Title :
Error performance of the 13-channel DS CDMA WATM LAN
Author :
Wysocki, Beata J. ; Wysocki, Tadeusz A. ; Zepernick, Hans J.
Author_Institution :
Cooperative Res. Centre, Curtin Univ. of Technol., Perth, WA, Australia
Abstract :
We present simulation results for the 13-channel DS CDMA WATM LAN utilising optimized complex spreading signatures based on Walsh-Rademacher functions. The method to obtain those optimized spreading signatures, as well as the full set of the coefficients giving the minimum level of cross-correlation between any pair of the channels is shown. The resultant system BER and the distribution of errors within encapsulated WATM cells is given. The obtained results indicate that with the application of a hybrid ARQ scheme, capable of correcting 10 errors, the number of WATM cells which would require retransmission is of the order of 1-2%
Keywords :
Walsh functions; asynchronous transfer mode; automatic repeat request; binary sequences; code division multiple access; correlation methods; error correction codes; error statistics; multiuser channels; optimisation; packet radio networks; spread spectrum communication; wireless LAN; 13-channel DS CDMA WATM LAN; Walsh-Rademacher functions; binary codes; coefficients; encapsulated WATM cells; error correction; error distribution; error performance; hybrid ARQ scheme; minimum cross-correlation; optimized complex spreading signatures; simulation results; system BER; Asynchronous transfer mode; Broadband communication; Design methodology; Digital signal processing chips; Frequency; Local area networks; Multiaccess communication; Multiple access interference; Phase distortion; Wireless LAN;
Conference_Titel :
Universal Personal Communications, 1998. ICUPC '98. IEEE 1998 International Conference on
Conference_Location :
Florence
Print_ISBN :
0-7803-5106-1
DOI :
10.1109/ICUPC.1998.733703
