Opportunistic power scheduling for dynamic multi-server wireless systems

Jang Won Lee; Ravi R. Mazumdar; Ness B. Shroff

doi:10.1109/TWC.2006.1638671

Opportunistic power scheduling for dynamic multi-server wireless systems

Jang Won Lee, Ravi R. Mazumdar, Ness B. Shroff

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

86 Citations (Scopus)

Abstract

In this paper, we present an opportunistic power scheduling scheme, i.e., a joint time-slot and power allocation scheme for downlink communication in wireless systems. Unlike past works, we allow multiple transmissions in a time-slot that could potentially interfere with each other. These multiple transmissions are allowed to achieve high system efficiency. Hence, it is important to not only select the mobiles to be scheduled in a timeslot, but also to allocate an appropriate transmission power level to these scheduled mobiles. We model the time-varying wireless channel as a stochastic process and formulate a stochastic optimization problem that attempts to maximize the expected total system utility with general constraints on performance or fairness. The power scheduling algorithm is obtained by using stochastic duality and implemented via stochastic subgradient techniques.

Original language	English
Article number	1638671
Pages (from-to)	1506-1515
Number of pages	10
Journal	IEEE Transactions on Wireless Communications
Volume	5
Issue number	6
DOIs	https://doi.org/10.1109/TWC.2006.1638671
Publication status	Published - 2006 Jun

Bibliographical note

Funding Information:
Manuscript received June 24, 2004; revised January 10, 2005; accepted March 25, 2005. The associate editor coordinating the review of this paper and approving it for publication was M. Zorzi. This research has been supported in part by NSF grants ANI-0073359, ANI-9805441, and ANI-0207728.

All Science Journal Classification (ASJC) codes

Computer Science Applications
Electrical and Electronic Engineering
Applied Mathematics

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10.1109/TWC.2006.1638671

Cite this

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title = "Opportunistic power scheduling for dynamic multi-server wireless systems",

abstract = "In this paper, we present an opportunistic power scheduling scheme, i.e., a joint time-slot and power allocation scheme for downlink communication in wireless systems. Unlike past works, we allow multiple transmissions in a time-slot that could potentially interfere with each other. These multiple transmissions are allowed to achieve high system efficiency. Hence, it is important to not only select the mobiles to be scheduled in a timeslot, but also to allocate an appropriate transmission power level to these scheduled mobiles. We model the time-varying wireless channel as a stochastic process and formulate a stochastic optimization problem that attempts to maximize the expected total system utility with general constraints on performance or fairness. The power scheduling algorithm is obtained by using stochastic duality and implemented via stochastic subgradient techniques.",

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Opportunistic power scheduling for dynamic multi-server wireless systems

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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