Title :
Eliminating odd correlations in asynchronous DS CDMA employing cyclic prefix
Author :
Dudkov, Alexey ; Ipatov, Valery
Author_Institution :
Dept. of Inf. Technol., Turku Univ.
Abstract :
In an asynchronous DS CDMA system performance of a single-user receiver suffers from the presence of odd cross-correlations of user signatures due to information modulation and variable delays between user signals. To neutralize this effect, employing a cyclic prefix is recommended. Both analytical and simulation results demonstrate that scenarios exist where such a measure brings about a substantial gain in performance with no compromising of spectral efficiency
Keywords :
code division multiple access; correlation methods; modulation; radio receivers; spread spectrum communication; asynchronous DS CDMA; cyclic prefix; information modulation; odd correlations; single-user receiver; spectral efficiency; Analytical models; Computer science; Delay; Gain measurement; Information technology; Multiaccess communication; Multiple access interference; Performance analysis; Performance gain; System performance;
Conference_Titel :
Electrotechnical Conference, 2006. MELECON 2006. IEEE Mediterranean
Conference_Location :
Malaga
Print_ISBN :
1-4244-0087-2
DOI :
10.1109/MELCON.2006.1653181
