DocumentCode
2519084
Title
Precoding for improved performance of Welch-bound signature sets
Author
Lehtonen, Eero ; Paavola, Jarkko ; Dudkov, Alexey ; Hurnanen, Tero
Author_Institution
Dept. of Inf. Technol., Univ. of Turku, Turku, Finland
fYear
2010
fDate
26-28 April 2010
Firstpage
1332
Lastpage
1334
Abstract
Welch-bound signature sets are optimal for oversaturated synchronous CDMA in terms of minimizing the multiple access interference. In this paper, precoding of the sum signal of Welch-bound signatures, in order to maximize the mean signal-to-interference ratio for conventional receivers, is analysed. The gain compared to normal sum signal is calculated, and also the effect on the energy of the sum signal is derived.
Keywords
code division multiple access; precoding; radio receivers; radiofrequency interference; Welch-bound signature set; multiple access interference; normal sum signal; oversaturated synchronous CDMA; precoding; receiver; signal-to-interference ratio; Baseband; Code division multiplexing; Direct-sequence code-division multiple access; Downlink; Information technology; Matched filters; Multiaccess communication; Multiple access interference; Signal analysis; Transmitters;
fLanguage
English
Publisher
ieee
Conference_Titel
MELECON 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference
Conference_Location
Valletta
Print_ISBN
978-1-4244-5793-9
Type
conf
DOI
10.1109/MELCON.2010.5475978
Filename
5475978
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