Fixed complexity LLL algorithm

H Vetter, V Ponnampalam, M Sandell… - IEEE Transactions on …, 2008 - ieeexplore.ieee.org
… of Table II, where a defined number of Y consecutive fixed complexity structures, resulting in
… This altered algorithm shall therefore be called fixed complexity LLL algorithm (fcLLL). Note …

Reduced and fixed-complexity variants of the LLL algorithm for communications

C Ling, WH Mow… - IEEE Transactions on …, 2013 - ieeexplore.ieee.org
… In this paper, variants of the LLL algorithm with either reduced or fixed complexity are …
Our proposed algorithm in this Section is based on the fixedcomplexity LLL algorithm given …

An enhanced fixed-complexity LLL algorithm for MIMO detection

Q Wen, Q Zhou, X Ma - 2014 IEEE Global Communications …, 2014 - ieeexplore.ieee.org
algorithm. Last, we demonstrate that the proposed fcLLL exhibits better performance than the
LLL … paper, we adopt the complex-valued version for LLL and fcLLL algorithms. The rest of …

Variants of the lll algorithm in digital communications: Complexity analysis and fixed-complexity implementation

C Ling, WH Mow, N Howgrave-Graham - arXiv preprint arXiv:1006.1661, 2010 - arxiv.org
… by roughly 50% [26], a rigorous complexity analysis is yet to be … the complexity of complex
LLL and propose variants of the LLL algorithm with either lower theoretic complexity or a fixed-…

An LLL algorithm with quadratic complexity

PQ Nguyen, D Stehlé - SIAM Journal on Computing, 2009 - SIAM
The Lenstra–Lenstra–Lovász lattice basis reduction algorithm (called LLL or ${\rm L}^3$) is
a fundamental tool in computational number theory and theoretical computer science, which …

Fixed-complexity LLL-based signal detection for MIMO systems

Y Yang, J Kim - IEEE transactions on vehicular technology, 2012 - ieeexplore.ieee.org
… Thus, we compare the complexity of LLL reduction algorithms in terms of the required
number of flops rather than the number of LLL loops in this paper. The worst-case complexity of …

Computationally efficient fixed complexity LLL algorithm for lattice‐reduction‐aided multiple‐input–multiple‐output precoding

W Wang, M Hu, Y Li, H Zhang, Z Li - IET Communications, 2016 - Wiley Online Library
… a fixed complexity LLL (fcLLL) algorithm by adopting fixed column traverse strategy and limited
LLL loop … To describe LLL algorithm, we first give the definition of the LLL-reduced basis. …

The optimal LLL algorithm is still polynomial in fixed dimension

A Akhavi - Theoretical computer science, 2003 - Elsevier
… recall what is the LLL algorithm and we give … complexity of the optimal LLL algorithm in
three-dimensional case. Finally, in Section 5, we prove that in fixed dimension, the LLL algorithm

Fixed-complexity variants of the effective LLL algorithm with greedy convergence for MIMO detection

Q Wen, X Ma - … Conference on Acoustics, Speech and Signal …, 2016 - ieeexplore.ieee.org
… Performance of ELLL Variants with Fixed Complexity Firstly, we consider the fixed-complexity
cases, ie, the maximum number of the ELLL iterations is fixed in each LR algorithm. Fig. 1 …

Worst-case complexity of the optimal LLL algorithm

A Akhavi - LATIN 2000: Theoretical Informatics: 4th Latin …, 2000 - Springer
… the complexity of the LLL algorithm in the case when the approximation parameter of the
algorithm has … Here we prove that, for any fixed dimension n, the number of iterations of the LLL