Title :
A new handoff scheme for decreasing both dropped calls and blocked calls in CDMA system
Author :
Ma, Xiaomin ; Liu, Yun ; Trivedi, Kishor S. ; Ma, Yue ; Han, James J.
Author_Institution :
Dept. of ECE, Duke Univ., Durham, NC, USA
Abstract :
Soft handoff in the CDMA cellular system is analyzed. To improve performance degradation due to channel resource shortage during soft handoff, we propose a new scheme which converts channels occupied by some pseudo-handoff calls to new handoff calls. Stochastic reward net (SRN) models for our scheme are constructed and solved by SPNP (Stochastic Petri Net Package). The numerical results show that our scheme can decrease both the dropped handoff calls and the blocked new calls.
Keywords :
Petri nets; cellular radio; channel allocation; code division multiple access; stochastic processes; telecommunication congestion control; telecommunication signalling; telecommunication traffic; CDMA; SPNP; SRN models; Stochastic Petri Net Package; blocked calls; cellular system; channel resource shortage; dropped calls; performance degradation; pseudo-handoff calls; soft handoff; stochastic reward net models; Base stations; Capacity planning; Degradation; Downlink; Interference; Multiaccess communication; Packaging; Radio frequency; Signal processing; Stochastic processes;
Conference_Titel :
EUROCON'2001, Trends in Communications, International Conference on.
Conference_Location :
Bratislava, Slovakia
Print_ISBN :
0-7803-6490-2
DOI :
10.1109/EURCON.2001.937777
