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| تعداد مقالات | 9,294 |
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بررسی تغییرات داده محیطی در ارسال داده توسط حسگرها بر طول عمر شبکه‌های حسگر بی‌سیم | ||
| پدافند الکترونیکی و سایبری | ||
| مقاله 2، دوره 12، شماره 3 - شماره پیاپی 47، آبان 1403، صفحه 15-22 اصل مقاله (790.25 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| نویسندگان | ||
| جمال زارع پور احمدآبادی* 1؛ کوثر ابراهیمی2 | ||
| 1استادیار، دانشگاه یزد،یزد،ایران | ||
| 2دانشجوی کارشناسی ، دانشگاه یزد،یزد،ایران | ||
| تاریخ دریافت: 17 مرداد 1403، تاریخ بازنگری: 02 شهریور 1403، تاریخ پذیرش: 06 مهر 1403 | ||
| چکیده | ||
| یکی از مهمترین چالشها در حوزه شبکه‌های حسگر بی‌سیم محدودیت انرژی حسگرها است که مستقیماً با طول عمر شبکه در ارتباط است. تاکنون تلاشهای بسیاری در جهت کاهش مصرف انرژی حسگرها انجام شده است تا بدین‌وسیله با افزایش طول عمر شبکه، میزان بهرهوری از شبکه‌های حسگر بی‌سیم افزایش یابد. یکی از عوامل مؤثر بر مصرف انرژی حسگرها، محیط اطراف آن‌ها می‌باشد. در بسیاری از روش‌های موجود، فرض می‌شود که حسگرها در تمام مراحل، داده‌های دریافتی خود را ارسال می‌کنند درحالی‌که ممکن است محیط یا بخشی از آن نسبت به مرحله قبل تغییری نداشته باشد و درنتیجه برخی از این حسگرها در تمام مراحل چرخه حیات خود، داده‌های جدیدی جهت ارائه نداشته باشند. در این مقاله باتوجه‌به میزان تغییرات محیط اطراف شبکه‌های حسگر بی‌سیم، روشی سازگار با محیط ارائه شده است که در هر مرحله، فقط حسگرهایی که اطلاعات دریافتی آن‌ها نسبت به مرحله قبل تغییر قابل‌توجهی داشته باشد، اقدام به ارسال داده می‌کنند و درصورتی‌که تغییرات آن‌ها قابل‌توجه نباشد، تنها بسته‌های کنترلی کم‌حجمی را جهت اعلام زنده‌بودن ارسال می‌کنند. نتایج شبیهسازی نشان از حداقل 63/16 افزایش طول عمر شبکه دارد. | ||
| کلیدواژه‌ها | ||
| شبکه‌های حسگر بی‌سیم؛ نرخ تغییرات محیط؛ میزان مصرف انرژی؛ طول عمر شبکه‌های حسگر بی‌سیم | ||
| موضوعات | ||
| دفاع الکترونیک (لیزری، الکترواپتیکی، آکوستیکی) | ||
| عنوان مقاله [English] | ||
| Investigating the Impact of Environmental Data Changes on the Lifetime of Wireless Sensor Network | ||
| نویسندگان [English] | ||
| Jamal Zarepour-Ahmadabadi1؛ kowsar Ebrahimi2 | ||
| 1Assistant Professor, Yazd University, Yazd, Iran | ||
| 2Bachelor student, Yazd University, Yazd, Iran | ||
| چکیده [English] | ||
| One of the most important challenges for wireless sensor networks is the limitation of energy of sensors, which is directly related to the lifetime of the network. So far, many researchers tried to decrease the energy consumption of sensors, thus increase the lifetime and the efficiency of wireless sensor networks. One of the factors affecting the energy consumption of sensors is their environment. In many existing methods, it is assumed that the sensors send their sensed data at all stages, while the environment or some parts of it may not change from the previous stage, and as a result, some of the sensors may not have new data to provide at all stages. In this paper, an environmentally-aware approach is presented, where only sensors, that have sensed significant changes in their sensed information from previous step, will send their data to the base station. If their changes are insignificant, they will only send small control packets to indicate being alive. The simulation of the proposed algorithm, which is based on the probability of changes in the environment, shows at least 16.63% increase network`s lifetime. | ||
| کلیدواژه‌ها [English] | ||
| Wireless sensor networks, Changes rate of environment, Energy consumption, Lifetime of wireless sensor networks | ||
| مراجع | ||
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