IEICE TRANSACTIONS on Communications
The Effects of Varying Soft Handoff Thresholds in Cellular CDMA System
Summary :
In order to benefit from the advantages of soft handoff (SHO), it is important that the SHO parameters (the SHO thresholds; T_ADD and T_DROP are well assigned. T_ADD is the threshold used for triggering a pilot with high strength to be added to the Active Set (AS) list. The AS means the pilots associated with the forward traffic channels assigned to mobile station. In contrast, T_DROP is the threshold used for triggering a pilot with low strength to be dropped from the AS list. This paper analyzes the effects of varying SHO thresholds in a cellular code division multiple access (CDMA) system on the blocking probability based on traffic load and geometrical distances in hexagonal layout of base stations (BSs). In addition, the previously proposed traffic load equation is applied to the proposed SHO model for balancing the numbers of new and handoff calls on the forward link capacity in case of uniform traffic load. The results show that the blocking probability is more sensitive to T_DROP than to T_ADD variations.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E87-B No.4 pp.807-815
- Publication Date
- 2004/04/01
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- PAPER
- Category
- Fundamental Theories
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Bongkarn HOMNAN, Watit BENJAPOLAKUL, Katsutoshi TSUKAMOTO, Shozo KOMAKI, "The Effects of Varying Soft Handoff Thresholds in Cellular CDMA System" in IEICE TRANSACTIONS on Communications,
vol. E87-B, no. 4, pp. 807-815, April 2004, doi: .
Abstract: In order to benefit from the advantages of soft handoff (SHO), it is important that the SHO parameters (the SHO thresholds; T_ADD and T_DROP are well assigned. T_ADD is the threshold used for triggering a pilot with high strength to be added to the Active Set (AS) list. The AS means the pilots associated with the forward traffic channels assigned to mobile station. In contrast, T_DROP is the threshold used for triggering a pilot with low strength to be dropped from the AS list. This paper analyzes the effects of varying SHO thresholds in a cellular code division multiple access (CDMA) system on the blocking probability based on traffic load and geometrical distances in hexagonal layout of base stations (BSs). In addition, the previously proposed traffic load equation is applied to the proposed SHO model for balancing the numbers of new and handoff calls on the forward link capacity in case of uniform traffic load. The results show that the blocking probability is more sensitive to T_DROP than to T_ADD variations.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e87-b_4_807/_p
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@ARTICLE{e87-b_4_807,
author={Bongkarn HOMNAN, Watit BENJAPOLAKUL, Katsutoshi TSUKAMOTO, Shozo KOMAKI, },
journal={IEICE TRANSACTIONS on Communications},
title={The Effects of Varying Soft Handoff Thresholds in Cellular CDMA System},
year={2004},
volume={E87-B},
number={4},
pages={807-815},
abstract={In order to benefit from the advantages of soft handoff (SHO), it is important that the SHO parameters (the SHO thresholds; T_ADD and T_DROP are well assigned. T_ADD is the threshold used for triggering a pilot with high strength to be added to the Active Set (AS) list. The AS means the pilots associated with the forward traffic channels assigned to mobile station. In contrast, T_DROP is the threshold used for triggering a pilot with low strength to be dropped from the AS list. This paper analyzes the effects of varying SHO thresholds in a cellular code division multiple access (CDMA) system on the blocking probability based on traffic load and geometrical distances in hexagonal layout of base stations (BSs). In addition, the previously proposed traffic load equation is applied to the proposed SHO model for balancing the numbers of new and handoff calls on the forward link capacity in case of uniform traffic load. The results show that the blocking probability is more sensitive to T_DROP than to T_ADD variations.},
keywords={},
doi={},
ISSN={},
month={April},}
Copy
TY - JOUR
TI - The Effects of Varying Soft Handoff Thresholds in Cellular CDMA System
T2 - IEICE TRANSACTIONS on Communications
SP - 807
EP - 815
AU - Bongkarn HOMNAN
AU - Watit BENJAPOLAKUL
AU - Katsutoshi TSUKAMOTO
AU - Shozo KOMAKI
PY - 2004
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E87-B
IS - 4
JA - IEICE TRANSACTIONS on Communications
Y1 - April 2004
AB - In order to benefit from the advantages of soft handoff (SHO), it is important that the SHO parameters (the SHO thresholds; T_ADD and T_DROP are well assigned. T_ADD is the threshold used for triggering a pilot with high strength to be added to the Active Set (AS) list. The AS means the pilots associated with the forward traffic channels assigned to mobile station. In contrast, T_DROP is the threshold used for triggering a pilot with low strength to be dropped from the AS list. This paper analyzes the effects of varying SHO thresholds in a cellular code division multiple access (CDMA) system on the blocking probability based on traffic load and geometrical distances in hexagonal layout of base stations (BSs). In addition, the previously proposed traffic load equation is applied to the proposed SHO model for balancing the numbers of new and handoff calls on the forward link capacity in case of uniform traffic load. The results show that the blocking probability is more sensitive to T_DROP than to T_ADD variations.
ER -
English
