MIMO System with Relative Phase Difference Time-Shift Modulation for Rician Fading Environment
スポンサーリンク
概要
- 論文の詳細を見る
Multiple-Input Multiple-Output (MIMO) systems that realize high-speed data transmission with multiple antennas at both transmitter and receiver are drawing much attention. In line-of sight (LOS) environments, the performance of MIMO systems depends largely on the difference of the phase difference of direct paths from transmit antennas to each receive antenna. When the phase difference of direct paths are close to each other, the spatial division multiplexing (SDM) channels are not orthogonal to each other so signal detection becomes difficult. In this paper, we propose a MIMO system with relative phase difference time-shift modulation (RPDTM) in Rician fading environments. The proposed scheme transmits independent signals from each antenna at each time slot where the relative phase difference between signal constellations used by transmit antennas varies in a pre-determined pattern. This transmission virtually changes the phase difference of direct paths from transmit antennas to each receive antenna without lowering data rate and without knowledge of the channels. In addition, forward error correction coding (ECC) is applied to exploit the time slots where the receiver can detect the signals easily to improve the detection performance. If there are time slots where the receiver can separate the received signal, the receiver can decode the data by using the time slots and the correlation between data. From the results of computer simulation, we show that MIMO system with RPDTM can achieve the better bit error rate (BER) than the conventional MIMO system. We also show that the MIMO system with RPDTM is effective by about Rician factor K=10dB.
- （社）電子情報通信学会の論文
- 2008-02-01
著者
-
OHTSUKI Tomoaki
Department of Information and Computor Science, Keio University
-
Kobayashi Kenichi
Graduate School of Medical Sciences, Kanazawa University
-
KASHIMA Tsuyoshi
Nokia Research Center
-
Someya Takao
Graduate School Of Electrical Engineering Tokyo University Of Science
-
JAROT Sigit
NOKIA JAPAN, Nokia Research Center
-
Jarot Sigit
Nokia Japan Nokia Research Center
-
Kashima Tsuyoshi
Nokia Japan Co. Ltd.
-
Kashima Tsuyoshi
Nokia Japan Nokia Research Center
-
Kobayashi Kenichi
Graduate School Of Medical Science Kanazawa University
-
Ohtsuki Tomoaki
Department Of Computer And Information Keio University
-
Kobayashi Kenichi
Graduate School Of Electrical Engineering Tokyo University Of Science
関連論文
- Lowering the Error Floors of Irregular LDPC Code on Fast Fading Environment with Perfect and Imperfect CSIs(Wireless Communication Technologies)
- Reliability-Based Hybrid ARQ (RB-HARQ) Schemes Using Low-Density Parity-Check (LDPC) Codes(Fundamental Theories for Communications)
- Lowering Error Floor of Irregular LDPC Codes by CRC and OSD Algorithm(Fundamental Theories for Communications)
- Decoding Algorithms Based on Oscillation for Low-Density Parity Check Codes(Coding Theory)
- Companding System Based on Time Clustering for Reducing Peak Power of OFDM Symbol in Wireless Communications(Multi-dimensional Mobile Information Networks)
- Criterion for Reducing Error Rate Degradation by Nonlinear Amplifier for Multicarrier Transmission(Wireless Communication Technologies)
- Frequency Offset Compensation with MMSE-MUD for Multi-Carrier CDMA in Quasi-Synchronous Uplink(Wireless Communication Technology)
- Interference Mitigation and Capacity Tradeoff in CoMP With Limited Feedback
- Bootstrapped Modified Weighted Bit Flipping Decoding of Low Density Parity Check Codes(Coding Theory)
- Relative sympathetic burst area distribution; A new and quantitative indicator of sympathoexcitation in humans
- Tissue Doppler Analysis of Atrial Electromechanical Coupling in Paroxysmal Atrial Fibrillation
- Convergence Acceleration of Iterative Signal Detection for MIMO System with Belief Propagation
