Joint Power Control and Rate Adaptation for Video Streaming in Wireless Networks with Time-Varying Interference

Ayaz Ahmad, Naveed Ul Hassan, Mohamad Assaad, Tembine Hamidou

    Research output: Contribution to journalArticle

    Abstract

    This paper considers a cross-layer optimization framework for video streaming in multinode wireless networks with a time-varying interference environment. We develop a distributed joint power control and rate adaptation framework that exploits the time diversity of the wireless channels, satisfies the hard delay constraints associated with video applications, and respects a certain fairness criterion among the nodes. The proposed framework performs power allocation at the physical/media access control layers to achieve a certain target signal-to-interference-plus-noise ratio, such that the difference between the arrival and the departure rates at the queues is very small, and performs video rate adaptation at the video coding layer (upper layer) according to the nodes' demanded video quality, their channel conditions, and a given fairness criterion. A main challenge here is that the adaptation of the video rate and the power control is not performed at the same time scale. We deal with this issue and model the power and rate variations of the nodes as linear stochastic dynamic equations and formulate a risk-sensitive control problem that captures the hard delay constraints of the video services and the fairness criterion for resource utilization. We provide an optimal solution for this control problem and illustrate the performance of our framework through simulations.

    Original languageEnglish (US)
    Article number7273961
    Pages (from-to)6315-6329
    Number of pages15
    JournalIEEE Transactions on Vehicular Technology
    Volume65
    Issue number8
    DOIs
    StatePublished - Aug 1 2016

    Fingerprint

    Rate Adaptation
    Video Streaming
    Video streaming
    Power Control
    Power control
    Wireless Networks
    Wireless networks
    Time-varying
    Interference
    Fairness
    Medium access control
    Image coding
    Control Problem
    Vertex of a graph
    Risk-sensitive Control
    Cross-layer Optimization
    Video Quality
    Medium Access Control
    Video Coding
    Power Allocation

    Keywords

    • Power control
    • rate adaptation
    • video streaming

    ASJC Scopus subject areas

    • Automotive Engineering
    • Aerospace Engineering
    • Computer Networks and Communications
    • Applied Mathematics
    • Electrical and Electronic Engineering

    Cite this

    Joint Power Control and Rate Adaptation for Video Streaming in Wireless Networks with Time-Varying Interference. / Ahmad, Ayaz; Ul Hassan, Naveed; Assaad, Mohamad; Hamidou, Tembine.

    In: IEEE Transactions on Vehicular Technology, Vol. 65, No. 8, 7273961, 01.08.2016, p. 6315-6329.

    Research output: Contribution to journalArticle

    Ahmad, Ayaz ; Ul Hassan, Naveed ; Assaad, Mohamad ; Hamidou, Tembine. / Joint Power Control and Rate Adaptation for Video Streaming in Wireless Networks with Time-Varying Interference. In: IEEE Transactions on Vehicular Technology. 2016 ; Vol. 65, No. 8. pp. 6315-6329.
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