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- Title
Radius selection for lattice sphere decoder-based block data transmission systems.
- Authors
Albreem, Mahmoud; Salleh, Mohd
- Abstract
Lattice sphere decoder (LSD) searches lattice points in space within a certain radius ( d), where the closest point obtained is considered the solution. It is well known in LSD, when the initial radius ( d) increases, the complexity increase. Therefore, this paper aims to obtain an initial radius ( d) exact expression to reduce the system complexity with reasonable performance. The derived expression shows that initial radius ( d) depends on lattice dimension n, signal-to-noise ratio ( $$\gamma$$ ), and noise variance $$\sigma^{2}$$ . Hence, this paper proposed a new LSD for BDTS based on this initial radius technique. The proposed LSD achieves a good balance between complexity and performance. Other analytical expressions for complexity and performance in relation with ( d) are also derived. It has been observed that the convergence between the analytical system performance and complexity with their respective simulation results.
- Subjects
DATA transmission systems; DATA analysis; DECODERS (Electronics); DECODERS &; decoding; CODING theory
- Publication
Wireless Networks (10220038), 2016, Vol 22, Issue 2, p655
- ISSN
1022-0038
- Publication type
Article
- DOI
10.1007/s11276-015-0993-1