Quality-of-information aware transmission policies with time-varying links

Ertugrul Necdet Ciftcioglu, Aylin Yener

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    10 Scopus citations


    We consider Quality-of-Information (QoI) aware transmission policies in the presence of time-varying links in a mobile ad hoc network. QoI, tailored for military tactical networks, is defined by a set of attributes relevant to the application. Time-varying nature of links in practical networks leads to uncertainty in evaluating QoI utility to be delivered to end users. This delivered-QoI utility is a function of both attributes provided by the source input, as a result of observing certain events, and the channel induced attributes that impact the QoI obtained at the destination. The goal of this paper is to attain the maximum QoI output utility, termed as Operational Information Content Capacity (OICC) of a network. First, for a single link, we demonstrate that the optimal decision structure for transmission is threshold-based. Next, we consider multihop relay networks. For the basic model of a two-hop relay network, we propose transmission scheduling and link activation schemes based on approximate dynamic programming methods. Furthermore, we exploit time-variations of links by opportunistic scheduling by employing buffers at the relay node. We demonstrate that significant gains in QoI output utility are gained by opportunistic scheduling algorithms.

    Original languageEnglish (US)
    Title of host publication2010 Military Communications Conference, MILCOM 2010
    Number of pages6
    StatePublished - 2011
    Event2011 IEEE Military Communications Conference, MILCOM 2011 - Baltimore, MD, United States
    Duration: Nov 7 2011Nov 10 2011

    Publication series

    NameProceedings - IEEE Military Communications Conference MILCOM


    Other2011 IEEE Military Communications Conference, MILCOM 2011
    Country/TerritoryUnited States
    CityBaltimore, MD

    All Science Journal Classification (ASJC) codes

    • Electrical and Electronic Engineering


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