Essays about: "Retransmission Mechanism"

Showing result 1 - 5 of 6 essays containing the words Retransmission Mechanism.

  1. 1. Evaluation of a Set of TCP Features over Narrowband Radio Bearer for Train Communication

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Pajtim Buzolli; Jakub Tadeusz Mucha; [2016]
    Keywords : TCP; TCP Features; Circuit Switched; GSM-R; Packet Switched; GPRS; Train Communication; Technology and Engineering;

    Abstract : An engineering approach to the evaluation of the TCP as a narrowband bearer for short messages in the low latency train-trackside communication scenario is described in this report. The project was developed in cooperation with Bombardier Transportation Sweden AB as a part of the “ETCS over GPRS” venture. READ MORE

  3. 2. A Diagnostic Tool for the Causes of Packet Corruption in Wireless Sensor Networks

    University essay from Mittuniversitetet/Avdelningen för informations- och kommunikationssystem

    Author : Wenxuan Jiang; [2015]
    Keywords : Wireless Sensor Network; Packets Corruption; RSSI; Logistic Regression;

    Abstract : The two main causes of packet corruption in wireless sensor network are multipath fading and WiFi interference. Identifying the cause of the corruption can be used to improve the reliability of the transmission. If the corruption is caused by WiFi interference, the network could change the channel to a free one. READ MORE

  4. 3. An IEEE 802.15.4 Packet Error Classification Algorithm : Discriminating Between Multipath Fading and Attenuation and WLAN

    University essay from Mittuniversitetet/Avdelningen för informations- och kommunikationssystem

    Author : Nan Chen; [2014]
    Keywords : WSN; error discrimination; MFA; WLAN interference; F-BER; RSSI; LQI; CC2420;

    Abstract : In wireless sensor networks, communications are usually destroyed by signal attenuation, multipath fading and different kinds of interferences like WLAN and microwave oven interference. In order to build a stable wireless communication system, reactions like retransmission mechanisms are necessary. READ MORE

  5. 4. Cyclic Redundancy Check for Zigbee-Based Meeting Attendance Registration System

    University essay from Avdelningen för elektronik, matematik och naturvetenskap

    Author : Yuelong Cheng; Xiaoying Ma; [2012]
    Keywords : CRC Check; Retransmission Mechanism; Meeting Attendance Registration System; ZigBee;

    Abstract : The research accomplished in this dissertation is focused on the design of effective solutions to the problem that error codes occur in the ZigBee-based meeting attendance registration system. In this work, several different check algorithms are compared, and the powerful error-detecting Cyclic Redundancy Check (CRC) algorithm is studied. READ MORE

  6. 5. Fast retransmit inhibitions for TCP

    University essay from Institutionen för informationsteknologi

    Author : Per Hurtig; [2006]
    Keywords : TCP; Congestion Control; Fast Retransmit; Timeout; Emulation; FreeBSD;

    Abstract : The Transmission Control Protocol (TCP) has been the dominant transport protocol in the Internet for many years. One of the reasons to this is that TCP employs congestion control mechanisms which prevent the Internet from being overloaded. READ MORE