Show simple item record

dc.contributor.authorSun, Yang
Cavallaro, Joseph R. 2012-06-01T15:45:34Z 2012-06-01T15:45:34Z 2011-09-01
dc.identifier.citation Y. Sun and J. R. Cavallaro, "Efficient hardware implementation of a highly-parallel 3GPP LTE/LTE-advance turbo decoder," Integration, the VLSI Journal, vol. 44, no. 4, 2011.
dc.description.abstract We present an efficient VLSI architecture for 3GPP LTE/LTE-Advance Turbo decoder by utilizing the algebraic-geometric properties of the quadratic permutation polynomial (QPP) interleaver. The high throughput 3GPP LTE/LTE-Advance Turbo codes require a highly-parallel decoder architecture. Turbo interleaver is known to be the main obstacle to the decoder parallelism due to the collisions it introduces in accesses to memory. The QPP interleaver solves the memory contention issues when several MAP decoders are used in parallel to improve Turbo decoding throughput. In this paper, we propose a low-complexity QPP interleaving address generator and a multi-bank memory architecture to enable parallel Turbo decoding. Design trade-offs in terms of area and throughput efficiency are placed an routed in a 65-nm CMOS technology with a core area of 8.3mm2 and a maximum clock frequency of 400 MHz. This parallel decoder, comprising 64 MAP decoder cores, can achieve a maximum decoding throughput of 1.28 Gbps at 6 iterations.
dc.description.sponsorship Nokia
dc.description.sponsorship Nokia Siemens Networks (NSN)
dc.description.sponsorship Xilinx
dc.description.sponsorship National Science Foundation
dc.language.iso eng
dc.publisher Elsevier
dc.subjectQPP interleaver
Quadratic permutation polynomial
Turbo decoder
MAP decoder
dc.title Efficient hardware implementation of a highly-parallel 3GPP LTE/LTE-advance turbo decoder
dc.type Journal article
dc.citation.journalTitle Integration, the VLSI Journal Center for Multimedia Communication
dc.citation.volumeNumber 44
dc.citation.issueNumber 4
dc.type.dcmi Text
dc.type.dcmi Text
dc.citation.firstpage 305
dc.citation.lastpage 315

Files in this item


This item appears in the following Collection(s)

  • ECE Publications [1397]
    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

Show simple item record