Concatenated coding MIMO-OFDM receiver for broadband wireless system

2005 ◽  
Author(s):  
Xiangning Fan ◽  
Yuhua Xing
Keyword(s):  
Wireless System ◽  
Concatenated Coding ◽  
Broadband Wireless ◽  
Mimo Ofdm

scholarly journals Research of Optimization Algorithms used in MIMO-OFDM Systems

2019 ◽  
Vol 8 (6S3) ◽  
pp. 1707-1712
Keyword(s):  
Optimization Algorithms ◽  
Pso Algorithm ◽  
Least Square ◽  
Advanced Technology ◽  
Ofdm Systems ◽  
Matlab Simulation ◽  
Broadband Wireless ◽  
Mimo Ofdm ◽  
Narrowband Channels ◽  
Optimum Solution

Orthogonal Frequency Diνision Multiplexing (OFDM) technology is used to split large amount of data into several parallel narrowband channels with different frequencies orthogonally such that interference is reduced. Multiple Input M𝒖ltiple Output (MIMO) technology uses diversity ƫechnique such that capɑcity of the system and data throughput can be improved. Thereby combining both the technologies as MIMOOFDM achieves great spectral efficiency and it is the most advanced technology in broadband wireless communication. Ƭhe channel estimation techniques like Leaşt Square Estimation (LSE) algorithm is used to estimate the channel and the performancе of MIMO-OFDM system is еvaluated on the basis of Bit Error Ratе (BER) and MеanSquarе Error (MSE) by using MATLAB simulation. Further enhancement can be achieved by applying optimization algorithms, in this paper to find the optimum solution Partic1e Swɑrm Optimization Algorithm (PSO) is uti1ized when the pilots are placed randomly. Simulation outcome show that PSO algorithm outperforms the LSE when random pilots are used for MIMO-OFDM systems.

Single-block differential transmit scheme for broadband wireless MIMO-OFDM systems

2006 ◽  
Vol 54 (9) ◽  
pp. 3305-3314 ◽  
Author(s):  
T. Himsoon ◽  
Weifeng Su ◽  
K.J. Ray Liu
Keyword(s):  
Ofdm Systems ◽  
Broadband Wireless ◽  
Mimo Ofdm ◽  
Single Block

Soft QoS control in the WATMnet broadband wireless system

1999 ◽  
Vol 6 (1) ◽  
pp. 34-43 ◽  
Author(s):  
D. Reininger ◽  
R. Izmailov ◽  
B. Rajagopalan ◽  
M. Ott ◽  
D. Raychaudhuri
Keyword(s):  
Wireless System ◽  
Qos Control ◽  
Broadband Wireless

scholarly journals Optimization for Interference Cancellation in MIMO-OFDM System using Modified Bat Algorithm (MBA)

2019 ◽  
Vol 8 (4) ◽  
pp. 24-31
Keyword(s):  
Interference Cancellation ◽  
Communication Systems ◽  
Orthogonal Frequency Division Multiplexing ◽  
Bat Algorithm ◽  
Ofdm Systems ◽  
Broadband Wireless ◽  
Multiple Input ◽  
Mimo Ofdm ◽  
Signal Channel ◽  
Modified Bat Algorithm

The intervention has to be negated deprived of humiliation of the spectral effectiveness In broadband wireless communication systems. The intrusive overthrow of the parallel OFDM systems are called as MIMO-OFDM (Multiple Input Output Orthogonal Frequency Division Multiplexing) is brought together in our projected effort. The representation of AWGN within the signal channel and improved by the value of MSE minimum factor is chosen. Thus, the optimization is prepared for the operation of the MBA (Modified Bat Algorithm). Our proposed concepts with its results are evaluated in the platform of MATLAB.

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