الگوريتم وفقي دسته‌بندي ترافيک پخش زنده IPTV در شبکه EPON
محورهای موضوعی : مهندسی برق و کامپیوترمحسن احمدزاده 1 , محمد بهدادفر 2 , محمدرضا نوری فرد 3
1 - دانشگاه صدا و سيما
2 - دانشگاه صدا و سيما
3 - دانشگاه صدا و سيما
کلید واژه: شبکه غير فعال نوري در بستر اترنت الگوريتم دسته‌بندي بسته‌ها نرخ از دست دادن بسته ارسال گروهي,
چکیده مقاله :
در اين مقاله، الگوريتمي با قابليت تنظيم وفقي براي دسته‌بندي بسته‌‌هاي IPTV با هدف کاهش نرخ از دست دادن بسته در شبکه غير فعال نوري در بستر اترنت ارائه شده است. این الگوریتم به وسیله دسته‌بندی مناسب بسته‌های ورودی به OLT، عملکرد تخصیص پهنای باند با روش WRR را بهبود می‌بخشد. بر اساس نتايج شبيه‌سازي‌هاي صورت‌گرفته توسط شبيه‌ساز NS، نرخ از دست دادن بسته در روش پيشنهادي نسبت به روش‌هاي پيشين در بهترین حالت 65% کاهش يافته است.
In this paper, An IPTV packet classification algorithm is introduced with adaptive adjustment property and the objective of reducing packet loss ratio in Ethernet passive optical networks. The proposed algorithm, improves weight allocation for WRR scheduling using proper classification and prioritization of arriving packets to OLT. Based on simulation results with NS2 simulator, the packet loss ratio of proposed algorithm, shows a 65% reduction compared to existing methods which leads to perceptible user quality of experience improvement.
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