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    Delay-sensitive content distribution via peer-to-peer collaboration in public safety vehicular ad-hoc networks

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    1-s2.0-S1570870513002989-main.pdf (2.295Mb)
    Date
    2014
    Author
    Atat, Rachad
    Yaacoub, Elias
    Alouini, Mohamed-Slim
    Filali, Fethi
    Abu-Dayya, Adnan
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    Abstract
    Delay-sensitive content distribution with peer-to-peer (P2P) cooperation in public safety vehicular networks is investigated. Two cooperative schemes are presented and analyzed. The first scheme is based on unicasting from the base station, whereas the second is based on threshold based multicasting. Long Term Evolution (LTE) is used for long range (LR) communications with the base station (BS) and IEEE 802.11p is considered for inter-vehicle collaboration on the short range (SR). The first scheme is shown to outperform non-cooperative unicasting and multicasting, while the second scheme outperforms non-cooperative unicasting beyond a specific number of cooperating vehicles, when the appropriate 802.11p power class is used. The first scheme achieves the best performance among the compared methods, and a practical approximation of that scheme is shown to be close to optimal performance.
    DOI/handle
    http://dx.doi.org/10.1016/j.adhoc.2013.12.007
    http://hdl.handle.net/10576/59417
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