دانلود مقاله ISI انگلیسی شماره 70306
عنوان فارسی مقاله

چندپخشی قابل اعتماد مبتنی بر برنامه نویسی شبکه در شبکه های بی سیم

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
70306 2010 14 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Network coding-based reliable multicast in wireless networks
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Computer Networks, Volume 54, Issue 11, 2 August 2010, Pages 1823–1836

کلمات کلیدی
شبکه های بی سیم؛ برنامه نویسی شبکه؛ چندپخشی قابل اعتماد؛ پخش لایه فیزیکی؛ صرفه جویی در پهنای باند
پیش نمایش مقاله
پیش نمایش مقاله چندپخشی قابل اعتماد مبتنی بر برنامه نویسی شبکه در شبکه های بی سیم

چکیده انگلیسی

Reliable multicast, the lossless dissemination of data from one sender to a group of receivers, has a wide range of important applications. Recently, network coding has been applied to the reliable multicast in wireless networks, where multiple lost packets with distinct intended receivers are XOR-ed together as one packet and forwarded via single retransmission, resulting in a significant reduction of bandwidth consumption. However, the simple XOR operation cannot fully exploit the potential coding opportunities and finding the optimal set of lost packets for XOR-ing is a complex NP-complete optimization problem. In this work, we intend to move beyond the simple XOR to more general coding operations. Specifically, we propose two new schemes (a static scheme which repeatedly retransmits one coding packet until all intended receivers receive it and a dynamic scheme which updates the coding packet once one or more receivers receive it) to encode packets with more general coding operations, which not only can encode lost packets with common intended receivers together to fully exploit the potential coding opportunities but also have polynomial-time complexity. We demonstrate, through both analytical and simulation results, that the proposed schemes can more greatly reduce the bandwidth requirement than the available coding-based schemes, especially in the case of high packet loss probabilities and a larger number of receivers. This reduction can vary from a few percents to over 15% depending on the packet loss probabilities and the number of receivers.

خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.