The use of digital wireless communication systems has become more and more common during recent years. A multiple-input-multiple-output (MIMO) system using Space-Time Coding techniques can be implemented to enhance the capacity of a wireless link. The optimal decoder is based on the maximum likelihood principle. But as the number of the antennas in the system and the data rates increase, the ma...

Forward Error correcting Codes (FEC) is a technique used for controlling errors in data transmission over unreliable or noisy communication channels. This scheme is overhead in many wireless communication systems, even though they have enhanced data rates for the GSM evolution (EDGE), because, worldwide interoperability for microwave access (WiMAX) and long term evolution (LTE) have adopted low...

Some wireless message systems such as IS54, improved data rates for the GSM evolution (EDGE), universal interoperability for microwave access (WiMAX) and long term evolution (LTE) have adopted low-density parity-check (LDPC), tail-biting convolutional, and turbo codes as the forward error correcting codes (FEC) scheme for data and overhead channels. Therefore, many efficient algorithms have bee...

Background sprite decoding is an essential part of object-based video coding. The composition and rendering of a final scene involves the placing of individual video objects in a predefined way superimposed on the decoded background image. The MPEG-4 standard includes the decoding algorithm for background image decoding, but this algorithm is not suitable for implementation on a memory-constrai...

One of the major problems in communications engineering is to efficiently recover errors of transmitted data blocks by forward error correction (FEC). Low Density Parity Check (LDPC) codes are very popular for FEC. They are known to be one of the best coding schemes in terms of error correction performance. Because the decoding of practically used LDPC codes is NP-hard, only suboptimal algorith...

Performance evaluation of trellis and turbo-codes in at correlated Rayleigh fading traditionally assumes ideal channel interleaving and availability of perfect Channel State Information (CSI) at the receiver. This paper presents a joint iterative decoding and channel estimation scheme, which performs very well in the at Rayleigh fading channel with moderate to high Doppler rates, without channe...