Essays about: "DECODERS"

Showing result 16 - 19 of 19 essays containing the word DECODERS.

  1. 16. A Low-Power Implementation of Turbo Decoders

    University essay from Institutionen för systemteknik

    Author : Weihua Tang; [2007]
    Keywords : Turbo Codes; Early stopping; Iteration; SISO;

    Abstract : In the 3G standards, wireless communication system can support 2 Mb/s. With this data rate, multimedia communication is realized on handset. However, it is expected that new applications will require even higher data rates in future. In order to fulfil the growing requirement of high data rate, 100 Mb/s is considered as the aim of 4G standards. READ MORE

  3. 17. Hardware Accelerator for Duo-binary CTC decoding : Algorithm Selection, HW/SW Partitioning and FPGA Implementation

    University essay from Institutionen för systemteknik

    Author : Joakim Bjärmark; Marco Strandberg; [2006]
    Keywords : Error Correcting Codes; Turbo Codes; Decoding; Implementation; FPGA;

    Abstract : Wireless communication is always struggling with errors in the transmission. The digital data received from the radio channel is often erroneous due to thermal noise and fading. The error rate can be lowered by using higher transmission power or by using an effective error correcting code. READ MORE

  4. 18. Adaptive Wireless Multimedia Services

    University essay from KTH/Kommunikationssystem, CoS

    Author : Xiaokun Yi; [2006]
    Keywords : VOIP; SIP; Minisip; Adaptation; CODEC;

    Abstract : Context-awareness is a hot topic in mobile computing currently. A lot of importance is being attached to facilitating the user of various mobile computing devices to provide services that are more “user-centric”. READ MORE

  5. 19. Efficient Message Passing Decoding Using Vector-based Messages

    University essay from Institutionen för systemteknik

    Author : Mikael Grimnell; Mats Tjäder; [2005]
    Keywords : Forward Error Correction; Low Density Parity Check Codes; Message Passing Decoding; Belief Propagation; Extrinsic Information Transfer; Galois Fields; Phase Shift Keying;

    Abstract : The family of Low Density Parity Check (LDPC) codes is a strong candidate to be used as Forward Error Correction (FEC) in future communication systems due to its strong error correction capability. Most LDPC decoders use the Message Passing algorithm for decoding, which is an iterative algorithm that passes messages between its variable nodes and check nodes. READ MORE