Essays about: "wimax gsm"

Showing result 1 - 5 of 11 essays containing the words wimax gsm.

  1. 1. Ad Hoc Network Nodes Scheduling using DS and FH CDMA

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : Farhan Khan; Muhammad Umer Khan and Noman Ellahi; [2013]
    Keywords : Ad Hoc Network; Node Scheduling; FH-CDMA; DS-CDMA;

    Abstract : Nowadays most communication networks like GSM, WLan or WiMAX are based on pre-existing infrastructure. These infrastructures are complicated, costly and difficult to deploy in very short time. Whereas Wireless Ad Hoc Networks are infrastructure-free self organizing networks which consist of co-operating nodes. READ MORE

  3. 2. A comparative overview of modern communication systems and standards

    University essay from KTH/Signalbehandling

    Author : Mostafa Majdi; [2013]
    Keywords : ;

    Abstract : With the dynamic changes in technological advancements, wireless communicationtechnologies has made a tremendous progress from simple to complex systems that are able tocommunicate across multiple networks platform. As these systems continue to prove theirproficiency and benefits, it is strongly asserted that wireless technologies will continue to play aneven more critical and vital role compared to wired connections in the future. READ MORE

  4. 3. Evaluation of Word Length Effects on Multistandard Soft Decision Viterbi Decoding

    University essay from Elektroniksystem

    Author : Ahmed Salim; [2011]
    Keywords : Soft-Decision Viterbi; Tail-biting; Zero-tail; Direct Trace-back; Word Length effects; floating point quantization; BER analysis;

    Abstract : There have been proposals of many parity inducing techniques like Forward ErrorCorrection (FEC) which try to cope the problem of channel induced errors to alarge extent if not completely eradicate. The convolutional codes have been widelyidentified to be very efficient among the known channel coding techniques. READ MORE

  5. 4. MULTIPLE ANTENNA TECHNIQUES IN WiMAX

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : Waseem Hussain Sandhu; Muhammad Awais; [2010]
    Keywords : MIMO; Diversity; Multiple Antenna Techniques; WiMax;

    Abstract : Now-a-days wireless networks such as cellular communication have deeply affected human lives and became an essential part of it. The demand to buy high capacity and better performance devices and cellular services has been rapidly increased. READ MORE

  6. 5. A study of security in wireless and mobile payments

    University essay from Institutionen för systemteknik

    Author : Ahmed Ali; [2010]
    Keywords : WLAN; 3G; GSM; Security; Mobile payments; Cryptography; UMTS;

    Abstract : Mobile payments are increasing in popularity in recent years. New mobile solutions are being developed in the form of new Internet capable mobile devices such as the IPhone and new wireless networks such as the LTE and WiMAX networks. READ MORE