We describe a joint source/channel allocation scheme for transmitting images lossily over block erasure channels such as the Internet. The goal is to reduce image transmission latency. Our subband-level and bitplane-level optimization procedures give rise to an embedded channel coding strategy. Source and channel coding bits are allocated in order to minimize an expected distortion measure. Mor...

We describe a joint source/channel allocation scheme for transmitting images lossily over block erasure channels such as the Internet. The goal is to reduce image transmission latency. Our subband-level and bitplane-level optimization procedures give rise to an embedded channel coding strategy. Source and channel coding bits are allocated in order to minimize an expected distortion measure. Mor...

In this paper, we discuss two-stage encoding algorithms capable of correcting a fraction asymmetric errors. Suppose that the encoder transmits $n$ binary symbols $(x_1,\ldots,x_n)$ one-by-one over Z-channel, in which 1 is received only if transmitted. At some designated moment, say $n_1$, uses noiseless feedback and adjusts further strategy based on partial output channel $(y_1,\ldots,y_{n_1})$...

The paper presents a method of creating hidden channel using signals’ superposition. According to this idea, transmitter simultaneously sends overt and covert (secret) signals, whereby the signal is carrier for one. Due need ensure low probability detection communication, should have power. This implies number problems relating its correct reception. similar non-orthogonal multiple access (NOMA...