Title :
Efficient connection admission control based-code searching algorithm in 3G/mesh networks
Author :
El-atty, Saied M Abd ; Lizos, Konstantinos
Author_Institution :
Comput. Sci. & Inf. Dept., Al kharj Univ., Wadi Addawasir, Saudi Arabia
Abstract :
Code allocation procedure in 3G mobile networks is provided by utilizing the OVSF channelization codes. In OVSF system, blocking of an incoming call (new or handover) can be characterized either as capacity blocking or as code blocking. Therefore, we propose an efficient CAC policy based on guard code scheme to reduce the failure rate of the handover (HO) calls due to code capacity shortage and at the same time CAC policy utilizes two code searching strategies (single code search (SCS) and multiple code search (MCS)) to mitigate the blocking due to code blocking. The adopted analysis of the proposed CAC is based on Markov chain model. The performance evaluation at code-level is measured in terms of code utilization, handover call failure rate and new call blocking probability.
Keywords :
3G mobile communication; Markov processes; telecommunication congestion control; 3G mobile network; CAC policy; Markov chain model; OVSF channelization code; call blocking probability; call failure rate; code allocation procedure; code blocking; connection admission control; mesh network; multiple code search; Equations; Markov processes; Mathematical model; Mesh networks; Multiaccess communication; Spread spectrum communication; Steady-state; 3G/Mesh Networks; CAC; Code Searching; Handover;
Conference_Titel :
GCC Conference and Exhibition (GCC), 2011 IEEE
Conference_Location :
Dubai
Print_ISBN :
978-1-61284-118-2
DOI :
10.1109/IEEEGCC.2011.5752624
