In this project, the behavior of Generalized Approximate Message-Passing Decoder for BSC and Z Channel is studied using i.i.d matrices for constructing the codewords. The performance of GAMP in AWGN Channel is already evaluated in the previous scientific work of Jean Barbier[1], therefore, this project mainly focuses on the performance of GAMP decoder for BSC and Z Channel. We evaluate the perf...

Consider the rate-distortion problem, in which a helper sends a common limited-rate message both to the encoder and decoder based on side information at its disposal. We characterize the region of achievable rates and distortions for this problem. We derive these regions explicitly for binary doubly symmetric sources with Hamming distortion, and for Gaussian sources with square error distortion...

Recent wireless communication standards such as 3GPP-LTE, WiMax, DVB-SH, HSPA and LTE / LTE advanced incorporate turbo code for their excellent performance. In this paper, we present a new 3 dimensional turbo decoder including bit error rate (BER) is much better than the 2 dimensional turbo decoder used by LTE / LTE advanced, as is illustrated by simulation. We also address the issue of the imp...

In this paper, an area-efficient decoder architecture is proposed for the quasi-cyclic low-density parity check (QC-LDPC) codes specified in the IEEE 802.16e WiMAX standard. The decoder supports all the code rates and codeword lengths defined in the standard. In order to achieve low area and maximize hardware utilization, the decoder utilizes 4 decoding function units, which is the greatest com...

Error control decoders are widely used in communication applications. Analog CMOS implementations of error control decoders may outperform digital implementations in portable applications where power is limited. However, there have been little circuit level analyses of analog decoder designs. This dissertation covers the related analog circuits in the decoder design based on the extended (8, 4)...

In video coding standards, a compliant bit stream must be decoded by a hypothetical decoder that is conceptually connected to the output of an encoder and consists of a decoder buffer, a decoder, and a display unit. This virtual decoder is known as the hypothetical reference decoder (HRD) in H.263 and the video buffering verifier in MPEG. The encoder must create a bit stream so that the hypothe...

Distributed video coding is a relatively new video coding approach, where compression is achieved by performing motion estimation at the decoder. Current techniques for decoder-side motion estimation make use of assumptions such as linear motion between the reference frames. It is only after the frame is partially decoded that some of the errors are corrected. In this paper, we propose a new ap...

Convolution codes are one of the FEC codes that are used in every digital communication system. Convolution coding can be applied to block of data and also to a continuous input stream. Convolutional encoder can be viewed as a finite state machine.Viterbi algorithm is employed in wireless communications to decode the convolution codes. Such decoders are complex and dissipate large amount of pow...

A major hurdle to clinical translation of brain-machine interfaces (BMIs) is that current decoders, which are trained from a small quantity of recent data, become ineffective when neural recording conditions subsequently change. We tested whether a decoder could be made more robust to future neural variability by training it to handle a variety of recording conditions sampled from months of pre...

In this report, we study source coding problems with decoder side information (SI). Source coding problems with decoder side information are a special case of distributed source coding problems. We outline the relation between various distributed source coding problems in Table 1 with the help of Figure 1. For reference, we also include the standard single-source lossless and lossy compression ...