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A New Call Admission Control Scheme Based on Mobile Position Estimation in DS-CDMA Systems

Tuna Tugcu, Cem Ersoy
2005 Wireless networks  
The proposed scheme is evaluated against the classical guard channel scheme with a realistic mobility model.  ...  Thus, unnecessary allocation of guard channels is avoided resulting in a lower cost in terms of call dropping.  ...  The idea of adaptive call admission with likelihood estimation for DS-CDMA systems was first introduced in [6] . The rest of the paper is organized as follows.  ... 
doi:10.1007/s11276-005-6616-5 fatcat:lmexzk6ev5bkte323xn6uu7v3a

Hybrid channel assignment scheme for accommodating voice/data traffic in DS-CDMA cellular systems

Jeong Ho Kim, Tai Suk Kim, Young Woo Kim, Dan Keun Sung
2000 IEEE Transactions on Vehicular Technology  
A hybrid channel assignment (HCA) scheme in direct sequence-code division multiple access (DS-CDMA) systems for accommodating integrated voice/data traffic is proposed and the required power levels of  ...  The capacity region is derived and it can be used for controlling voice call admission and scheduling data packets.  ...  Fig. 1 shows a hybrid channel assignment (HCA) scheme in DS-CDMA systems. The proposed HCA scheme uses a CDMA-based FCA scheme for voice calls and a CDMA-based DCA scheme for data calls.  ... 
doi:10.1109/25.892540 fatcat:p5zxrzwadfcwligpcxax6sl5ou

Call Admission Policies Based on Calculated Power Control Setpoints in SIR-Based Power-Controlled DS-CDMA Cellular Networks

Derong Liu, Yi Zhang, Sanqing Hu
2004 Wireless networks  
In this paper, we develop call admission control algorithms for SIR-based power-controlled DS-CDMA cellular networks. We consider networks that handle both voice and data services.  ...  When a new call (or a handoff call) arrives at a base station requesting for admission, our algorithms will calculate the desired power control setpoints for the new call and all existing calls.  ...  In [6, 23, 29] , call admission schemes for SIR-based power-controlled DS-CDMA networks have been proposed.  ... 
doi:10.1023/b:wine.0000028550.82768.49 fatcat:mujnyv3xxberzped7cohsnutt4

Resource management in power-controlled cellular wireless systems

Mingbo Xiao, Ness B. Shroff, Edwin K. P. Chong
2001 Wireless Communications and Mobile Computing  
Considering the unique features of multimedia traffic to be supported in future wireless systems, we also review power and rate control schemes proposed for wireless data, and present a framework for utility-based  ...  We highlight the feasibility issue in a power-controlled system, which enables us to push the system toward high efficiency, and prevent the system from collapsing at the same time.  ...  An admission control scheme based on voluntary dropping of the new users was proposed in Reference [47] , which rejects a new call when its SIR does not improve fast enough.  ... 
doi:10.1002/wcm.6 fatcat:npwqmsh3qrfc7lj277elmrb2e4

SIR-based call admission control by intercell interference prediction for DS-CDMA systems

Il-Min Kim, Byung-Cheol Shin, Dong-Jun Lee
2000 IEEE Communications Letters  
A new signal-to-interference ratio (SIR)-based call admission control (CAC) scheme is proposed in DS-CDMA systems.  ...  Numerical results show that this scheme outperforms previous SIR-based CAC schemes. Index Terms-Call admission control, CDMA, SIR.  ...  SIR-BASED CALL ADMISSION CONTROL BY INTERCELL INTERFERENCE PREDICTION Let be a set of all cells in the system and be a set of cells which is close enough, even though not adjacent, to cell that a pilot  ... 
doi:10.1109/4234.823540 fatcat:qzueytpebvacvh5c6gwasp2yba

A Self-Learning Call Admission Control Scheme for CDMA Cellular Networks

D. Liu, Y. Zhang, H. Zhang
2005 IEEE Transactions on Neural Networks  
In the present paper, a call admission control scheme that can learn from the network environment and user behavior is developed for code division multiple access (CDMA) cellular networks that handle both  ...  The use of adaptive critic approach for call admission control in wireless cellular networks is new.  ...  CONCLUSION In this paper, we developed a self-learning call admission control algorithm based on ACDs for multiclass traffic in SIRbased power-controlled DS-CDMA cellular networks.  ... 
doi:10.1109/tnn.2005.853408 pmid:16252828 fatcat:qfe5fsnhubg5bpmpij5u2a4qbi

Advanced Dsp For Improved Wireless Accass In Mobile Communications

Emad Al-susa, Su Yong, Chia Chong, Yeonwoo Lee, J.S. Thompson, P.M. Grant
2004 Zenodo  
Publication in the conference proceedings of EUSIPCO, Viena, Austria, 2004  ...  The adaptive DS-CDMA/OFDM system proposed here is based on a downlink scenario as shown in Figure 5 .  ...  All of these are integrated by establishing RMR in which the calculation and estimation of resource availability are performed based on the resource region decision criteria and help the call admission  ... 
doi:10.5281/zenodo.38175 fatcat:hjrkurxxvrevzfaxr3roo3tghq

