Title :
Performance evaluation of a DS/CDMA cellular system with voice and data services
Author :
Huang, Wei ; Bhargava, Vijay K.
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
Abstract :
This paper deals with the reverse link performance of a slotted direct sequence code division multiple access (DS/CDMA) cellular system with voice and data traffic sharing the same bandwidth. Capacity is studied based on interference analysis. We focus on the mutual interaction between services. The impacts of power level and power control error on the capacity, throughput and delay are analyzed. It is shown that system performance can be improved by selecting appropriate power levels for different services and having a tight power control, especially on voice calls. When the source rate of a data call is twice as high as that of a voice call, two schemes of transmitting data are compared. In scheme 1 and 2, each data packet occupies one and two slots respectively. Under the same capacity condition, better delay performance is achieved by scheme 2
Keywords :
cellular radio; channel capacity; data communication; delays; land mobile radio; power control; radiofrequency interference; spread spectrum communication; voice communication; DS/CDMA cellular system; capacity; data packet; data services; data transmission schemes; delay; interference analysis; performance evaluation; power control error; power level; reverse link performance; slotted direct sequence code division multiple access system; source rate; throughput; voice calls; voice services; Bandwidth; Delay; Direct-sequence code-division multiple access; Electronic mail; Error correction; Interference; Multiaccess communication; Power control; Throughput; Traffic control;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 1996. PIMRC'96., Seventh IEEE International Symposium on
Conference_Location :
Taipei
Print_ISBN :
0-7803-3692-5
DOI :
10.1109/PIMRC.1996.567463
