Title :
Performance evaluation of CPCH with a geometrically-distributed message length in W-CDMA
Author :
Choi, MoonYoung ; Yao, Yu-Dong ; Heffes, Harry
Author_Institution :
Dept. of Electr. & Comput. Eng., Stevens Inst. of Technol., Hoboken, NJ, USA
Abstract :
Common packet channel (CPCH) access is an efficient approach to support packet data transmission in a wideband code division multiple access (W-CDMA) system. This paper presents a discrete-time analysis of the CPCH access scheme. It is assumed that a packet arrival process in Poisson distributed and the service time of each packet is geometrically distributed. The study focuses on examining the number of packet arrivals in each CPCH access slot. Performance is evaluated in terms of normalized throughput and blocking rate. It is observed that CPCH performs better when packet mean service time is larger. The performance results are also compared with previous studies using continuous-time analyses.
Keywords :
3G mobile communication; Poisson distribution; broadband networks; code division multiple access; continuous time systems; data communication; discrete time systems; packet radio networks; telecommunication channels; CPCH; Poisson distribution; W-CDMA system; blocking rate; common packet channel; continuous-time analyses; discrete-time analysis; geometrically-distributed message length; normalized throughput; packet arrival process; packet data transmission; packet mean service time; wideband code division multiple access; Access protocols; Data communication; Data engineering; Electronic mail; Laboratories; Message service; Monitoring; Multiaccess communication; Systems engineering and theory; Wideband;
Conference_Titel :
Vehicular Technology Conference, 2003. VTC 2003-Spring. The 57th IEEE Semiannual
Print_ISBN :
0-7803-7757-5
DOI :
10.1109/VETECS.2003.1207756
