Paper Info
Title
Processor based 20Mhz 4×4 Cat-5 LTE MIMO receiver with advanced detectors
Abstract
The Category-5 (Cat-5) UE defined by LTE, as the most demanding category, requires processing 20Mhz bandwidth and 4×4 MIMO transmissions. Very little progress has been reported for its feasibility on programmable processors. In fact, most related work focus on lower categories with much less throughput. Since MIMO signal processing complexity increases non-linearly even with the simplest linear MIMO detectors, 4×4 MIMO transmissions combined with 20Mhz bandwidth is much more challenging when compared to lower UE categories. Our work explores the feasibility of software defined baseband for the most demanding UE category. On a customized SDR baseband processor, we have recently accomplished a software defined downlink inner receiver for Cat-5 LTE UE. The implemented inner receiver includes fully fledged synchronization and data detection functionalities, including coarse CFO estimation/compensation, I/Q imbalance estimation/compensation, OFDMA demodulation, channel estimation, fine SCO/CFO estimation/compensation, MIMO channel processing, MIMO data detection and LLR generation. Both linear MIMO detectors and more advanced MIMO detectors have been studied. To the best of our knowledge, this is the first work experimenting practical Cat-5 LTE receivers on baseband processors.
Year
DOI
Venue
2013
10.1109/ICASSP.2013.6638140
ICASSP
Keywords
Field
DocType
programmable processors,iq imbalance estimation,software defined downlink inner receiver,signal processing,cfo compensation,lte mimo receiver,llr generation,ofdm modulation,software defined baseband,iq imbalance compensation,synchronization,mimo communication,receivers,ofdma demodulation,forward error correction,long term evolution,software radio,advanced detectors,cfo estimation,linear mimo detectors,mimo data detection,channel estimation,synchronisation,mimo channel processing,mimo signal processing complexity,mimo,estimation,spread spectrum communication,detectors
Baseband,Mathematical optimization,3G MIMO,Multi-user MIMO,Computer science,Software-defined radio,MIMO,Real-time computing,Baseband processor,Electronic engineering,Bandwidth (signal processing),Orthogonal frequency-division multiplexing
Conference
ISSN
Citations 
PageRank 
1520-6149
0
0.34
References 
Authors
12
7
Name
Order
Citations
PageRank
Min Li116023.21
Amir Amin2134.48
Rodolfo Torrea Duran340.78
Ubaid Ahmad484.70
Raf Appeltans582.32
Antoine Dejonghe630930.25
Liesbet Perre7335.61