Title :
A serial concatenated scheme for OvCDM
Author :
Yang Chun-ping ; Jian, Wang ; Li Dao-ben
Author_Institution :
Sch. of Electr. & Electron. Eng., North China Electr. Power Univ., Beijing, China
Abstract :
A serial concatenated scheme for Overlapped Code Division Multiplexing (OvCDM) system is proposed, characterized in that one or more OvCDM codes are as component codes in serial concatenated OvCDM to make up such a concatenated code with higher spectrum efficiency. The serial concatenated OvCDM uses iterative decoding algorithm based on LOG-MAP Algorithm with soft input soft ouput (SISO). As the simulation results show, the performance of serial concatenated OvCDM is closer to the Shannon limit than that of un-concatenated OvCDM.
Keywords :
code division multiplexing; concatenated codes; iterative decoding; radio spectrum management; LOG-MAP algorithm; OvCDM code; OvCDM system; Shannon limit; concatenated code; iterative decoding; overlapped code division multiplexing; serial concatenated scheme; soft input soft ouput; spectrum efficiency; Algorithm design and analysis; Bit error rate; Concatenated codes; Decoding; Educational institutions; Iterative decoding; Simulation; LOG-MAP Algorithm; OvCDM; Serial Concatenated Scheme; Shannon Limit;
Conference_Titel :
Mobile Congress (GMC), 2011 Global
Conference_Location :
Shanghai
Print_ISBN :
978-1-4673-0346-0
DOI :
10.1109/GMC.2011.6103933