Intelligent Call Admission Control for Wideband CDMA Cellular Systems

S. Shen, C.-J. Chang, C.Y. Huang, Q. Bi
2004 IEEE Transactions on Wireless Communications  
In this paper, we propose intelligent call admission control for wideband code-division multiple-access (CDMA) cellular systems to support differentiated quality-of-service (QoS) requirements, guarantee  ...  The intelligent call admission controller (ICAC) contains a fuzzy call admission processor to make admission decision for a call request by considering QoS measures such as the forced termination (drop  ...  [7] proposed to reserve a number of radio channels to protect handoff calls in DS-CDMA cellular systems, where the amount of interference of a connection is quantized as one radio channel.  ... 
doi:10.1109/twc.2004.834702 fatcat:nvp23odl45d3lo5yyp7f7d47xm

Modeling and Performance Analysis for Soft Handoff Schemes in CDMA Cellular Systems

X. Ma, Y. Cao, Y. Liu, K.S. Trivedi
2006 IEEE Transactions on Vehicular Technology  
Some important characteristics of the cellular configuration in soft handoff systems are used to propose a new design of efficient call admission control (CAC) in CDMA systems.  ...  A new soft handoff scheme-eliminating pseudo handoff calls (EPHC)-is proposed to improve channel utilization efficiency based on mobility information.  ...  Then, based on relative mobility estimation, a new soft handoff scheme (EPHC), which increases system channel utilization and decreases handoff dropping probability, is presented.  ... 
doi:10.1109/tvt.2005.863347 fatcat:jrl4xussuffublrqgythcy4ej4

Call admission control in multiservice high altitude platform (HAP) W-CDMA cellular systems

Stylianos Karapantazis, Fotini-Niovi Pavlidou
2007 Computer Networks  
Of the various radio resource management functions, in this paper we focus on call admission control (CAC).  ...  Based on the obtained statistics, we then develop a CAC scheme that takes account of power control imperfections and user mobility and compare it to a CAC scheme that is based on instantaneous energy per  ...  Of the various radio resource management functions of a HAP W-CDMA system, in this paper we focus on call admission control (CAC).  ... 
doi:10.1016/j.comnet.2007.02.003 fatcat:53r6ig5vwvgg3fovlz3hty6iaa

An overview of CAC principles in DS-CDMA networks - Call admission control in wireless multimedia networks

R.M. Rao, C. Comaniciu, T.V. Lakshman, H.V. Poor
2004 IEEE Signal Processing Magazine  
all admission control (CAC) is a mechanism used in networks to administer quality of service (QoS).  ...  In such systems, the CAC design leads to significant interaction between the physical-and medium-access control layers.  ...  Acknowledgments This work was supported in part by NSF Grant CCR 00-86017 and Xerox-UAC Grant HE-1442-2003. Raghuveer M. Rao  ... 
doi:10.1109/msp.2004.1328088 fatcat:2c54yiy6ebbu3jk6puzshe4auy

2005 Index

2005 IEEE Transactions on Vehicular Technology  
Cellular radio QoS negotiation-based admission control scheme for WCDMA mobile wireless multiclass services.  ...  Bin Xia, + , T-VT May 05 1070-1080 QoS negotiation-based admission control scheme for WCDMA mobile wireless multiclass services.  ...  Land mobile radio cellular systems arbitrary call-arrival rates, CDMA cellular systs., mobility-based CAC algm.  ... 
doi:10.1109/tvt.2005.863647 fatcat:7ftwl4fyt5adfatoufxaoldhai

An FDD wideband CDMA MAC protocol with minimum-power allocation and GPS-scheduling for wireless wide area multimedia networks

2005 IEEE Transactions on Mobile Computing  
To control the admission of real-time connections, a connection admission control (CAC) scheme is proposed, in which the effective bandwidth admission region is derived based on the minimum-power allocation  ...  Based on the minimum-power allocation algorithm, a multimedia wideband CDMA generalized processor sharing (GPS) scheduling scheme is proposed.  ...  Having these constraints in mind, we propose a new scheduling scheme, called wideband CDMA GPS scheduling, in this section.  ... 
doi:10.1109/tmc.2005.4 fatcat:44xobwkaprbmbmiidxkf5noiwe

A delay bounded approach for streaming services in CDMA cellular networks

Yaser Khamayseh, Ehab S. Elmallah
2005 Proceedings of the 1st ACM international workshop on Quality of service & security in wireless and mobile networks - Q2SWinet '05  
To achieve acceptable performance, we examine the use of a novel admission control scheme that takes user mobility into consideration.  ...  Performance of the proposed admission control scheme in conjunction with the devised scheduling procedure is analyzed using simulation.  ...  SIMULATION RESULTS In this section we compare the performance of the utilized predictive CAC scheme against a conventional number based admission control scheme.  ... 
doi:10.1145/1089761.1089783 dblp:conf/mswim/KhamaysehE05 fatcat:3rlzfeb3wje3ni42w3megmwoq4

Asymmetric Radio Resource Assignment Scheme for Connection-less Services in CDMA/Shared-TDD Cellular Packet Communications

2005 IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences  
This paper proposes a TDD boundary control (resource assignment) scheme, which can optimize a position of the TDD boundary based on the ratio of uplink to downlink traffic in code division multiple access  ...  The proposed scheme controls the TDD boundary based on the estimated uplink and downlink traffic.  ...  Since current mobile communication systems mainly offer connection-oriented services, base stations can easily obtain the traffic volume in both links by using call admission control.  ... 
doi:10.1093/ietfec/e88-a.7.1903 fatcat:nrnslbybfbeydecw5nxp2pi5ji
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