scholarly journals Reduced complexity optimum detector for Block Data Transmission Systems

2009 ◽  
Vol 6 (23) ◽  
pp. 1649-1655 ◽  
Author(s):  
SPK. Babu ◽  
M. F. M. Salleh ◽  
Farid Ghani
Keyword(s):  
Data Transmission ◽  
Transmission Systems ◽  
Block Data ◽  
Reduced Complexity

Reduced Complexity Optimum Detector for Block Data Transmission System Using An Lattice Sphere Detection Technique

2015 ◽  
Vol 793 ◽  
pp. 523-529
Author(s):  
Mahmoud A.M. Albreem ◽  
Azuwa binti Ali
Keyword(s):  
Data Transmission ◽  
Communication Systems ◽  
High Speed ◽  
Lattice Structure ◽  
The Other ◽  
Gram Matrix ◽  
Generator Matrix ◽  
Transmission Systems ◽  
Sphere Detection ◽  
Block Data

Block Data Transmission Systems (BDTS) are used in high speed wireless communication systems with time dispersive channel characteristics. Since Maximum Likelihood Block Detection (MLBD) requires huge amount of computation, Sphere Detection (SD) technique has been introduced as an alternative. This paper proposes an An Lattice Sphere Detection (AnLSD) technique for detection in block data transmission systems (BDTS). The An lattice structure offers more dense constellation points than the customary Zn lattice in SD technique. Thus, the proposed AnLSD uses An lattice generator matrix as the channel matrix, and uses the Gram matrix which is obtained from the generator matrix as part of the detection process. Simulation results show that the proposed AnLSD performs very close to the Exhaustive search (ES) using block size of 20 bits. It is also performing better than the other renowned methods tested under a channel with spectral nulls. The proposed AnLSD technique offers significant reduction in term of objective functions evaluation as compared to the other renowned methods.

Radius selection for lattice sphere decoder-based block data transmission systems

2015 ◽  
Vol 22 (2) ◽  
pp. 655-662 ◽  
Author(s):  
Mahmoud A. M. Albreem ◽  
Mohd Fadzli Mohd Salleh
Keyword(s):  
Data Transmission ◽  
Transmission Systems ◽  
Sphere Decoder ◽  
Block Data ◽  
Selection For

Regularized Lattice Sphere Decoding for Block Data Transmission Systems

2015 ◽  
Vol 82 (3) ◽  
pp. 1833-1850 ◽  
Author(s):  
Mahmoud A. M. Albreem ◽  
Mohd Fadzli Mohd Salleh
Keyword(s):  
Data Transmission ◽  
Sphere Decoding ◽  
Transmission Systems ◽  
Block Data
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