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Register a new userEffect of Adaptve Modulation on the data rate in current Mobile Networks
تأثير التعديل المتكيف على معدل الإرسال في شبكات الاتصال النقالة
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هيثم الرضوان( باحث )
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يهدف البحث إلى تحليل أداء النظام الخليوي من خلال دراسة تأثير تقنية التعديل المتكيف على معدل الإرسال. استخدمت في الدراسة تقنية المنطق العائم لتحليل معدل الإرسال للوصلة الهابطة اعتماداً على كل من نوع التعديل المستخدم و جودة التغطية و المسافة بين المرسل و المستقبل. حيث تمت معالجة أربعة بارامترات لمتحولات الدخل في نظام المنطق العائم و هي : استطاعة المحطة و جودة التغطية و نمط التعديل المستخدم و نسبة الإشارة إلى الضجيج ، بينما اعتمد بارامتر واحد للخرج و هو فعالية الطيف المستخدم ممثلاً بمعدل الإرسال بالبت في الثانية لكل هرتز. كما تم تقديم دراسة تحليلية لتحديد القيم المثلى لبارامترات الأداء الرئيسية المعتمدة لتحديد أفضل معدلات الإرسال من أجل قيم تعديل مختلفة بالإضافة إلى دراسة توابع العضوية لكل من محددات الدخل و الخرج للبارامترات المؤثرة على معدل الإرسال باستخدام تقنية المنطق العائم.
This works aims to study the performance of the mobile system via studying the effects of adaptive modulation technique on the data rate. Fuzzy logic technique is used as a tool to analyze the data rate of the downlink connection depending on type of modulation, coverage quality and the distant between the receiver and the transmitter. For parameters were considered as input parameters for the fuzzy logic system mainly are: power of the station, quality of coverage, the type of modulation technique and the signal to interface noise ratio. One parameter is used as an output of the fuzzy system which is spectrum efficiency in bit per second per hertz. Analytical study to select the optimal data rates for different modulation techniques will be considered. Additionally, studying the input and output memberships of the data rate parameters using fuzzy logic will be explained. Keywords: Data rate, downlink, signal to noise ratio, modulation type, Fuzzy logic, spectrum efficiency.
References used
R.HEIDARI, F. AFROZ, R SUBRAMANIAN, S CONG, K.SANDRASEGARAN, X.KONG, Packet scheduling study for heterogeneos trafic in IN downlink 3GPP LTE system, International Journal of Wireless & Mobile Networks (IJWMN), October 2015.,Vol. 7, No. 5, pp. 91-106
Manju Agrawal*, Naresh Purohit, Surabhi Kaushik, INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY PERFORMANCE ENHANCEMENT OF IEEE 802.16E (MOBILE WI-MAX) SYSTEM WITH ADAPTIVE MODULATION AND CODING TECHNIQUES, [Agrawal, 4(4): April, 2015,pp.18-23
P. SADHASIVAM, M. MANIKANDAN,VLSI Based Adaptive Modulation and Adaptive OFDM, IJRSET,2015, Volume 2, Issue 3 Pages: 37-45
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