Title :
Complete complementary codes applied to UTRA FDD asynchronous uplink
Author :
Detert, Thorben ; Haak, Waldemar ; Martoyo, Ihan
Author_Institution :
Ist. fur Nachrichtentechnik, Technische Univ. Darmstadt, Germany
Abstract :
In this paper, a performance comparison of orthogonal variable spreading factor (OVSF) codes and complete complementary (CC) channelization codes in Rayleigh fading channels is presented in the uplink. The bit error rate (BER) is simulated to provide a means of comparison for different spreading factors (SF) and different numbers of users. The system is totally asynchronous, and a special simulation strategy is applied to make the simulation of long scrambling codes possible. An introduction to the correlation functions utilized in the computation of the multiple access interference (MAI) seen by each user is given. Except the application of CC-codes, the simulation strictly sticks to the UTRA FDD standard.
Keywords :
Rayleigh channels; channel coding; error statistics; frequency division multiplexing; radio access networks; radio links; radiofrequency interference; Rayleigh fading channels; UTRA FDD asynchronous uplink; bit error rate; complete complementary channelization codes; multiple access interference; orthogonal variable spreading factor codes; spreading factors; Bit error rate; Computational modeling; Detectors; Fading; Frequency; Multiaccess communication; Multipath channels; Multiple access interference; Multiuser detection; RAKE receivers;
Conference_Titel :
Electrotechnical Conference, 2004. MELECON 2004. Proceedings of the 12th IEEE Mediterranean
Print_ISBN :
0-7803-8271-4
DOI :
10.1109/MELCON.2004.1346959
