Two-hop networks with energy harvesting: The (non-)impact of buffer size

Burak Varan, Aylin Yener

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

    22 Scopus citations

    Abstract

    In this paper, a two-hop channel is considered with energy harvesting transmitter nodes. In particular, the offline throughput maximization problem is solved for a constant power relay, and a relay with one energy arrival, in both cases assuming a finite buffer is available at the relay for temporarily storing data received from the source. The focus is on assessing the impact of this data buffer at the relay on optimal transmission policies. The solution is found indirectly, by first assuming that the relay has an infinite size buffer, and then proving that an optimal policy exists that does not require any data buffer at the relay, thus solving the problem regardless of the data buffer size at the relay. Numerical results demonstrate that the proposed solution performs significantly better than naïve policies, and a constant relay rate limits the average throughput as the peak energy harvest rate for the source increases.

    Original languageEnglish (US)
    Title of host publication2013 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2013 - Proceedings
    Pages399-402
    Number of pages4
    DOIs
    StatePublished - Dec 1 2013
    Event2013 1st IEEE Global Conference on Signal and Information Processing, GlobalSIP 2013 - Austin, TX, United States
    Duration: Dec 3 2013Dec 5 2013

    Publication series

    Name2013 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2013 - Proceedings

    Other

    Other2013 1st IEEE Global Conference on Signal and Information Processing, GlobalSIP 2013
    CountryUnited States
    CityAustin, TX
    Period12/3/1312/5/13

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    All Science Journal Classification (ASJC) codes

    • Information Systems
    • Signal Processing

    Cite this

    Varan, B., & Yener, A. (2013). Two-hop networks with energy harvesting: The (non-)impact of buffer size. In 2013 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2013 - Proceedings (pp. 399-402). [6736899] (2013 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2013 - Proceedings). https://doi.org/10.1109/GlobalSIP.2013.6736899