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Exploration for Soft Handoff Decorations in CDMA Systems
2014
Research Journal of Applied Sciences Engineering and Technology
The proposed scheme of winnable handoff calculating with original mobility, this set up was used in Channel Changeable Set (CCS). ...
CDMA system has introduced the signal propagation performed and overcast the system. ...
In this paper, IS95/CDMA2000 is conventional soft handoff is implemented in CDMA cellular systems. ...
doi:10.19026/rjaset.7.898
fatcat:prie46bhebb6njsse3pnupi3ry
Performance Evaluation of Spectrum Detection in Cognitive Radio Network
2014
International Journal of Communications, Network and System Sciences
In mobility management, detection of spectrum hole plays very important role for doing spectrum handoff mechanism. ...
But in case of reactive spectrum handoff mechanism, spectrum handoff delay becomes tedious task. ...
It proves that our proposed approach has the improved efficient performance on reducing CR system spectrum handoff delay. ...
doi:10.4236/ijcns.2014.711049
fatcat:vzigws3qhnfzjnl2synxbmxmjy
Soft handoffs in CDMA mobile systems
1997
IEEE personal communications
This change is known as a handoff. In first-generation cellular systems like the Advanced Mobile Phone System (AMPS) [1, 2] , handoffs were relatively simple. ...
The control/decision structures have been improved so that in progressing from network-controlled toward mobileassisted handoffs (MAHO) or mobile-controlled handoffs (MCHO), the handoff decision delay ...
Ltd. for providing information on soft handoffs in the IS-95 standard. The authors also thank the reviewers for their helpful comments. The first author thanks Prof. ...
doi:10.1109/98.637378
fatcat:ipm2ntiqmnevhmcrawjbqv3lge
Modeling and Performance Analysis for Soft Handoff Schemes in CDMA Cellular Systems
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. ...
CONCLUSION In this paper, a new view of cellular geometry in the CDMA system and a relative mobility algorithm for soft handoff are proposed. ...
doi:10.1109/tvt.2005.863347
fatcat:jrl4xussuffublrqgythcy4ej4
A call admission control scheme for packet data in CDMA cellular communications
2006
IEEE Transactions on Wireless Communications
In wireless cellular communication systems, call admission control (CAC) is to ensure satisfactory services for mobile users and maximize the utilization of the limited radio spectrum. ...
In this paper, we propose a new CAC scheme for a code division multiple access (CDMA) wireless cellular network supporting heterogeneous self-similar data traffic. ...
ACKNOWLEDGEMENTS The authors would like to thank the anonymous reviewers for their constructive comments which improve the presentation of this paper. ...
doi:10.1109/twc.2006.1611064
fatcat:xa2kntrpp5acxmi3cfu73dqkwy
Preserving HTTP Sessions in Vehicular Environments
2007
IEEE Transactions on Vehicular Technology
In this paper we identify several new issues arising from network heterogeneity in vehicular environments and concentrate on designing and implementing a network-aware prototype system that supports HTTP ...
and adaptation, (3) application-layer preemptive network handoff. ...
The adverse effect of handoff upon system performance could become prominent in highly mobile vehicular environments [11] . ...
doi:10.1109/tvt.2007.898374
fatcat:lkt2c4kbind7bf6wgjgi22xxdm
High data-rate packet communications for cellular networks using CDMA: algorithms and performance
1999
IEEE Journal on Selected Areas in Communications
In this paper, we describe a scheme for high data-rate packet service using CDMA that addresses all of the above problems and has been standardized in Revision B of IS-95. ...
The advantages of code division multiple access (CDMA) for cellular voice have become well known, and IS-95-based systems have now been widely deployed. ...
They also acknowledge the careful comments of all three anonymous reviewers that have helped improve the manuscript. ...
doi:10.1109/49.753732
fatcat:n3sifhh24ne6denamsmcbvhdu4
Quality-of-service provisioning and efficient resource utilization in CDMA cellular communications
2006
IEEE Journal on Selected Areas in Communications
With the rapid growth of the Internet, the demand for fast and location-independent mobile multimedia services will be steadily increasing in future IP-based CDMA cellular systems. ...
Compared with the circuit-switched voice service in the second-generation CDMA systems (i.e., IS-95), heterogeneous multimedia applications in future IP-based CDMA networks require more complex QoS provisioning ...
