Title :
Simplified max-log-MAP decoder structure
Author :
Salmela, Perttu ; Järvinen, Tuomas ; Takala, Jarmo
Author_Institution :
Tampere Univ. of Technol.
Abstract :
Area efficient turbo decoder structures are needed in 3G receivers. Typically, max-log-MAP decoders are used as component decoders. In this paper, it is shown that all the computations of the max-log-MAP algorithm can be carried out with slightly modified add compare select (ACS) units. All the required computations of the max-log-MAP algorithm are analyzed and they are mapped to the proposed ACS units (ACSU). A set of four ACSUs is multiplexed to carry out the computations. With the presented method, the structure of the max-log-MAP decoder is simplified and the computing resources are shared economically
Keywords :
3G mobile communication; maximum likelihood decoding; radio receivers; turbo codes; 3G receivers; add compare select units; area efficient turbo decoder structures; component decoders; max-log-MAP decoder structure; Algorithm design and analysis; Code standards; Computer architecture; Decoding; Digital signal processing; Hardware; Signal processing algorithms; Telecommunication computing; Telecommunication standards; Turbo codes;
Conference_Titel :
Mobile Future, 2006 and the Symposium on Trends in Communications. SympoTIC '06. Joint IST Workshop on
Conference_Location :
Bratislava
Print_ISBN :
1-4244-0368-5
DOI :
10.1109/TIC.2006.1708009
