Mechanism-based resource allocation for multimedia transmission over spectrum agile wireless networks

Fattahi, A.R.; Fu, Fang; Schaar, Mihaela van der; Paganini, Fernando

doi:10.1109/jsac.2007.070410

Cited by 46 publications

(38 citation statements)

References 16 publications

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“…These auctions result in truth-telling equilibria while enabling spectrum reuse to improve spectrum utilization. In (Fattahi, Fu, Van Der Schaar & Paganini 2007), a spectrum allocation mechanism for multimedia transmission is presented. In this work users' and system performance are quantified when wireless stations employ different cross-layer strategies, and they are compared with optimal global performance.…”

Section: 7mentioning

confidence: 99%

Power allocation and spectrum sharing in wireless networks: an implementation theory approach

Kakhbod

Nayyar

Sharma

et al. 2013

Mechanisms and Games for Dynamic Spectrum Allocation

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Section: 7mentioning

confidence: 99%

Power allocation and spectrum sharing in wireless networks: an implementation theory approach

Kakhbod

Nayyar

Sharma

et al. 2013

Mechanisms and Games for Dynamic Spectrum Allocation

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“…The important QoS issue has been considered in [14,28,52,56]. The focus of these papers are on metrics such as throughput and delay.…”

Section: Related Work 251 Cognitive Radio Networkmentioning

confidence: 99%

“…The focus of these papers are on metrics such as throughput and delay. Fattahi et al [14] propose a game theoretic approach for the problem of resource allocation for multimedia transmission in spectrum-agile wireless networks, where each station plays a resource management game coordinated by a network moderator. In [56], a cognitive MAC protocol is proposed to establish a CR adhoc network.…”

Section: Related Work 251 Cognitive Radio Networkmentioning

confidence: 99%

Video streaming over cognitive radio networks

Dastpak

Liu

Hefeeda

2012

Proceedings of the 4th Workshop on Mobile Video

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In recent years, there has been a tremendous growth in multimedia applications over the wireless Internet. The significant bandwidth requirement for multimedia services has increased the demand for radio spectrum. The scarcity of radio spectrum has challenged the conventional fixed spectrum assignment policy. As a result, cognitive radio emerged as a new paradigm to address the spectrum underutilization problem by enabling users to opportunistically access unused spectrum bands. In this thesis, we propose a framework for video transmission over cognitive radio networks. Our objective is to determine the optimal streaming policy in order to maximize the overall perceived video quality while keeping quality fluctuation at minimum. In our framework, we introduce a channel usage model based on a two-state Markov model and estimate the future busy and idle durations of the spectrum based on past observations. On the basis of this scheme, we formulate the streaming optimization problem under the constraint of the available bandwidth budget so that the optimal number of enhancement layer bits are assigned to each frame. We extend this algorithm for three different optimization levels: frame, GOP and scene. We evaluate our algorithm through extensive trace-driven simulation, and show that it improves the perceived video quality and increases bandwidth utilization.

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“…), taking into account both its node characteristics and traffic demand (i.e., traffic type, maximum acceptable delay, jitter, etc.). However, a selfish node could choose not to conform to this rule and request more resources than it really needs [11]. Motivated either by greed or fear of problems in case of sudden QoS degradation, a node may choose to lie (over-claim), particularly if no cost is associated with resource requests (/reservations).…”

Section: Spectrum Needs Over-reportingmentioning

confidence: 99%

“…At the same time, efforts have been made to limit the benefits of non-conformant behavior. The proposed mechanisms are based on reputation schemes [9], tit-for-tat models [10], punish/reward schemes or transfer models [11], where some kind of compensation is offered in return for using a spectrum portion. Still, an important assumption is the existence of a mechanism for effective detection of nonconformant operation and identification of misbehaving nodes (and even malicious intent).…”

mentioning

confidence: 99%

Misbehavior Scenarios in Cognitive Radio Networks

et al. 2010

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Recent advances in the fields of Cognitive Radio and the proliferation of open spectrum access promise that spectrum-agile wireless communication will be widespread in the near future, and will bring significant flexibility and potential utility improvements for end users. With spectrum efficiency being a key objective, most relevant research focuses on smart coexistence mechanisms. However, wireless nodes may behave selfishly and should be considered as rational autonomous entities. Selfishness, pure malice or even faulty equipment can lead to behavior that does not conform to sharing protocols and etiquette. Thus, there is a need to secure spectrum sharing mechanisms against attacks in the various phases of the sharing process. Identifying these attacks and possible countermeasures is the focus of this work.

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Mechanism-based resource allocation for multimedia transmission over spectrum agile wireless networks

Cited by 46 publications

References 16 publications

Power allocation and spectrum sharing in wireless networks: an implementation theory approach

Power allocation and spectrum sharing in wireless networks: an implementation theory approach

Video streaming over cognitive radio networks

Misbehavior Scenarios in Cognitive Radio Networks

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