- A Low Complexity Tree-Structure Based User Scheduling Algorithm for Up-Link Multi-User MIMO Systems(Wireless Communication Technologies)
- B-5-28 Integrated User Scheduling Algorithm for Multi-user MIMO Downlink System
- Mapping for Iterative MMSE-SIC with Belief Propagation
- Effects of transcutaneous near-infrared ray irradiation on intimal hyperplasia in a rat balloon injury model
- Multiple Subcarrier Modulation for Infrared Wireless Systems Using Punctured Convolutional Codes and Variable Amplitude Block Codes(Optical Wireless Communications)
- Aging Does Not Influence Sympathetic Neurotransmission Property to Arterial Pressure in Humans
- Impaired Sympathetic Nerve Transmission in Heart Failure : Evaluation Using Akaike's Relative Power Contribution Analysis
- Transcutaneous near-infrared ray irradiation prevents restenosis after transluminal angioplasty in patients with hemodialysis access-shunt occulusion
- Enhanced contribution of NO to exercise-induced coronary responses after α-adrenergic receptor blockade
- Effects of Linear Polarized Near-Infrared Ray Irradiation Near the Left Stellate Ganglion on Electrocardiogram in Drug-induced QT Prolongation
- Reflex Sympathetic Activation Enhances Platelet Functions and Reduces Fibrinolytic Activity in Patients with Coronary Heart Disease
- Optical Spread Time CDMA Communication Systems with PPM Signaling
- A novel energy efficient clustering technique based on virtual hexagon for wireless sensor networks (ユビキタス・センサネットワーク)
- Chip-Level Detection in Optical Frequency Hopping Code Division Multiple Access(Communication Theory and Signals)
- Information and Signal Processing for Sensor Networks(Wide Band Systems)
- Scheduling Algorithm with Power Allocation for Random Unitary Beamforming
- MIMO System with Relative Phase Difference Time-Shift Modulation for Rician Fading Environment
- Indoor Event Detection with Eigenvector Spanning Signal Subspace for Home or Office Security
- Performance Evaluation of SAGE Algorithm for Channel Estimation and Data Detection Using Superimposed Training in MIMO System(Antennas and Propagation)
- Random Beamforming Using Iterative Power Allocation with Small Feedback Information and Low Latency
- MIMO Systems in the Presence of Feedback Delay
- B-8-33 A Low PAPR and BER Tehchnique for Relayed OFDM System
- Controlling Network Topology in Forming Bluetooth Scatternet(Network, Ubiquitous Networks)
- Performance Evaluation of Iterative LDPC-Coded MIMO OFDM System with Time Interleaving
- Analysis of Performance Degradation due to Channel Estimation Error in Pre-Rake TDD/CDMA(Wireless Communication Technologies)
- Load balance routing algorithm based on game theoretic approach in wireless sensor networks (ユビキタス・センサネットワーク)
- Spatial Multiplexing in Optical Wireless MIMO Communications Over Indoor Environment(Optical Wireless Communications)
- Channel Estimation with Selective Superimposed Pilot Sequences under Fast Fading Environments(Antennas and Propagation)
- Game-theoretic approach based routing protocol in wireless sensor networks with obstacles (ユビキタス・センサネットワーク)
- An Indoor Position Estimation Method by Maximum Likelihood Algorithm Using Received Signal Strength
- Performance Analysis of ADSL with Punctured Convolutional Code
- Performance Analysis of Direct-Detection Optical CDMA Systems with Optical Hard-Limiter Using Equal-Weight Orthogonal Signaling
- Computational Complexity and Performance of RAKE Receivers with Channel Estimation for DS-UWB(RAKE Receiver, Ultra Wideband Systems)
- Subcarrier Mapping for Single-User SC-FDMA Relay Communications
- MIMO Receiver with Antenna Subset Selection: Algorithm and Hardware Implementation
- Wireless Interference in MIMO Channels : An Adversity Made An Advantage
- Improved Preparation of Methyl Bis(2,2,2-trifluoroethoxy)-bromophosphonoacetate for the Stereoselective Synthesis of (E)-α-Bromoacrylates