Multimode Flex-Interleaver Core for Baseband Processor Platform

This paper presents a flexible interleaver architecture supporting multiple standards like WLAN, WiMAX, HSPA+, 3GPP-LTE, and DVB. Algorithmic level optimizations like 2D transformation and realization of recursive computation are applied, which appear to be the key to reach to an efficient hardware...

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Main Authors: Rizwan Asghar, Dake Liu
Format: Article
Language:English
Published: Wiley 2010-01-01
Series:Journal of Computer Systems, Networks, and Communications
Online Access:http://dx.doi.org/10.1155/2010/793807
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author Rizwan Asghar
Dake Liu
author_facet Rizwan Asghar
Dake Liu
author_sort Rizwan Asghar
collection DOAJ
description This paper presents a flexible interleaver architecture supporting multiple standards like WLAN, WiMAX, HSPA+, 3GPP-LTE, and DVB. Algorithmic level optimizations like 2D transformation and realization of recursive computation are applied, which appear to be the key to reach to an efficient hardware multiplexing among different interleaver implementations. The presented hardware enables the mapping of vital types of interleavers including multiple block interleavers and convolutional interleaver onto a single architecture. By exploiting the hardware reuse methodology the silicon cost is reduced, and it consumes 0.126 mm2 area in total in 65 nm CMOS process for a fully reconfigurable architecture. It can operate at a frequency of 166 MHz, providing a maximum throughput up to 664 Mbps for a multistream system and 166 Mbps for single stream communication systems, respectively. One of the vital requirements for multimode operation is the fast switching between different standards, which is supported by this hardware with minimal cycle cost overheads. Maximum flexibility and fast switchability among multiple standards during run time makes the proposed architecture a right choice for the radio baseband processing platform.
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spelling doaj-art-67a01f4cc4d9487eaa3cba12d7325ea82025-08-20T02:35:23ZengWileyJournal of Computer Systems, Networks, and Communications1687-73811687-739X2010-01-01201010.1155/2010/793807793807Multimode Flex-Interleaver Core for Baseband Processor PlatformRizwan Asghar0Dake Liu1Department of Electrical Engineering, Linköping University, 581 83 Linköping, SwedenDepartment of Electrical Engineering, Linköping University, 581 83 Linköping, SwedenThis paper presents a flexible interleaver architecture supporting multiple standards like WLAN, WiMAX, HSPA+, 3GPP-LTE, and DVB. Algorithmic level optimizations like 2D transformation and realization of recursive computation are applied, which appear to be the key to reach to an efficient hardware multiplexing among different interleaver implementations. The presented hardware enables the mapping of vital types of interleavers including multiple block interleavers and convolutional interleaver onto a single architecture. By exploiting the hardware reuse methodology the silicon cost is reduced, and it consumes 0.126 mm2 area in total in 65 nm CMOS process for a fully reconfigurable architecture. It can operate at a frequency of 166 MHz, providing a maximum throughput up to 664 Mbps for a multistream system and 166 Mbps for single stream communication systems, respectively. One of the vital requirements for multimode operation is the fast switching between different standards, which is supported by this hardware with minimal cycle cost overheads. Maximum flexibility and fast switchability among multiple standards during run time makes the proposed architecture a right choice for the radio baseband processing platform.http://dx.doi.org/10.1155/2010/793807
spellingShingle Rizwan Asghar
Dake Liu
Multimode Flex-Interleaver Core for Baseband Processor Platform
Journal of Computer Systems, Networks, and Communications
title Multimode Flex-Interleaver Core for Baseband Processor Platform
title_full Multimode Flex-Interleaver Core for Baseband Processor Platform
title_fullStr Multimode Flex-Interleaver Core for Baseband Processor Platform
title_full_unstemmed Multimode Flex-Interleaver Core for Baseband Processor Platform
title_short Multimode Flex-Interleaver Core for Baseband Processor Platform
title_sort multimode flex interleaver core for baseband processor platform
url http://dx.doi.org/10.1155/2010/793807
work_keys_str_mv AT rizwanasghar multimodeflexinterleavercoreforbasebandprocessorplatform
AT dakeliu multimodeflexinterleavercoreforbasebandprocessorplatform