Title :
Performance analysis and simulation of code division multiple access (CDMA) cellular digital networks
Author :
Zhang, Zhensheng ; Liu, Yow-Jong
Author_Institution :
Center for Telecommun. Res., Columbia Univ., New York, NY, USA
Abstract :
The performance of a code division multiple access (CDMA) spreading ALOHA access protocol, which could be applied to cellular digital network and personal communications services, is investigated. Exact analysis for such a system access protocol is extremely difficult. By using a Markov model, it is possible to derive upper and lower bounds of the throughput of the underlying system. Time-driven simulation is performed to investigate the tightness of the bounds. The results indicate that the upper bound is reasonably tight. Numerical results show that, unlike the conventional ALOHA system, the CDMA spreading mini-slotted ALOHA system provides better delay and throughput performance than the CDMA spreading slotted ALOHA system
Keywords :
Markov processes; cellular radio; code division multiple access; delays; digital radio; numerical analysis; personal communication networks; simulation; CDMA spreading mini-slotted ALOHA system; Markov model; cellular digital network; code division multiple access; delay; personal communications services; throughput performance; time-driven simulation; upper and lower bounds; Access protocols; Analytical models; Base stations; Cellular networks; Delay systems; Multiaccess communication; Performance analysis; Radio transmitters; Throughput; Timing;
Conference_Titel :
Vehicular Technology Conference, 1993., 43rd IEEE
Conference_Location :
Secaucus, NJ
Print_ISBN :
0-7803-1267-8
DOI :
10.1109/VETEC.1993.507501
