Essays about: "3g to 4g"

Showing result 21 - 25 of 52 essays containing the words 3g to 4g.

  1. 21. Software Defined Radio based MIMO channel sounding

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

    Author : Jens Elofsson; Peter Seimar; [2016]
    Keywords : channel sounding; MIMO; Zadoff Chu; M-sequences; USRP; FPGA; Technology and Engineering;

    Abstract : With todays increased use of smartphones and other wireless devices, the demands on the wireless networks have increased dramatically. This has prompted the re- search and development of new types of wireless systems using multiple antennas at both the transmitter and the receiver, known as MIMO. READ MORE

  3. 22. Implementing Linear Predictive Coding based on a statistical model for LTE fronthaul

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

    Author : Ghassan Nakkoul; Mohammad Shohag Hassan Kaikobad; [2016]
    Keywords : Entropy; LTE fronthaul; RRH; BBU; C-RAN; Quantization; LTE downlink; Cyclic prefix; LPC; EVM; OFDM; Linear predicting coding; LTE; Technology and Engineering;

    Abstract : This thesis studies the application of Linear Predictive coding (LPC) in the downlink of Long Term Evolution (LTE) fronthaul, which comprises of BBU and RRH. This can act as an additional module in the existing system. Today, the transmission of a single complex sample from the BBU to the RRH consumes 30 bits. READ MORE

  4. 23. Performance of International roaming Location Update in 3G and 4G networks

    University essay from Blekinge Tekniska Högskola/Institutionen för kommunikationssystem

    Author : Sanaz Moshirian; [2015]
    Keywords : International Roaming; LTE; Delay; Tracing; Performance;

    Abstract : Since Mobile network operator (MNO) relies on many Business Support Systems (BSS) and Operation Support Systems (OSS) it should be assured that operator’s systems supports the requirements of the future.This thesis shall focus on the “start-to-end” aspects that must be considered to ensure that International Roaming continues to operate flawless. READ MORE

  5. 24. Handover Optimization in GSM

    University essay from Linköpings universitet/Optimeringslära; Linköpings universitet/Tekniska fakulteten

    Author : Johann Joachim Pavski; [2015]
    Keywords : Optimization; heuristic; fuzzy control; costly global optimization; surrogate surface; GSM; handover.;

    Abstract : In telecommunications in general and in GSM in particular, the handover is a feature that guarantees a smooth transition of a call from one base station - that is for the purpose of this project an antenna - to another. In the recent ten years, the amount of data traffic through mobile telecommunications has doubled annually, putting an enormous strain on the network and forcing operators to upgrade with more and more base stations and new features. READ MORE

  6. 25. Economical Debug Station For debugging 3G modem

    University essay from Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling

    Author : Mohammad Johari Varnoosfaderani; [2015]
    Keywords : ;

    Abstract : Communication world is growing with an incredible high speed. Every day comes new technologies and give us more access and opportunities in work and life. One of the most important branches is small cells and similar product families. It extends from a simple telegraph codes to 3G W-CDMA and 4G LTE networks. READ MORE