Selective soft handover calls drop for OVSF based CDMA networks

Author

Balyan, Vipin ; Saini, Davinder S. ; Dhawan, Perminder ; Nama, Dharmesh K. ; Agarwal, Abhishek

Author_Institution

Dept. Of Electron. & Commun. Eng, Jaypee Inst. of Inf. Technol., Noida, India

fYear

2013

fDate

12-14 Dec. 2013

Firstpage

176

Lastpage

180

Abstract

The base stations (BSs) are placed closed to each other in urban areas due to heavy data requirement of mobile networks which leads to frequent soft handover of calls due to movement of mobile stations (MSs) which leads to blocking of calls in different base stations (BSs) at same time due to orthogonal nature of orthogonal variable spreading factor (OVSF) codes in WCDMA networks. In this paper, a scheme is proposed which gives preference to a new call over soft handover calls. Soft handover call(s) are dropped to handle a new call(s). The motion of mobile stations (MSs) maybe random in a cell which leads to increase and decrease of received power at MS from BS. The received power of MSs is compared to select the soft handover call to be dropped. Simulations and results shows improvement in terms of code blocking probability.

Keywords

code division multiple access; codes; mobility management (mobile radio); probability; CDMA networks; OVSF codes; base stations; call blocking; calls dropping; code blocking probability; code division multiple access; mobile networks; mobile stations; orthogonal variable spreading factor; selective soft handover; Base stations; Handover; Mobile communication; Multiaccess communication; Spread spectrum communication; Telecommunication traffic; CDMA; OVSF codes; call drop; code blocking probability; power control; soft handover;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing and Communication (ICSC), 2013 International Conference on

Conference_Location

Noida

Print_ISBN

978-1-4799-1605-4

Type

conf

DOI

10.1109/ICSPCom.2013.6719778

Filename

6719778