Prediction Channel Estimation in a Frequency-Nonselective Fading Channel
- Joint Effect of Transmit Power Control and Antenna Diversity on Spectrum Efficiency of a Cellular System(Wireless Communications Issue)
- Pilot-Aided Threshold Detection Combining for OFDM-CDMA Down Link Transmissions in a Frequency Selective Fading Channel(Regular section)
- Comparative Study of Various Frequency Equalization Techniques for Downlink of a Wireless OFDM-CDMA System(Special Issue on Multiple Access and Signal Transmission Techniques for Future Mobile Communications)
- Hybrid Data Transmission Technique for Multimedia Satellite Broadcasting(Special Issue on Outstanding Papers from APCC 2001)
- Turbo Codes Application to DS-CDMA Mobile Radio (Special Section on Spread Spectrum Techniques and Applications)
- Reverse Link Bandwidth Efficiency of a Spectrally Overlapped CDMA System
- Complexity Reduction of Turbo Decoding
- An Embedded Interleaver for Turbo Codes Based on Prime-Field
- Joint Antenna Diversity and Frequency-Domain Equalization for Multi-Rate MC-CDMA(Terrestrial Radio Communications)
- Modeling of DS-CDMA Transmit Power Control in a Fast Fading Channel with Antenna Diversity
- Pilot-Assisted Channel Estimation Using Adaptive Interpolation for Coherent Rake Reception of DS-CDMA Signals(Wireless Communication Technologies)
- Reverse Link Capacity of Orthogonal Multi-Code DS-CDMA with Multiple Connections(Regular Section)
- Time- and Frequency-Domain Expressions for Rake Combiner Output SNR
- Challenges of Wireless Communications(Special Section on Multi-dimensional Mobile Information Networks) : IMT-2000 and Beyond