Analysis of Parallel Sorting Algorithms in K-best Sphere-Decoder Architectures for MIMO Systems
This article presents a complexity and delay analysis of Parallel Sorting Algorithms (PSA) in K-best Sphere-Decoder (K-best SD) receivers in slow-flat Rayleigh fading channels for MIMO (Multiple-Input Multiple-Output) systems. The K-best SD algorithm is a strategic Near-Optimal Spatial-Multiplexing...
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Published in | 2011 International Conference on Reconfigurable Computing and FPGAs pp. 321 - 326 |
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Main Authors | , , |
Format | Conference Proceeding |
Language | English |
Published |
IEEE
01.11.2011
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Subjects | |
Online Access | Get full text |
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Summary: | This article presents a complexity and delay analysis of Parallel Sorting Algorithms (PSA) in K-best Sphere-Decoder (K-best SD) receivers in slow-flat Rayleigh fading channels for MIMO (Multiple-Input Multiple-Output) systems. The K-best SD algorithm is a strategic Near-Optimal Spatial-Multiplexing MIMO (SM-MIMO) demodulation solution (due to its trade-off between Bit-Error-Rate performance and algorithmic complexity) that requires sorting procedures for symbol-decoding purposes. Unfortunately, sorting represents a critical data throughput bottleneck for K-best SD architectures. PSA alleviate this situation by providing suitable implementations of sorting algorithms easily adapted to K-best SD architectures. Several versions of the Bubble-Sort (BS) and the Batcher-Sort (BtchS) algorithms are considered for this analysis. |
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ISBN: | 9781457717345 1457717344 |
ISSN: | 2325-6532 2640-0472 |
DOI: | 10.1109/ReConFig.2011.13 |