Dynamic bandwidth allocation for multimedia traffic with rate guarantee and fair access in WCDMA systems

Chao, Chih–Min; Tseng, Yu–Chee; Wang, Lichun

doi:10.1145/941012.941017

Cited by 11 publications

(19 citation statements)

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“…The code utilization and blocking benefits are achieved for a resource wastage ratio of 40%. The paper [21] discusses credit management and compensation management mechanisms to provide fair access and data rate guarantee. The multiple codes are used for two reasons, (a) to compensate terminal encountered errors, (b) to adopt an environment with multiple linked states.…”

Section: Related Workmentioning

confidence: 99%

Performance Improvement in OVSF Based CDMA Networks Using Flexible Assignment of Data Calls

Saini¹,

Sharma²

2011

IJCNC

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Section: Related Workmentioning

confidence: 99%

Performance Improvement in OVSF Based CDMA Networks Using Flexible Assignment of Data Calls

Saini¹,

Sharma²

2011

IJCNC

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“…This type of credit-based prioritization does not provide low packet delays and QoS differentiation. At [10] the proposed credit-based scheme provides QoS differentiation between users by introducing a variation of the credit variable, the normalized credit. The normalized credit is defined as the ratio C i /a i where a i is the guaranteed rate of user i.…”

Section: Related Workmentioning

confidence: 99%

A Cross Layer Scheduling Framework for Supporting Bursty Data Applications in WCDMA Networks

El-atty

Skoutas

Rouskas

et al. 2007

Wireless Pers Commun

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In future wireless networks multimedia applications are expected to finally dominate the overall traffic volume. Shared channels are more suitable for the transmission of this type of traffic, as they are able to periodically adjust their transmission rate. In this paper, we introduce a cross-layer framework for WCDMA based networks which aims to make the packet scheduling procedure more efficient. In addition to that, we further propose a traffic scheduling scheme which serves the connections not only according to their delay sensitivity, but also according to the predicted state of their wireless channel. The efficiency of the proposed scheme, in terms of average packet delay and channel utilization is verified via simulations.

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“…The scheme of Cheng and Lin [6] or Chao et al [4], for example, assumes multi-code transmission, whereas we assume single-code transmission. Because schemes based on multi-code transmission are largely irrelevant to ours, we do not include them in this brief survey.…”

Section: Related Workmentioning

confidence: 99%

Region Division Assignment: A New OVSF Code Reservation and Assignment Scheme for Downlink Capacity in W-CDMA Systems

et al. 2005

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This work focuses on the efficient management of orthogonal-variable-spreading-factor (OVSF) codes for multimedia communications in the W-CDMA systems. Because these systems must assign only OVSF codes that are mutually orthogonal, even if they have sufficient transmission capacity they block connections for which no orthogonal OVSF codes are available. This code blocking can, with extra overhead, be eliminated by reassigning codes, but in this paper we propose an OVSF code management scheme designed to not reassign codes. This scheme, called Region Division Assignment, cannot eliminate code blocking but can reduce the overhead for code assignment. Computer simulations based on the multiple access protocol in UMTS/IMT-2000 show that the proposed scheme can efficiently provide variable-rate services as well as low-rate services.

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Dynamic bandwidth allocation for multimedia traffic with rate guarantee and fair access in WCDMA systems

Cited by 11 publications

References 0 publications

Performance Improvement in OVSF Based CDMA Networks Using Flexible Assignment of Data Calls

Performance Improvement in OVSF Based CDMA Networks Using Flexible Assignment of Data Calls

A Cross Layer Scheduling Framework for Supporting Bursty Data Applications in WCDMA Networks

Region Division Assignment: A New OVSF Code Reservation and Assignment Scheme for Downlink Capacity in W-CDMA Systems

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