ارائه یک روش زمانبندی منابع در نسل جدید شبکه‌های محلی بی‌سیم

پیرحیاتی, آزاده; محمدی, رضا; نصیری, محمد

doi:10.48301/kssa.2024.468976.2953

ارائه یک روش زمانبندی منابع در نسل جدید شبکه‌های محلی بی‌سیم

نوع مقاله : مقاله پژوهشی (کاربردی)

نویسندگان

آزاده پیرحیاتی

رضا محمدی

محمد نصیری

گروه مهندسی کامپیوتر، دانشکده مهندسی، دانشگاه بوعلی سینا، همدان، ایران

10.48301/kssa.2024.468976.2953

چکیده

با توجه به رشد سریع فناوری‌ها و سرویس‌های ارتباطی، پیش‌بینی می‌شود در سال‌های آتی میلیاردها دستگاه از طریق اینترنت و شبکه‌های بی‌سیم به‌هم وصل شوند و ترافیک زیادی بین آن‌ها ارسال و دریافت شود. استاندارد نسل ششم شبکه‌های بی‌سیم به نام IEEE 802.11ax یا WiFi6 برای محیط‌های پرتراکم طراحی شده است. یکی از مسائل اصلی در شبکه‌های بی‌سیم نسل ششم، مدیریت منابع در محیط‌های پرتراکم است. افزایش تعداد ایستگاه‌ها و نیاز به سرعت و کارایی بیشتر، چالش‌های جدیدی را در زمینه زمانبندی منابع ایجاد نموده است. از جمله این چالش‌ها می‌توان به افزایش تقاضای پهنای باند، تداخل فرکانسی، محدودیت منابع، زمانبندی منابع، مصرف انرژی، تاخیر و حفظ امنیت کاربران اشاره نمود. هدف ما ارائه یک روش زمانبندی منابع برای بهبود کارایی و بهره‌وری شبکه‌های بی‌سیم در محیط‌های پرتراکم و ناهمگن است که از کل فضای پهنای باند استفاده کند. در این پژوهش، یک روش برای زمانبندی منابع در نقطه دسترسی، مبتنی بر مکانیزم‌ دسترسی چندگانه تقسیم فرکانس متعامد (OFDMA) پیشنهاد شده است. این روش با استفاده از شبیه‌ساز شبکه ns-3 ارزیابی شده و نتایج نشان می‌دهد که زمانبند پیشنهادی در معیارهای توان عملیاتی، تاخیر انتها به انتها و تاخیر سرخط نسبت به روش‌های مورد مقایسه، عملکرد بهتری دارد. در نتیجه روش پیشنهادی می‌تواند به بهبود کیفیت تجربه کاربران در محیط‌های پرتراکم و ناهمگن کمک کند.

کلیدواژه‌ها

استاندارد IEEE 802.11ax

مکانیزم OFDMA

شبکه‌های محلی بی‌سیم

زمانبندی

WiFi6

موضوعات

شبکه

عنوان مقاله English

Providing a resource scheduling method in the new generation of wireless local networks

نویسندگان English

azadeh pirhayati

reza mohammadi

mohammad nassiri

Department of Computer Engineering, Faculty of Engineering, Bu-Ali Sina University, Hamedan, Iran

چکیده English

Due to the rapid growth of communication technologies and services, it is expected that in the coming years, billions of devices will be connected through the internet and wireless networks, and a lot of traffic will be sent and received between them. The sixth generation standard for wireless networks called IEEE 802.11ax or WiFi6 is designed for dense environments. One of the main issues in 6G wireless networks is resource management in dense environments. The increased number of stations and the need for more speed and efficiency have created new challenges in resource scheduling. Among these challenges, we can mention the increase in bandwidth demand, frequency interference, resource limitation, resource scheduling, energy consumption, delay, and maintaining the security of users. Our goal is to present a resource scheduling method to improve the efficiency and productivity of wireless networks in dense and heterogeneous environments that utilize the entire bandwidth space. In this research, a method for resource scheduling at the access point based on the Orthogonal Frequency Division Multiple Access (OFDMA) mechanism is proposed. This method has been evaluated using ns-3 network simulator. The results show the proposed scheduler's better performance in terms of throughput, end-to-end delay, and Head-of-Line delay. As a result, the proposed method can help improve the quality of users' experience in dense and heterogeneous environments.

کلیدواژه‌ها English

IEEE 802.11ax standard

OFDMA mechanism

Wireless LANs

scheduling

WiFi6

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