Wide-Band TD-CDMA MAC With Minimum-Power Allocation and Rate- and BER-Scheduling for Wireless Multimedia Networks

Wang, Xudong

doi:10.1109/tnet.2003.822663

Cited by 27 publications

(21 citation statements)

References 20 publications

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“…The goal is to explore whether the decomposition into two layers using an exchange of information about current and target achievement ratios is effective. The following parameters are used throughout this subsection: σ ψ dB is uniformly distributed in [5,12], λ = 10 −2 , and μ i = 10 −4 . For the same of simplicity, all users have the same utility function…”

Section: B Performance Of the Proposed Cac-ra And Rs Architecturementioning

confidence: 99%

Cross layer dynamic resource allocation with targeted throughput for WCDMA data

Zhang

Jordan

2008

IEEE Trans. Wireless Commun.

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Abstract-We consider resource allocation for elastic wireless applications that measure utility by target connection average throughput and achieved throughput. We construct a framework for connection access control and rate scheduling that supports this class of applications by maximizing long term average utility. We present a decomposition of the problem into connection access control and rate scheduling layers. The connection access control layer considers current commitments and decides whether to admit new sessions. For admitted users, the layer sets a target throughput to be achieved of the lifetime of the session. The rate scheduling layer adjusts the instantaneous rates of each connection on the basis of how well it is achieving each performance goal and on the relative strength of each connection's current channel. We illustrate how commonly used connection access control and rate scheduling techniques can be applied to design these two layers using an exchange of information regarding future target throughputs and achieved throughputs. Through numerical analysis, we show how wireless channel time diversity and multi-user diversity can be exploited to construct a rate scheduling algorithm that is superior to proportional fairness. Finally, this utility-based framework is compared to a method that does not use utility.

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Section: B Performance Of the Proposed Cac-ra And Rs Architecturementioning

confidence: 99%

Cross layer dynamic resource allocation with targeted throughput for WCDMA data

Zhang

Jordan

2008

IEEE Trans. Wireless Commun.

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“…These requirements for each class are shown in Table I [9], [10], [11]. We consider best effort data service which is delay tolerant.…”

Section: Qos Requirementsmentioning

confidence: 99%

Link Layer Priority Techniques for Real-Time Traffic in CDMA Wireless Mesh Networks

Alsabaan

Zhuang

Wang

2008

2008 IEEE International Conference on Communications

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The need to support integrated services and provide quality of service (QoS) for various applications is one of the fundamental challenges for successful wireless mesh network (WMN) deployment. In order to provide differentiated services, medium access control (MAC) should have priority management at the link layer. In code division multiple access (CDMA) based WMNs, the interference phenomenon and simultaneous transmissions must be considered. We propose two priority schemes for MAC in a distributed CDMA-based WMN, taking into account interference, multimedia services, QoS requirements, and simultaneous transmissions. In addition, we propose to use an adaptive spreading gain and a frame structure to achieve high resource utilization. Simulation results demonstrate that the proposed schemes can achieve effective QoS guarantee.

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“…In the seven slots, the first slot is a CA slot and the others are CF slots. The switching points can be designed to separate the locations of the seven slots [4]. The maximum transmission rate capability in Table I describes the maximum number of packets that can be transmitted by a terminal in a single slot.…”

Section: A Traffic Modelmentioning

confidence: 99%

“…Huang and Zhuang [3] designed a MAC for time-division duplex CDMA (TDD-CDMA) networks, in which an optimal packet scheduling algorithm is used to allocate system resources to each user. More recently, Wang [4] introduced a MAC protocol that uses a minimumpower allocation algorithm to minimize the interference (and thus increase the capacity of the network). Furthermore, both rate-and BERscheduling are used to maximize throughput.…”

Section: Introductionmentioning

confidence: 99%

“…Based on WISPER, Wang [4] proposed a power minimization algorithm and both rate-and BERscheduling algorithms are applied. The proposed protocol, which maximizes the slot capacity by allocating the resources using iterative scheduling algorithms and minimizing the power levels at the same time, further improves the performance of WISPER, but at the expense of increased computational complexity.…”

Section: Introductionmentioning

confidence: 99%

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A Joint PRMA and Packet Scheduling MAC Protocol for Multimedia CDMA Cellular Networks

Shu

Sakurai

Zukerman

et al.

2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications

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We propose a new low-complexity MAC solution for multimedia CDMA cellular networks considering packet reservation and scheduling jointly. The proposed MAC, which we call joint PRMA and packet scheduling (JPPS), treats realtime traffic and non-real-time traffic separately. Once a real-time traffic flow (a continuous packet burst) is admitted to the system, its code channel(s) will be implicitly reserved until its last packet is transmitted, as in PRMA. Real-time traffic has delay priority over non-real-time, and we also prioritize within various nonreal-time traffic flows. Packet scheduling techniques are then used to schedule all the real-time and non-real-time packets.Furthermore, an optimal channel access scheme based on a simple linear program is proposed. Simulation results comparing the performance of JPPS versus the well-known MAC protocol WISPER demonstrate lower delay for real time traffic and lower overall packet loss ratio for JPPS.

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Wide-Band TD-CDMA MAC With Minimum-Power Allocation and Rate- and BER-Scheduling for Wireless Multimedia Networks

Cited by 27 publications

References 20 publications

Cross layer dynamic resource allocation with targeted throughput for WCDMA data

Cross layer dynamic resource allocation with targeted throughput for WCDMA data

Link Layer Priority Techniques for Real-Time Traffic in CDMA Wireless Mesh Networks

A Joint PRMA and Packet Scheduling MAC Protocol for Multimedia CDMA Cellular Networks

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