Performance analysis of soft handoff in CDMA cellular networks

Author

Su, Szu Lin ; Chen, Jen Yeu ; Huang, Jane Hwa

Author_Institution

Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan

Volume

14

Issue

9

fYear

1996

fDate

12/1/1996 12:00:00 AM

Firstpage

1762

Lastpage

1769

Abstract

The code-division multiple-access (CDMA) scheme has been considered as one possible choice of the future standards for cellular networks because of its various advantages. Since there can be only one carrier frequency being used in CDMA systems, a handoff scheme with diversity, a so-called “soft handoff”, was proposed for higher communication quality and capacity. A mathematical model is developed to analyze the soft handoff process. Markov´s concept is applied to describe the system´s steady state statistical behavior. System performance such as blocking probability, handoff refused probability, and channel efficiency are also determined. It is concluded that the larger the area the soft handoff region is, the better users in the cellular network will feel

Keywords

Markov processes; channel capacity; code division multiple access; diversity reception; land mobile radio; probability; radio networks; statistical analysis; CDMA cellular networks; Markov concept; blocking probability; carrier frequency; channel efficiency; code division multiple access; communication capacity; communication quality; diversity; handoff refused probability; mathematical model; performance analysis; soft handoff; standards; statistical behavior; steady state; system performance; Base stations; Frequency diversity; Hysteresis; Intelligent networks; Interference; Land mobile radio cellular systems; Mobile communication; Multiaccess communication; Performance analysis; Probability;

fLanguage

English

Journal_Title

Selected Areas in Communications, IEEE Journal on

Publisher

ieee

ISSN

0733-8716

Type

jour

DOI

10.1109/49.545699

Filename

545699