Sökning: "NS-2"

Visar resultat 1 - 5 av 30 uppsatser innehållade ordet NS-2.

  1. 1. Akuta effekter av assisterade hopp på kvinnliga idrottares hoppförmåga

    Kandidat-uppsats, Göteborgs universitet/Institutionen för kost- och idrottsvetenskap

    Författare :Joel Malka; [2014-06-26]
    Nyckelord :assisterade hopp; postactivation; potentiation; överhastighet;

    Sammanfattning : Förmågan att hoppa högt är av stor betydelse inom många idrotter. Syftet med denna studie var att undersöka de akuta effekterna av assisterade hopp på efterföljande prestationer i så kallade countermovement jumps (CMJ) av kvinnliga idrottare. Nio friska, tränade kvinnor deltog frivilligt i studien. LÄS MER

  3. 2. PERFORMANCE ANALYSIS BY SIMULATION OF A WIRELESS SYSTEM ASSOCIATED WITH UWB

    Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Författare :Tarek Tabchi; Khadim Hussain; Murtaza Jamal; [2013]
    Nyckelord :Ad-hoc network; AODV; DSDV; DSR; NOAH; UWB;

    Sammanfattning : Ultra Wideband transmission technique is supposed to be a promising candidate for fixed and mobile ad-hoc networks in short range scenarios. Ad-hoc networks are characterized by a lake of infrastructure, thus routing protocols are needed to establish connections between nodes. LÄS MER

  4. 3. Media Access Control for Wireless Sensor and Actuator Networks

    Master-uppsats, Kommunikationssystem; Tekniska högskolan

    Författare :Muaz Un Nabi; [2012]
    Nyckelord :NS-2; WSN; IWLAN; DCF; PCF;

    Sammanfattning : In a wireless network, the medium is a shared resource. The nodes in the network negotiate access of the shared resource using the Medium Access Control (MAC) protocol. The design of a MAC protocol for a sensor node is not the same as that for a wireless transceiver. LÄS MER

  5. 4. Implementation and performance analysis of star-based mesh network

    Master-uppsats, JTH, Data- och elektroteknik; Tekniska Högskolan

    Författare :Muhammad Haq; [2011]
    Nyckelord :WSN; PAN-coordinator; Full-function device; Reduced-function device; Mesh topology; Beacon Network simulator; NS-2; Shadowing model;

    Sammanfattning : The goal of the thesis is to design the star-based mesh topology by introducing multiple pan-coordinators (hub/switches) under a multipath-fading environment and to improve the data transaction rate of a network which usually gets worst when there is a single pan-coordinator for synchronization of devices in conventional mesh topology; also reduce the hop-count as least as possible. Most of the work has been done on NS-2 network simulator; therefore the research model which has been used here is a simulation model. LÄS MER

  7. 5. Performance Analysis and Optimization of One-hop Network Coding in Multi-hop Wireless Networks

    Master-uppsats, Institutionen för informationsteknologi

    Författare :Lu Liu; [2011]
    Nyckelord :;

    Sammanfattning : In this paper, we analyze the performance of one-hop network coding in multi-hop networks and optimize it by two solutions. One is evaluating cost-delay tradeoff of opportunistic network coding in a two-way relay network with asymmetric arrival rates, we first formulate the variance of the queue into a Markov chain and derive the transition probability and the stable distribution. LÄS MER