Comparison between DS-CDMA and modified Gegenbauer functions for a multi-user communication Ultra Wide Band system

F. Elbahhar (1, 2) , Atika Rivenq (1, 2) , Jean-Michel Rouvaen (1, 2) , Marc Heddebaut (3, 1, 2) , Tariq Boukour (1, 2)

1 IEMN - Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520
2 IEMN-DOAE - Institut d’Électronique, de Microélectronique et de Nanotechnologie - Département Opto-Acousto-Électronique - UMR 8520
3 INRETS/LEOST - Laboratoire Electronique, Ondes et Signaux pour les Transports

An innovative multiuser communication system based on the ultra-waveband (UWB) technique is studied. Two coding techniques are proposed: the first is based on direct-sequence code-division multiple access (DS-CDMA) associated with the UWB system. The second innovative technique uses orthogonal functions called modified Gegenbauer functions. To evaluate the performances of these techniques, bit error rate values are calculated and analysed using computer simulations. It is shown that Gegenbauer functions offer superior performance to the previously proposed DS/CDMA-UWB technique for multiuser communications system.

Mots clés: code division multiple access; error statistics; spread spectrum communication; ultra wideband communication; encoding; multiuser channels

Domaines: Sciences de l'ingénieur [physics]

F. Elbahhar, Atika Rivenq, Jean-Michel Rouvaen, Marc Heddebaut, Tariq Boukour. Comparison between DS-CDMA and modified Gegenbauer functions for a multi-user communication Ultra Wide Band system. IEE Proceedings. Communications, 2005, 152 (6), pp.1021-1028. ⟨10.1049/ip-com:20045236⟩. ⟨hal-00126472⟩