نتایج جستجو برای: protocol optimization

تعداد نتایج: 560544  

Vehicular ad hoc networks (VANETs) are a particular type of Mobile ad hoc networks (MANET) in which the vehicles are considered as nodes. Due to rapid topology changing and frequent disconnection makes it difficult to design an efficient routing protocol for routing data among vehicles. In this paper, a new routing protocol based on glowworm swarm optimization algorithm is provided. Using the g...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده مهندسی برق 1385

شبکه های حسگری بی سیم در سالهای اخیر توجه بسیاری از پژوهشگران را به خود جلب کرده است. این شبکه ها با استفاده از یک گیرنده و فرستنده کم توان می توانند داده های جمع آوری شده را برای کاربر بیرونی ارسال کنند. پیش بینی می شود این شبکه ها کیفیت زندگی را در آینده نزدیک بهبود بخشند. برای کاربردهای متداول شبکه های حسگری بی سیم، گره ها باید اندازه کوچکی داشته باشند. اندازه کوچک این گره ها باعث می شود انر...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده برق و الکترونیک 1390

there are many approaches for solving variety combinatorial optimization problems (np-compelete) that devided to exact solutions and approximate solutions. exact methods can only be used for very small size instances due to their expontional search space. for real-world problems, we have to employ approximate methods such as evolutionary algorithms (eas) that find a near-optimal solution in a r...

Journal: :Journal of the American College of Radiology : JACR 2014
Giles W Boland Richard Duszak Mannudeep Kalra

INTRODUCTION Ultimately, all medical care should be designed and then delivered with the goal of improving patient outcomes and experience. What constitutes a positive encounter will vary from one patient to another (eg, pain relief in terminal cancer vs curative resection in operable oncologic disease), so care pathways should be tailored to address individual patients’ needs. This tenet holds...

Journal: :EURASIP Journal on Wireless Communications and Networking 2019

Journal: :Journal of the Korean Society of Radiology 2011

Journal: :International Journal of Science and Research (IJSR) 2020

Journal: :journal of sciences, islamic republic of iran 2014
h. modarressi m. r. noori-daloii f. karami

isolation of cell free fetal dna (cffdna) from maternal serum usually leads to very low concentrations of dna impeding further resolving through conventional methods of electrophoresis. although several protocols have been described for capillary electrophoresis (ce) of double stranded dna, they usually need using special polymers or coated capillaries which degrade over time. herein, we propos...

Journal: :IET Communications 2016
Shiyang Hu Zhiguo Ding Qiang Ni

This paper considers the problem of beamforming optimization in an amplify-and-forward (AF) relaying cooperative network, in which the relay node harvests the energy from the radio-frequency (RF) signal. Based on the self-energy recycling relay protocol, we study the beamforming optimization problem. The formulated problem aims to maximize the achievable rate subject to the available transmitte...

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