دانلود مقاله ISI انگلیسی شماره 70592
عنوان فارسی مقاله

معماری شبکه تعاونی چندhop بین لایه ای برای شبکه های ad hoc بی سیم ☆☆☆

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
70592 2013 20 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
A cross-layer multi-hop cooperative network architecture for wireless ad hoc networks ☆☆☆
منبع

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

Journal : Computer Networks, Volume 57, Issue 18, 24 December 2013, Pages 4010–4029

کلمات کلیدی
ارتباطات تعاونی؛ شبکه های ad hoc؛ مسیریابی تعاونی
پیش نمایش مقاله
پیش نمایش مقاله معماری شبکه تعاونی چندhop بین لایه ای برای شبکه های ad hoc بی سیم  ☆☆☆

چکیده انگلیسی

In this paper, a novel decentralized cross-layer multi-hop cooperative network architecture is proposed and presented. This cross-layer architecture introduces a new cooperative flooding scheme and two decentralized opportunistic cooperative forwarding mechanisms based on randomized coding, and a Routing Enabled Cooperative Medium Access Control (RECOMAC) protocol that enables cooperative forwarding, while incorporating physical, medium access control (MAC) and routing layers. RECOMAC employs randomized coding to realize cooperative diversity, so that relay selection and actuation mechanisms are alleviated and the MAC costs are reduced. The coded packets are routed in the network via the proposed cooperative forwarding schemes, which opportunistically form cooperative sets within a region, not needing a prior route to be established. Essentially, in the RECOMAC architecture, the routing layer functionality is submerged into the MAC layer to provide seamless cooperative communication, while the messaging overhead to set up routes, select and actuate relays is reduced. We evaluate the performance of RECOMAC in terms of network throughput, delay and MAC and routing overhead, in comparison to the conventional architecture based on the well-known IEEE 802.11 MAC and Ad hoc On Demand Distance Vector (AODV) routing protocols. RECOMAC is shown to provide quite significant improvement by an order of magnitude difference in all investigated performance metrics, under a variety of scenarios, considering different network sizes, static and mobile scenarios and networks with multiple flows.

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