Paper Info
Title
Dynamically Reconfigurable Soft Output Mimo Detector
Abstract
MIMO systems (with multiple transmit and receive antennas) are becoming increasingly popular, and many next-generation systems such as WiMAX, 3-GPP LTE and IEEE802.11n wireless LANs rely on the increased throughput of MIMO systems with up to four antennas at receiver and transmitter. High throughput implementation of the detection unit for MIMO systems is a significant challenge. This challenge becomes still harder, because the above mentioned standards demand support for multiple modulation and coding schemes. This implies that the MIMO detector must be dynamically reconfigurable. Also, to achieve required Bit Error Rate(BER) or Frame Error Rate (FER) performance, the detector has to provide soft values to advanced Forward Error Correction (FEC) schemes like Turbo Codes. This paper presents an ASIC implementation of a novel MIMO detector architecture that is able to reconfigure on the fly and provides soft values as output. The design is implemented in 45nm predictive technology library[16], and has a parallelism factor of four. The detector has many qualities of a systolic architecture and achieves a continuous throughput of 1Gbps for QPSK, 500Mbps for 16-QAM, and 187.5Mbps for 64-QAM. The total area is estimated to be approximately 70KGates equivalent, and power consumption is estimated to be 114mW.
Year
DOI
Venue
2008
10.1109/ICCD.2008.4751842
2008 IEEE INTERNATIONAL CONFERENCE ON COMPUTER DESIGN
Keywords
Field
DocType
high throughput,forward error correction,mimo,detectors,quadrature amplitude modulation,computer architecture,bit error rate,software radio,decoding,signal detection,turbo code,modulation
Forward error correction,3G MIMO,Multi-user MIMO,Computer science,Turbo code,MIMO,Real-time computing,WiMAX,Electronic engineering,Detector,Bit error rate
Conference
ISSN
Citations 
PageRank 
1063-6404
5
0.48
References 
Authors
12
3
Name
Order
Citations
PageRank
Pankaj Bhagawat1162.20
Rajballav Dash2182.06
Gwan Choi336956.66