Title :
A great capacity CDMA system based on TCH sequences
Author :
Antunes, Luis Carvalho ; Cercas, Francisco
Author_Institution :
Dept. de Eng. Electrotecnica e de Computadores, IST-Torre Norte, Lisboa, Portugal
Abstract :
We adopt Tomlinson, Cercas and Hughes (TCH) sequences, developed by Cercas (see PhD Thesis, Technical University of Lisbon, Instituto Superior Tecnico, 1996), as the spreading code, because they have simultaneously good autocorrelation and crosscorrelation properties and lead to a very easy-to-implement receiver structure. The TCH spreading sequences can support about 8 times more users than Kasami sequences for the same BER and still provide a power gain greater than 3 dB
Keywords :
cellular radio; channel capacity; code division multiple access; codes; correlation methods; digital radio; land mobile radio; sequences; spread spectrum communication; BER; DS-CDMA; Kasami sequences; TCH spreading sequences; Tomlinson Cercas Hughes sequences; autocorrelation; crosscorrelation; high system capacity; power gain; receiver structure; spreading code; Additive noise; Autocorrelation; Bit error rate; Gold; Multiaccess communication; Multiple access interference; Shift registers; Telecommunication computing;
Conference_Titel :
Personal Wireless Communications, 1997 IEEE International Conference on
Conference_Location :
Mumbai
Print_ISBN :
0-7803-4298-4
DOI :
10.1109/ICPWC.1997.655565
