دانلود مقاله ISI انگلیسی شماره 70681
عنوان فارسی مقاله

پروتکل MAC تعاونی بین لایه ای انرژی آگاه برای شبکه های ad hoc بی سیم

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
70681 2015 14 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
An Energy-Aware Cross-Layer Cooperative MAC Protocol for Wireless Ad Hoc Networks
منبع

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

Journal : Journal of Network and Computer Applications, Volume 58, December 2015, Pages 227–240

کلمات کلیدی
تعاونی MAC؛ بهره وری انرژی؛ طول عمر؛ انتخاب رله
پیش نمایش مقاله
پیش نمایش مقاله پروتکل MAC تعاونی بین لایه ای انرژی آگاه برای شبکه های ad hoc بی سیم

چکیده انگلیسی

Cooperative communication (CC) has recently emerged as an effective technique to combat the channel impairment, energy limitation and radio spectrum constraints. Physical-layer Network Coding (PNC) is an alternative applied in wireless networks to reduce transmission time slots and deliver higher throughput while also being energy-efficient. In order to benefits from both CC and PNC characteristics an efficient Medium Access Control (MAC) protocol is required. This study introduces a new cooperative MAC protocol called EAP-CMAC (Energy Aware Physical-layer Network Coding Cooperative MAC) that integrates cooperative communication into PNC in wireless ad-hoc networks. In EAP-CMAC, the best transmission mode is selected among direct transmission, traditional cooperation and PNC-based transmission by considering the destination queue and source-destination link quality. Moreover, a joint relay selection and power allocation algorithm is proposed based on location information and the nodes residual energy that significantly improves the network lifetime and energy saving in wireless networks. The simulation results indicate that EAP-CMAC outperforms IEEE 802.11 and CoopMAC in terms of network lifetime by 50% and 140% respectively. Furthermore, the proposed optimal power allocation enhances EAP-CMAC performance in terms of network lifetime by 7% compared to equal power allocation.

خرید مقاله
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