Low-latency implementation of CORDIC-based sorted QR decomposition for high-speed MIMO-OFDM system

2018 ◽  
Author(s):  
Hyukyeon Lee ◽  
Hanjun Kim ◽  
Minjung Cho ◽  
Jaeseok Kim
Keyword(s):  
High Speed ◽  
Qr Decomposition ◽  
Low Latency ◽  
Ofdm System ◽  
Mimo Ofdm

scholarly journals Interpolation-Based QR Decomposition and Channel Estimation Processor for MIMO-OFDM System

2011 ◽  
Vol 58 (5) ◽  
pp. 1129-1141 ◽  
Author(s):  
Po-Lin Chiu ◽  
Lin-Zheng Huang ◽  
Li-Wei Chai ◽  
Yuan-Hao Huang
Keyword(s):  
Channel Estimation ◽  
Qr Decomposition ◽  
Ofdm System ◽  
Mimo Ofdm

An Improved Algorithm Based on Optimized PTS in MIMO-OFDM System

2013 ◽  
Vol 765-767 ◽  
pp. 2801-2804
Author(s):  
Ya Jing Wang ◽  
Ya Zhen Li ◽  
Li Qun Huang
Keyword(s):  
Spectral Efficiency ◽  
Communication System ◽  
High Speed ◽  
Fourth Generation ◽  
Ofdm System ◽  
Broadband Wireless ◽  
High Spectral Efficiency ◽  
Mimo Ofdm ◽  
Simulation Results ◽  
Improved Algorithm

The fourth generation mobile communication system is a high-speed broadband wireless communication system, it needs MIMO and OFDM technology which have high spectral efficiency and suitable for a multi-path fading channel. Because the MIMO-OFDM system is still an multi-carrier modulation system, the main drawback is the high PAPR value. This paper proposed an improved algorithm based on optimized PTS to reduce PAPR in STBC MIMO-OFDM system. The simulation results show that the improved algorithm can effectively reduce the PAPR value and do not increase the amount of computation in STBC MIMO-OFDM system.

A Distributed Systolic Array Processing Algorithm for QR-decomposition in MIMO-OFDM System

2013 ◽  
Vol 34 (8) ◽  
pp. 1968-1973
Author(s):  
Yong-xu Zhu ◽  
Bin Wu ◽  
Yu-mei Zhou ◽  
Jing-jing Cai ◽  
Kai-feng Xia
Keyword(s):  
Systolic Array ◽  
Array Processing ◽  
Qr Decomposition ◽  
Processing Algorithm ◽  
Ofdm System ◽  
Mimo Ofdm

scholarly journals Indoor optical wireless MIMO-OFDM system

2014 ◽  
Vol 17 (1) ◽  
pp. 5-16
Author(s):  
Khoa Le Dang ◽  
Tung Thanh Vu ◽  
Tu Thanh Nguyen ◽  
Phuong Huu Nguyen
Keyword(s):  
Fading Channels ◽  
Electromagnetic Interference ◽  
Orthogonal Frequency Division Multiplexing ◽  
High Speed ◽  
Optical Wireless ◽  
Error Vector Magnitude ◽  
Ofdm System ◽  
High Data ◽  
Mimo Ofdm ◽  
Vector Magnitude

Indoor optical wireless systems have attracted attention, because they allow high-speed transmission without electromagnetic interference. Multi Input Multi Output (MIMO) techniques are very promising in providing high data rate or providing performance over fading channels. Orthogonal frequency division multiplexing (OFDM) can send multiple high speed signals by using orthogonal carrier frequencies. In this paper, we propose an optical wireless MIMO-OFDM system to achieve better performance. The signal of each optical transmit antenna is detected by using zero forcing (ZF) algorithm. We use the error vector magnitude (EVM) to predict BER performance. The analysis of bit error rate (BER) shows that the proposed system achieve better performance transmission than OMIMO system when transmitting the signal over reflection channels.

Transmission Performance of Space Time Block Coding with Grouped Phase Rotation for Asymmetric MIMO-OFDM System

2011 ◽  
Vol E94-B (12) ◽  
pp. 3540-3549
Author(s):  
Akinori NAKAJIMA ◽  
Kenichiro TANAKA ◽  
Akinori OHASHI ◽  
Hiroshi HATTORI ◽  
Akihiro OKAZAKI ◽  
...  
Keyword(s):  
Space Time ◽  
Ofdm System ◽  
Time Block ◽  
Transmission Performance ◽  
Block Coding ◽  
Phase Rotation ◽  
Space Time Block Coding ◽  
Mimo Ofdm
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