Journal of Computer Systems, Networks, and Communications
Volume 2010 (2010), Article ID 793807, 16 pages
http://dx.doi.org/10.1155/2010/793807
Multimode Flex-Interleaver Core for Baseband Processor Platform
Department of Electrical Engineering, Linköping University, 581 83 Linköping, Sweden
Received 25 August 2009; Accepted 12 October 2009
Academic Editor: Rashid Saeed
Copyright © 2010 Rizwan Asghar and Dake Liu. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
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