Title
A Novel Architecture of Sphere Decoder for Low Complexity and High Throughput
Abstract
Since finding the nearest point in a lattice for multi-input multi-output (MIMO) channels is NP-hard, simplified algorithms such as a sphere decoder (SD) have been proposed. In this paper, we propose a low area and high throughput sphere decoder based on the well-known one-node-per-cycle architecture and present the implementation result. Three key contributions are a new direct Schnorr-Euchener (SE) enumeration scheme for QAM modulation, an efficient storage manipulation and the calculation interleaving to reduce the critical path. Compared with current state-of-the-art sphere decoder architecture, the proposed sphere decoder can save 48% of hardware complexity and enhance 54% of the maximum operation clock frequency.
Year
DOI
Venue
2008
10.1109/VETECF.2008.96
VTC Fall
Keywords
Field
DocType
qam modulation,np-hard,one-node-per-cycle architecture,multiinput multioutput channel,channel coding,sphere decoder,telecommunication channels,mimo communication,quadrature amplitude modulation,schnorr-euchener enumeration,mimo channel,storage manipulation,critical path,high throughput
Quadrature amplitude modulation,Computer science,MIMO,Communication channel,Electronic engineering,Soft-decision decoder,Critical path method,Throughput,Clock rate,Interleaving
Conference
ISSN
ISBN
Citations 
1090-3038 E-ISBN : 978-1-4244-1722-3
978-1-4244-1722-3
1
PageRank 
References 
Authors
0.38
3
2
Name
Order
Citations
PageRank
Jin Lee110.38
Sin-Chong Park28022.58