For both uplink and downlink of a CDMA system without channel fading, improved performance in system throughput can be achieved by the one-at-a-time scheduling, as indicated in Section II-A. ...
doi:10.1109/jsac.2005.858897
fatcat:zebpcprk4vbylodukzlf4oh2hq
IP-based access network infrastructure for next-generation wireless data networks
2000
IEEE personal communications
In this paper, we propose a homogeneous IPbased network as a common access network for the different wireless technologies. ...
The IP-based access network uses the internet standard, Mobile IP, for supporting macro-mobility of mobile hosts and HAWAII for supporting micro-mobility and paging functionality of current wireless networks ...
Assume that the mobile host illustrated in Figure 4 is idle and goes to standby state. ...
doi:10.1109/98.863994
fatcat:n6l2ppj5onha3bitl4dbbge7ma
A New Call Admission Control Scheme Based on Mobile Position Estimation in DS-CDMA Systems
2005
Wireless networks
Since subscriber mobility changes in time, the number of handoff attempts in each cell is subject to fluctuations, making static assignments (or periodical update) of a given number of guard channels inefficient ...
The reservation requests are made according to the recent mobility pattern of the subscriber. ...
Both idle and call durations are assumed to be exponentially distributed. The means for the idle and call durations vary according to the physical structure and system load. ...
doi:10.1007/s11276-005-6616-5
fatcat:lmexzk6ev5bkte323xn6uu7v3a
Guest editorial mobility and resource management in next generation wireless systems
2001
IEEE Journal on Selected Areas in Communications
ACKNOWLEDGMENT We express our thanks to the Editor-in-Chief, W. H. Tranter, and our liaison Editor, C.-T. Lea, for inviting us to edit this special issue and for their continuing keen interest. ...
The authors further demonstrate that the existence of asynchronous TS overlaps in a TD-CDMA/TDD system does not result in system degradation. ...
Guest Editorial Mobility and Resource Management in Next Generation Wireless Systems S ECOND GENERATION (2G) wireless systems such as Global System for Mobile communications (GSM), Personal Digital Cellular ...
doi:10.1109/jsac.2001.957299
fatcat:72vtjxypdfcwllr2ugr2pp2u3u
Cross-Layer Design and Analysis of Downlink Communications in Cellular CDMA Systems
2006
EURASIP Journal on Wireless Communications and Networking
Numerical results show the performance gain of each proposed scheme over independent performance of an individual layer in the wireless mobile network. ...
We are concerned with the role of each single layer as well as the interaction among layers, and propose algorithms/schemes accordingly to improve the system performance. ...
Soft handoff One of the major benefits of a CDMA system is the ability of a mobile to communicate with more than one base station at a time during the call [23] . ...
doi:10.1155/wcn/2006/21297
fatcat:zfqzuxqda5fkhn5aplu5zjd2l4
Evolution of wireless data services: IS-95 to cdma2000
1998
IEEE Communications Magazine
The proposed standard will support a high data rate (64 kb/s) in b o t h directions, t o and f r o m t h e mobile device. ...
The cdma2000 system includes a greatly enhanced air interface supporting CDMA over wider bandwidths for improved capacity and higher data rates while also maintaining backward compatibility w i t h existing ...
The figure shows a mobile in soft handoff with two BSs. In soft handoff, the mobile communicates on the fundamental code channel simultaneously with BS1 and BS2. ...
doi:10.1109/35.722150
fatcat:mxjwa4mlijasldz6rsd4pjda5u
MCIP: A 3G/IP Interworking System Supporting Inter-Cluster Soft Handoff
2006
Wireless personal communications
In this paper, a novel 3-tier Mobile Cellular IP (MCIP) access network is proposed for interworking between a third generation (3G) wireless cellular system and a wireline Internet Protocol (IP) based ...
The MCIP hard and soft handoff schemes are compared with the hard handoff schemes used in the Cellular IP and HAWAII access networks. ...
Soft handoff is supported only by code-division multiple access (CDMA) technology, while hard handoff is applicable in any cellular systems. ...
doi:10.1007/s11277-006-9038-5
fatcat:oay2qhqfozfprj3vxkl7f3xnaq
Dynamic sectorization of microcells for balanced traffic in CDMA: genetic algorithms approach
2002
IEEE Transactions on Vehicular Technology
The microcell sectorization problem is formulated as an integer linear programming which minimizes the blocked and handoff calls in the network. ...
In the proposed sectorization proper, connected, and compact sectors are considered to keep the handoffs as small as possible, while satisfying the channel capacity at each sector. ...
In this paper we examine sectorization of microcells in CDMA system to balance the dynamically changing traffic. ...
doi:10.1109/25.992068
fatcat:q6ir25liuzasfd5ruwtfxigpte
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