Title :
Optimisation of the quality of service in a fast frequency hopped code division multiple access communication system by dynamic allocation of modulation parameters
Author :
Reisenfeld, Sam ; Herlihy, Denis G.
Author_Institution :
Univ. of Technol., Sydney, NSW, Australia
Abstract :
This paper examines quality of service (QoS) issues in fast frequency hopping (FFH) CDMA environments employing orthogonal MFSK signaling. The main quality of service parameters examined are bit error rate (BER) and bandwidth. In particular we examine how the BER can be minimised by appropriate allocation and reallocation of modulation and hopping parameters without affecting the bandwidth of variable bit rate and constant bit rate users. Available bit rate users are also considered and methods of maintaining the QoS for higher priority VBR and CBR sources by dynamically controlling the bandwidth occupied by ABR sources are investigated
Keywords :
code division multiple access; data communication; error statistics; frequency hop communication; frequency shift keying; optimisation; quality of service; radio networks; telecommunication signalling; voice communication; ABR sources; BER; CBR sources; FFH CDMA communication system; QoS optimisation; QoS parameters; VBR sources; available bit rate; bandwidth; bit error rate; constant bit rate; data communication; dynamic allocation; fast frequency hopped code division multiple access; hopping parameters; modulation parameters; orthogonal MFSK signaling; quality of service; variable bit rate; voice communication; wireless channels; wireless communications; Bandwidth; Bit error rate; Bit rate; Communication system control; Frequency conversion; Multiaccess communication; Quality of service; Spread spectrum communication; Telecommunication traffic; Wireless communication;
Conference_Titel :
Global Telecommunications Conference, 1998. GLOBECOM 1998. The Bridge to Global Integration. IEEE
Conference_Location :
Sydney,NSW
Print_ISBN :
0-7803-4984-9
DOI :
10.1109/GLOCOM.1998.776917
