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dc.contributor.authorRadosavljevic, Predrag
Guo, Yuanbin
Cavallaro, Joseph R. 2012-06-04T16:40:38Z 2012-06-04T16:40:38Z 2009-10-01
dc.identifier.citation P. Radosavljevic, Y. Guo and J. R. Cavallaro, "Probabilistically Bounded Soft Sphere Detection for MIMO-OFDM Receivers: Algorithm and System Architecture," IEEE Journal on Selected Areas in Communication, vol. 27, no. 8, 2009.
dc.description.abstract Iterative soft detection and channel decoding for MIMO OFDM downlink receivers is studied in this work. Proposed inner soft sphere detection employs a variable upper bound for number of candidates per transmit antenna and utilizes the breath-first candidate-search algorithm. Upper bounds are based on probability distribution of the number of candidates found inside the spherical region formed around the received symbol-vector. Detection accuracy of unbounded breadth-first candidate search is preserved while significant reduction of the search latency and area cost is achieved. This probabilistically bounded candidate-search algorithm improves error-rate performance of non-probabilistically bounded soft sphere detection algorithms, while providing smaller detection latency with same hardware resources. Prototype architecture of soft sphere detector is synthesized on Xilinx FPGA and for an ASIC design. Using area-cost of a single soft sphere detector, a level of processing parallelism required to achieve targeted high data rates for future wireless systems (for example, 1 Gbps data rate) is determined.
dc.description.sponsorship Nokia
dc.description.sponsorship National Science Foundation
dc.language.iso eng
dc.publisher IEEE
dc.subjectSphere detection
Iterative detection-decoding
Hardware implementation
FPGA prototype
ASIC synthesis
Gbps data throughput
dc.title Probabilistically Bounded Soft Sphere Detection for MIMO-OFDM Receivers: Algorithm and System Architecture
dc.type Journal article
dc.citation.journalTitle IEEE Journal on Selected Areas in Communication Center for Multimedia Communication
dc.citation.volumeNumber 27
dc.citation.issueNumber 8
dc.type.dcmi Text
dc.type.dcmi Text
dc.citation.firstpage 1318
dc.citation.lastpage 1330

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  • ECE Publications [1445]
    Publications by Rice University Electrical and Computer Engineering faculty and graduate students
  • Rice Wireless [268]
    Publications by Rice Faculty and graduate students in the Rice Wireless group

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